# Beam Search — faithful port of SkyDiscover's BeamSearchDatabase defaults.
# Sections mirror the six core components.
seed: 0
general:
  max_iterations: 100
  inner_retry_times: 3                     # SkyDiscover default controller retry_times=3: up to 3
                                           # propose+eval attempts per iteration against the SAME
                                           # sampled parent, first valid admitted; a failed iteration
                                           # adds no child (iteration still advances by 1)
  inner_retry_solution_chars: 1500         # _format_failed_attempts caps the failed solution/response at 1500
  inner_retry_traceback_chars: 800         # ... and the traceback tail at 800 (SkyDiscover defaults)
population:                                # BeamPopulation
  beam_width: 5                          # number of candidates kept in the beam
  beam_diversity_weight: 0.3             # weight of the diversity term, 0 = pure fitness
                                         # (also read by selection_policy)
  beam_depth_penalty: 0.0                # exponential fitness penalty per search-tree depth (0 = off)
selection_policy:                         # BeamSelectionPolicy
  beam_selection_strategy: diversity_weighted   # best | stochastic | round_robin | diversity_weighted
  beam_temperature: 1.0                  # softmax temperature for stochastic / diversity_weighted
  num_inspirations: 4                    # global top programs used as context (num_context_programs)