[
  {
    "case_id": "stats_parallel_series_pairs_J_tpl0_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl0_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1016_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1016_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1017_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1017_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1025_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1025_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1027_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1027_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1031_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1031_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1034_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1034_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1040_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1040_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1044_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1044_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1045_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1045_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1047_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1047_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1060_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1060_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1073_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1073_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl107_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl107_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1098_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1098_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1102_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1102_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1106_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1106_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1107_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1107_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1113_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1113_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl112_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl112_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1130_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1130_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1142_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1142_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1143_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1143_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl114_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl114_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1164_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1164_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1166_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1166_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1191_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1191_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1193_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1193_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1194_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1194_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1195_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1195_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1201_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1201_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1210_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1210_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1214_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1214_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1224_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1224_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl122_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl122_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1232_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1232_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1246_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1246_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1259_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1259_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl125_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl125_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1261_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1261_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1262_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1262_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1276_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1276_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1277_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1277_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1309_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1309_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1313_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1313_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1323_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1323_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1333_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1333_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1335_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1335_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1340_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1340_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1342_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1342_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1346_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1346_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1354_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1354_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1359_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1359_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1361_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1361_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1379_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1379_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1422_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1422_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1428_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1428_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1453_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1453_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1478_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1478_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl147_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl147_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl151_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl151_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl156_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl156_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl159_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl159_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl174_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl174_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl220_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl220_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl225_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl225_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl235_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl235_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl268_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl268_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl278_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl278_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl280_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl280_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl293_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl293_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl33_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl33_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl344_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl344_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl360_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl360_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl368_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl368_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl385_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl385_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl3_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl3_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl402_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl402_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl404_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl404_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl411_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl411_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl438_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl438_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl53_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl53_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl548_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl548_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl553_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl553_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl56_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl56_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl575_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl575_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl605_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl605_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl616_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl616_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl620_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl620_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl626_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl626_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl63_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl63_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl705_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl705_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl771_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl771_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl832_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl832_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl844_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl844_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl853_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl853_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl880_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl880_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl890_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl890_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl906_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl906_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl907_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,J",
    "target_set": [
      "H",
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl907_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1004_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1004_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1008_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1008_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1010_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1010_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1014_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1014_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1021_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1021_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1026_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1026_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1028_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1028_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1032_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1032_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1036_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1036_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1045_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1045_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1048_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1048_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1049_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1049_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1054_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1054_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1055_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1055_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1060_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1060_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1064_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1064_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1065_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1065_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1067_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1067_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1068_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1068_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1071_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1071_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1074_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1074_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1076_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1076_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1080_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1080_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1092_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1092_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1117_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1117_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl111_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl111_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1145_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1145_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1160_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1160_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1162_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1162_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1180_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1180_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl11_