{
  "approach": "R4 np-lambda: intended to combine per-step print counts with a gap-based Poisson rate estimate, test a cap above 1.82 and faster warm-up, and compare one frozen candidate against NP. Execution stopped at the mandatory setup failure.",
  "tried": [],
  "next": "Provide an execution environment with bzip2 available for tar extraction, then rerun the mandatory setup before implementing or measuring candidates.",
  "code": null,
  "code_sha256": null,
  "delta": null,
  "score": {
    "seed_start": 0,
    "n": 0,
    "mean_edge": null,
    "se": null
  },
  "paired": {
    "reference": "NP",
    "seed_start": 800000,
    "n": 0,
    "mean_diff": null,
    "se": null,
    "worst": []
  },
  "seconds_per_simulation": null,
  "validate_ok": false,
  "blocked": {
    "step": "sh scratch/setup.sh: compiler bootstrap, micromamba archive extraction",
    "error": "Setup exited with status 2. tar (grandchild): bzip2: Cannot exec: No such file or directory\ntar (grandchild): Error is not recoverable: exiting now\ntar: Child died with signal 13\ntar: Error is not recoverable: exiting now"
  },
  "citations": []
}