max_iterations: 100 checkpoint_interval: 10 log_level: INFO llm: primary_model: claude-opus-4-6 primary_model_weight: 1.0 api_base: https://api.anthropic.com/v1 api_key: ${ANTHROPIC_API_KEY} temperature: 0.7 max_tokens: 16384 timeout: 600 prompt: system_message: |- You are an expert in additive combinatorics. Find a finite set U of non-negative integers (containing 0) maximizing C6 = 1 + log(|U-U|/|U+U|)/log(2*max(U)+1). Benchmark is 1.158417281556896. Consider number-theoretic constructions. numpy is available. num_top_programs: 3 use_template_stochasticity: true database: population_size: 60 archive_size: 25 num_islands: 4 elite_selection_ratio: 0.3 exploitation_ratio: 0.7 evaluator: timeout: 600 cascade_evaluation: false parallel_evaluations: 1 use_llm_feedback: false diff_based_evolution: true allow_full_rewrites: false