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl11_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1206_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1206_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1246_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1246_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1256_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1256_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1276_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1276_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1314_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1314_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1324_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1324_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1371_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1371_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1385_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1385_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1403_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "G",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1403_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1466_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1466_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl1494_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl1494_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl153_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl153_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl160_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl160_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl163_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl163_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl174_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl174_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl175_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl175_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl184_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl184_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl185_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl185_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl186_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl186_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl200_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl200_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl201_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl201_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl206_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl206_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl207_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl207_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl208_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl208_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl217_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl217_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl220_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl220_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl223_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl223_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl225_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl225_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl229_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl229_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl234_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl234_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl240_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl240_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl244_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl244_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl251_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl251_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl25_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl25_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl262_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl262_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl278_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl278_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl289_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl289_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl298_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl298_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl2_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl2_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl304_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl304_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl324_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl324_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl325_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl325_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl327_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl327_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl328_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl328_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl332_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl332_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl340_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl340_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl341_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl341_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl352_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl352_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl356_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl356_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl368_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl368_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl371_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl371_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl372_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl372_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl382_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl382_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl389_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl389_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl390_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl390_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl393_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl393_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl394_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl394_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl396_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl396_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl39_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are consistent?",
        "golden": [
          "C",
          "E",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl39_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl3_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl3_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl400_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl400_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl402_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl402_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl417_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl417_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl429_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl429_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl434_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl434_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl437_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R1): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl437_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl43_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl43_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl444_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl444_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl445_run0",
    "cbm_challenge_type": "failed_stay",
    "oracle": "H,K",
    "target_set": [
      "H",
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 2:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 3:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R1): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H",
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_stay/parallel_series_pairs_fullbank_v9_pairset_2p2_quick_failed_stay_20260507_163708_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl445_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl111_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are consistent?",
        "golden": [
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl111_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl115_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl115_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl117_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl117_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl120_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl120_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl123_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl123_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl125_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl125_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl158_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl158_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl170_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl170_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl180_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl180_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl181_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl181_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl183_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl183_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl190_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl190_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl1_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl1_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl20_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl20_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl215_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl215_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl219_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl219_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl220_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl220_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl221_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl221_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl222_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl222_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl224_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl224_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl233_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl233_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl235_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl235_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl242_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl242_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl253_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl253_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl254_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl254_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl25_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl25_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl267_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl267_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl274_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl274_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl278_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl278_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl279_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl279_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl27_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl27_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl281_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl281_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl288_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl288_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl293_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl293_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl305_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl305_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl308_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl308_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl312_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl312_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl313_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl313_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl314_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl314_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl317_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R3): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl317_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl322_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl322_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl329_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl329_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl32_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "A",
          "B",
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl32_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl330_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl330_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl336_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl336_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl342_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl342_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl350_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl350_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl351_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl351_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl356_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl356_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl363_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl363_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl366_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl366_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl368_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl368_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl375_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl375_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl376_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl376_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl377_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R3): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl377_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl380_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl380_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl382_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl382_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl384_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl384_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl387_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl387_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl389_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl389_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl38_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "A",
