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        "Ordinary Native and explicit DFS frontier are separate routes; no HiGHS solve is requested.",
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      "caveats": [
        "Fixed saved instances; no post-result selection, starts or reference feed.",
        "Ordinary Native and explicit DFS frontier are separate routes; no HiGHS solve is requested.",
        "No timing ratio unless every repetition completed and independently matched the optimum.",
        "Capped incumbents/bounds and failures remain in all denominators.",
        "Ordinary native node counts are unavailable through the frozen public API.",
        "External times include process and model construction; internal solve time is also retained.",
        "Three paired repetitions are a small diagnostic, not a statistical speed guarantee."
      ],
      "comparison_valid": true
    }
  },
  "validation": {
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      "passed": 70,
      "total": 70
    },
    "python": {
      "passed": 84,
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    },
    "affected_native_asan_ubsan": {
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      "leak_detection": false
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    "backend_disabled_new_boundary": {
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    "finite_oracle_budget_configurations": 1494,
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    "fast": {
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    "original_preserved_hashes": 2963
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  "evidence": {
    "source_commit": "5d533bcd4f66e9f065e24bac5ed7a7c976d715db",
    "headline": "Knapsack: a two-second timeout becomes a proved optimum in 10\u201313 ms.",
    "conclusion": "Every current run completed: 8/8 ordinary native models and 2/2 depth-first models, each repeated three times. Other families show small gains and slowdowns; this is a targeted improvement.",
    "rejected_pilot_note": "Generic objective-endpoint and DFS ordering was rejected after unchanged completion, a worse limited knapsack incumbent and more bin-packing nodes. The accepted study retains the same driver, runner, inputs, references, baseline and protocol. A separately tested macOS process-group cleanup fix changes the capture-helper hash between studies; both cohorts within the accepted study use that same final helper.",
    "files": {
      "report": {
        "path": "build/comparison-algorithms/final-results/report.json",
        "sha256": "7f794332f1e526041957543bc0881d13625f472424ff5a669dbd1aeec769cd0f"
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      "pilot_report": {
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        "sha256": "ca17582731be2677420a5b8ac92e9ce621ba865f4df4dcab5c36d1b5bc54b0de"
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      "pilot_summary": {
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        "sha256": "4965e0206b8fdc988c43788508c774ab885f9cecd8484047ebc5cb7352e3558f"
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  },
  "scope": "Adaptive fixed regression panel; no new problem-class support and no claim of a general speedup. Final runtime and source hashes are in the accepted report. Historical studies remain separate."
}