{"abstract":"Unrequested lock entries disappear from diagnostics.","category":"Dependency resolution","checks":7,"contract":"Report missing names, extra names, version mismatches, digest mismatches, and source mismatches as separate sorted lists. Only compare names present on both sides.","contract_signature":"wanted, locked","evaluation_group":"xt-lock-consistency","failed_approach":"The attempted repair substitutes sorted(set(wanted) - set(locked)). Fixture 2 still yields {'missing': ['a'], 'extra': ['a'], 'version': [], 'digest': [], 'source': []} instead of {'missing': ['a'], 'extra': [], 'version': [], 'digest': [], 'source': []}.","family":"xt-lock-consistency-stale-lock","id":"FA-9436","implementations":{"attempt":{"sha256":"d47966c3e9c0805ecda65c5d30b78a51f118b8de71080b05da71e10dd15311f5","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(wanted, locked):\n    common = set(wanted) & set(locked)\n    return {\n     'missing': sorted(set(wanted) - set(locked)),\n     'extra': sorted(set(wanted) - set(locked)),\n     'version': sorted(n for n in common if wanted[n][0] != locked[n][0]),\n     'digest': sorted(n for n in common if wanted[n][1] != locked[n][1]),\n     'source': sorted(n for n in common if wanted[n][2] != locked[n][2])\n    }\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve({}, {}), {'missing': [], 'extra': [], 'version': [], 'digest': [], 'source': []})\ncheck('fixture 2', solve({'a': ('1', 'd', 'public')}, {}), {'missing': ['a'], 'extra': [], 'version': [], 'digest': [], 'source': []})\ncheck('fixture 3', solve({}, {'b': ('1', 'd', 'public')}), {'missing': [], 'extra': ['b'], 'version': [], 'digest': [], 'source': []})\ncheck('fixture 4', solve({'a': ('1', 'd', 'public')}, {'a': ('2', 'd', 'public')}), {'missing': [], 'extra': [], 'version': ['a'], 'digest': [], 'source': []})\ncheck('fixture 5', solve({'a': ('1', 'd', 'public')}, {'a': ('1', 'e', 'public')}), {'missing': [], 'extra': [], 'version': [], 'digest': ['a'], 'source': []})\ncheck('fixture 6', solve({'a': ('1', 'd', 'public')}, {'a': ('1', 'd', 'private')}), {'missing': [], 'extra': [], 'version': [], 'digest': [], 'source': ['a']})\ncheck('fixture 7', solve({'a': ('1', 'd', 'public')}, {'a': ('1', 'd', 'public')}), {'missing': [], 'extra': [], 'version': [], 'digest': [], 'source': []})\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"3138464fab803025625ecb5e65ced673f2eb5477e70c22a21bc59e8d67d57c9f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(wanted, locked):\n    common = set(wanted) & set(locked)\n    return {\n     'missing': sorted(set(wanted) - set(locked)),\n     'extra': [],\n     'version': sorted(n for n in common if wanted[n][0] != locked[n][0]),\n     'digest': sorted(n for n in common if wanted[n][1] != locked[n][1]),\n     'source': sorted(n for n in common if wanted[n][2] != locked[n][2])\n    }\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve({}, {}), {'missing': [], 'extra': [], 'version': [], 'digest': [], 'source': []})\ncheck('fixture 2', solve({'a': ('1', 'd', 'public')}, {}), {'missing': ['a'], 'extra': [], 'version': [], 'digest': [], 'source': []})\ncheck('fixture 3', solve({}, {'b': ('1', 'd', 'public')}), {'missing': [], 'extra': ['b'], 'version': [], 'digest': [], 'source': []})\ncheck('fixture 4', solve({'a': ('1', 'd', 'public')}, {'a': ('2', 'd', 'public')}), {'missing': [], 'extra': [], 'version': ['a'], 'digest': [], 'source': []})\ncheck('fixture 5', solve({'a': ('1', 'd', 'public')}, {'a': ('1', 'e', 'public')}), {'missing': [], 'extra': [], 'version': [], 'digest': ['a'], 'source': []})\ncheck('fixture 6', solve({'a': ('1', 'd', 'public')}, {'a': ('1', 'd', 'private')}), {'missing': [], 'extra': [], 'version': [], 'digest': [], 'source': ['a']})\ncheck('fixture 7', solve({'a': ('1', 'd', 'public')}, {'a': ('1', 'd', 'public')}), {'missing': [], 'extra': [], 'version': [], 'digest': [], 'source': []})\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":" This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"xt-lock-consistency-stale-lock","generated_at":"2026-09-29T14:38:30.082684+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"An offline model of lockfile consistency report, suitable for testing build and release tooling without external services.","root_cause":"The implementation substitutes [] for sorted(set(locked) - set(wanted)), so unrequested lock entries disappear from diagnostics.","sha256":"b015bea9185a8226cab7c7671cef6af835b9a1a85b03039176d08dfb6c7553fc","title":"Lockfile consistency report: Unrequested lock entries disappear from diagnostics · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verified":true,"visibility":"public","verification":{"attempt":{"elapsed_ms":39.184,"exit_code":1,"observations":[{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 1","expected":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"passed":true},{"actual":{"digest":[],"extra":["a"],"missing":["a"],"source":[],"version":[]},"check":"fixture 2","expected":{"digest":[],"extra":[],"missing":["a"],"source":[],"version":[]},"passed":false},{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 3","expected":{"digest":[],"extra":["b"],"missing":[],"source":[],"version":[]},"passed":false},{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":["a"]},"check":"fixture 4","expected":{"digest":[],"extra":[],"missing":[],"source":[],"version":["a"]},"passed":true},{"actual":{"digest":["a"],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 5","expected":{"digest":["a"],"extra":[],"missing":[],"source":[],"version":[]},"passed":true},{"actual":{"digest":[],"extra":[],"missing":[],"source":["a"],"version":[]},"check":"fixture 6","expected":{"digest":[],"extra":[],"missing":[],"source":["a"],"version":[]},"passed":true},{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 7","expected":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": {\"missing\": [\"a\"], \"extra\": [\"a\"], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [\"a\"], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": false}, {\"check\": \"fixture 3\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [\"b\"], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": false}, {\"check\": \"fixture 4\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [\"a\"], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [\"a\"], \"digest\": [], \"source\": []}, \"passed\": true}, {\"check\": \"fixture 5\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [\"a\"], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [\"a\"], \"source\": []}, \"passed\": true}, {\"check\": \"fixture 6\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": [\"a\"]}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": [\"a\"]}, \"passed\": true}, {\"check\": \"fixture 7\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":36.809,"exit_code":1,"observations":[{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 1","expected":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"passed":true},{"actual":{"digest":[],"extra":[],"missing":["a"],"source":[],"version":[]},"check":"fixture 2","expected":{"digest":[],"extra":[],"missing":["a"],"source":[],"version":[]},"passed":true},{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 3","expected":{"digest":[],"extra":["b"],"missing":[],"source":[],"version":[]},"passed":false},{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":["a"]},"check":"fixture 4","expected":{"digest":[],"extra":[],"missing":[],"source":[],"version":["a"]},"passed":true},{"actual":{"digest":["a"],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 5","expected":{"digest":["a"],"extra":[],"missing":[],"source":[],"version":[]},"passed":true},{"actual":{"digest":[],"extra":[],"missing":[],"source":["a"],"version":[]},"check":"fixture 6","expected":{"digest":[],"extra":[],"missing":[],"source":["a"],"version":[]},"passed":true},{"actual":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"check":"fixture 7","expected":{"digest":[],"extra":[],"missing":[],"source":[],"version":[]},"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": {\"missing\": [\"a\"], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [\"a\"], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [\"b\"], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": false}, {\"check\": \"fixture 4\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [\"a\"], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [\"a\"], \"digest\": [], \"source\": []}, \"passed\": true}, {\"check\": \"fixture 5\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [\"a\"], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [\"a\"], \"source\": []}, \"passed\": true}, {\"check\": \"fixture 6\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": [\"a\"]}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": [\"a\"]}, \"passed\": true}, {\"check\": \"fixture 7\", \"actual\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"expected\": {\"missing\": [], \"extra\": [], \"version\": [], \"digest\": [], \"source\": []}, \"passed\": true}], \"passed\": false}\n"}},"member_only":{"stages":["fixed"],"fields":["implementations.fixed","verification.fixed","harness","repair"],"note":"The verified repair, its recorded checks, the repair description, and the scoring harness are available to members."}}