          "B",
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl38_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl391_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl391_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl395_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl395_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl396_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl396_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl397_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl397_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl398_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl398_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl399_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl399_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl3_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl3_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl402_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl402_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl405_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl405_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl410_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl410_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl417_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl417_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl420_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl420_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl425_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl425_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl426_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl426_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl42_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "A",
          "B",
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl42_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl433_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl433_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl442_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl442_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl443_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl443_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl444_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl444_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl447_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl447_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl453_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl453_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl454_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl454_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl456_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl456_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl457_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl457_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl458_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl458_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl459_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl459_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl472_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl472_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl47_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "A",
          "B",
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl47_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl483_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl483_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl489_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl489_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl491_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl491_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl492_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl492_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl507_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl507_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl513_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl513_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl516_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl516_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl51_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "A",
          "B",
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl51_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl532_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl532_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl533_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R2): > 0\n  - Voltage (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl533_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_J_tpl535_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "J",
    "target_set": [
      "J"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "J"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Voltage (R3): = 0\n  - Voltage (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "J"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_J_tpl535_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl111_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl111_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl117_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (R2): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl117_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl165_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl165_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl175_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R1): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl175_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl249_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl249_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl24_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "A",
          "B",
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl24_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl256_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl256_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl263_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R3): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): > 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl263_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl293_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): > 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl293_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl323_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl323_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl351_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl351_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl361_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl361_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl381_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl381_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl395_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl395_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl403_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl403_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl419_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl419_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl432_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): > 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl432_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl433_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl433_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl461_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "A",
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (R2): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R2): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl461_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl539_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl539_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl648_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Voltage (Battery): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "B",
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl648_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl65_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R3): > 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl65_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl775_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R4): > 0\n  - Voltage (R1): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl775_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl781_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R4): = 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (R1): > 0\n  - Current (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl781_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl913_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R3): = 0\n  - Voltage (R3): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl913_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  },
  {
    "case_id": "stats_parallel_series_pairs_K_tpl951_run0",
    "cbm_challenge_type": "failed_update",
    "oracle": "K",
    "target_set": [
      "K"
    ],
    "system_prompt": "You are diagnosing a circuit-fault benchmark.\n\nExactly one hidden fault exists, but the diagnosis may take several\nturns to narrow down.\nEach turn you receive a new measurement result. Update your assessment\nof which fault IDs are consistent with the evidence. Each new reading\nmay clarify the diagnosis and call for reassessment.\n\nFault Space:\n  A: Battery no output (the battery cannot provide usable voltage at its external terminals in this benchmark)\n  B: Switch stuck open (not conducting)\n  C: Switch stuck closed (conducting)\n  D: R1 open path (series-pair branch element broken or burned out)\n  E: R1 short path (series-pair branch element failed short, 0 Ω)\n  F: R2 open path (series-pair branch element broken or burned out)\n  G: R2 short path (series-pair branch element failed short, 0 Ω)\n  H: R3 open path (series-pair branch element broken or burned out)\n  I: R3 short path (series-pair branch element failed short, 0 Ω)\n  J: R4 open path (series-pair branch element broken or burned out)\n  K: R4 short path (series-pair branch element failed short, 0 Ω)\n\nCircuit Configuration:\nParallel Circuit (Two Series Resistor Branches) with components Battery, Switch, R1, R2, R3, R4. The battery and switch are in the main branch. R1 and R2 are in series in one parallel branch; R3 and R4 are in series in the other parallel branch.\n\nMeasurement semantics:\n- Current (Main) is current through the main branch.\n- Current (R1) and Current (R2) are the same series-branch current\n  through the R1--R2 branch.\n- Current (R3) and Current (R4) are the same series-branch current\n  through the R3--R4 branch.\n- Voltage (R1), Voltage (R2), Voltage (R3), and Voltage (R4) are\n  terminal voltages across the named resistor element.\n- Voltage (Battery) is measured across the battery terminals.\n- For ammeters and voltmeters: = 0 means no measurable current/voltage;\n  > 0 means nonzero current/voltage.\n\nFault behavior reference — powered readings each fault can be consistent with:\n  A:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): = 0\n  B:\n    - Current (Main): = 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): = 0\n    - Voltage (R2): = 0\n    - Voltage (R3): = 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  C:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  D:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  E:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  F:\n    - Current (Main): > 0\n    - Current (R1): = 0\n    - Current (R2): = 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): = 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  G:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): = 0\n    - Voltage (R3): > 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  H:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n  I:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  J:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): = 0\n    - Current (R4): = 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): = 0\n    - Voltage (R4): > 0\n    - Voltage (Battery): > 0\n  K:\n    - Current (Main): > 0\n    - Current (R1): > 0\n    - Current (R2): > 0\n    - Current (R3): > 0\n    - Current (R4): > 0\n    - Voltage (R1): > 0\n    - Voltage (R2): > 0\n    - Voltage (R3): > 0\n    - Voltage (R4): = 0\n    - Voltage (Battery): > 0\n\nBenchmark setup:\n- All measurements in this benchmark are modeled as non-invasive\n  powered-circuit observations: the circuit stays assembled while an\n  instrument reads a branch/component state.\n\nAt each turn, output every fault ID that remains consistent with the\nmeasurement evidence. If no fault remains\nconsistent, output `none`.\n\nOutput format (strict):\n<hypothesis>fault_id_1, fault_id_2</hypothesis>\n\n- Include exactly one `<hypothesis>...</hypothesis>` tag in every reply.\n- `<hypothesis>` must contain comma-separated fault IDs from the listed fault space, or `none`.\n- If you reason before answering, put the final `<hypothesis>` tag on the last line.\n",
    "turns": [
      {
        "prompt": "Turn 0:\n\n- Measurements:\n  - Current (Main): > 0\n  - Voltage (R4): = 0\n\nWhat faults are consistent?",
        "golden": [
          "H",
          "K"
        ]
      },
      {
        "prompt": "Turn 1:\n\n- Measurements:\n  - Current (R4): = 0\n  - Voltage (Battery): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "H"
        ]
      },
      {
        "prompt": "Turn 2 (CORRECTION):\nDiscard the measurement from Turn 1 and replace it with these corrected measurements.\n\n- Measurements:\n  - Current (Main): > 0\n  - Current (R4): > 0\n\nWhat faults are now consistent?",
        "golden": [
          "K"
        ]
      }
    ],
    "source_file": "task_b/outputs/failed_update_failed_stay_case_0507/failed_update/parallel_series_pairs_quick_failed_update_20260507_035543_gpu2/belief_failure/stats_parallel_series_pairs_K_tpl951_run0.json",
    "source_category": "belief_failure",
    "source_repeat_index": 0
  }
]