| # §4 Week-1 Gate — Results Log |
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| Auditable record of the GO/NO-GO gate. Every number traces to public data + a script in this folder. |
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| Env note: `datasets.load_dataset` hangs in this box (it resolves blobs via the dead |
| `cdn-lfs.huggingface.co`, HTTP 000). Workaround used everywhere: `hf_hub_download` of the |
| parquet directly (Xet/CAS path, works), then read with pyarrow. HF token in gitignored `../../.env`. |
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| ## Step 2 — is the 32k+ slice real (in TOKENS, not chars)? ✅ PASS |
| `step2_tokenize_packs.py --pack 40K --scope verified` · tokenizer `Qwen/Qwen3-Coder-30B-A3B-Instruct` |
| · data `princeton-nlp/SWE-bench_bm25_40K` ∩ `SWE-bench_Verified` (500) · CPU-only. |
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| - Token-length: p10 44,514 · **p50 46,598** · p90 47,712 · p99 48,178. |
| - **100%** of the 500 clear 32k (and 24k, 16k). |
| - char/token median **3.63** → raw HF `char_len` overstates length ~3.6×; tokenizing locally was necessary. |
| - Length-vs-difficulty confound (2602.16069) **absent**: median tokens flat across difficulty |
| (`<15min`=46,774 · `15min-1h`=46,455 · `1-4h`=46,517 · `>4h`=47,119). |
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| Caveat: packs are uniformly ~46k because BM25 packs to a ~40k *budget*; "long" is a property of |
| the retrieval construction, not of natural trajectory length. Sufficient for the dilution premise |
| (context genuinely >32k), consistent with proposal §8 ("construct the long context yourself"). |
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| Artifacts: `out/step2_40K_verified.json` (per-instance), `out/step2_summary_verified.json`. |
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| Status: 32k premise holds. Confound guarded. → proceed. |
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| ## Step 1 — build oracle-collapsed (de-diluted span) ✅ DONE (CPU, free) |
| `step1_build_oracle_collapsed.py --ctx 15` · gold files from `princeton-nlp/SWE-bench_oracle`, |
| hunk ranges from gold `patch` (- side) · Verified 500 · tokenizer Qwen3-Coder. |
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| C* = `[ <issue> ; gold files collapsed to ±15 lines around each hunk ; <failing_test> ]`. |
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| - Token dist: p10 881 · **p50 1,489** · p75 2,250 · p90 3,239 · p99 8,424. |
| - **~31× smaller than the diluted pack** (step-2 median 46,598). Even p99 (8.4k) is well below the |
| ~46k dilution regime → the de-diluted span sits beneath dilution onset, as the premise requires. |
| - 499/500 parsed clean; 1 edge case (`astropy-13398`: gold patch *creates* a file → no pre-image, |
| 3/4 files still collapsed). Spot-check `astropy-12907`: ±15 window correctly contains the buggy |
| line the gold patch fixes. |
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| Artifact: `out/step1_oracle_collapsed_ctx15.json` (per-instance context + token count). |
| Status: de-diluted span built and verified. → ready for steps 3/4 (need teacher on GPU 1 + scoring). |
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| ## Step 1b (open infra for 3/4): teacher = Qwen3-Coder-30B-A3B on GPU 1 (vllm not yet installed); |
| ## scoring = proxy (gold-hunk localization) first, then hosted sb-cli for binding FAIL_TO_PASS. |
| ## Step 3 — per-span-type compressibility gap — TODO (existential kill criterion) |
| ## Step 4 — 3-condition scissor ceiling (trunc / mask / oracle) — TODO (existential kill criterion) |
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