{"abstract":"The decoded time state disagrees with the explicit regression oracle for left_margin.","category":"Time representation","checks":13,"contract":"A timescale offset certificate declares coverage [start,end), publication instant, expiry instant, version and source identity. A query may use offset only inside coverage with a currently valid certificate and minimum accepted version. Query time and validation wall time are independent. Return status precedence identity/version/publication/expiry/coverage, admitted shifted coordinate, remaining validity and coverage margin.","contract_signature":"r","evaluation_group":"s3-time-time_table_trust_window","failed_approach":"The partial correction still substitutes r['start'] - r['query'] at the same fault site.","family":"s3-time_representation-time-table-trust-window-left-margin","id":"FA-18831","implementations":{"attempt":{"sha256":"4db05ca5cb0fe79d2e994868c2b450740680505283e55c41a93a566ea085154a","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nfrom fractions import Fraction\nN = 1\nobservations = []\ndef solve(r):\n    identity = r['source'] == r['trusted_source']\n    version = r['version'] >= r['minimum_version']\n    published = r['now'] >= r['published']\n    live = r['now'] < r['expires']\n    covered = r['start'] <= r['query'] < r['end']\n    status = 'identity' if not identity else ('version' if not version else ('future' if not published else ('expired' if not live else ('uncovered' if not covered else 'ok'))))\n    shifted = r['query'] + r['offset'] if status == 'ok' else None\n    remaining = max(0,r['expires'] - r['now'])\n    left_margin = r['start'] - r['query']\n    right_margin = r['end'] - r['query']\n    return [status,shifted,remaining,[left_margin,right_margin] if covered else None]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 100, 'offset': 7}), ['ok', 107, 10, [0, 100]])\ncheck('fixture 2', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 3, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['ok', 157, 5, [50, 50]])\ncheck('fixture 3', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 1, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['version', None, 5, [50, 50]])\ncheck('fixture 4', solve({'source': 'clock2', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['identity', None, 5, [50, 50]])\ncheck('fixture 5', solve({'source': 'other', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['identity', None, 5, [50, 50]])\ncheck('fixture 6', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 9, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['future', None, 11, [50, 50]])\ncheck('fixture 7', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 20, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['expired', None, 0, [50, 50]])\ncheck('fixture 8', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 21, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['expired', None, 0, [50, 50]])\ncheck('fixture 9', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 200, 'offset': 7}), ['uncovered', None, 5, None])\ncheck('fixture 10', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 99, 'offset': 7}), ['uncovered', None, 5, None])\ncheck('fixture 11', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 199, 'offset': 7}), ['ok', 206, 5, [99, 1]])\ncheck('fixture 12', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 100, 'offset': 7}), ['ok', 107, 5, [0, 100]])\nvariant = [({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 101, 'offset': 7}, ['ok', 108, 10, [1, 99]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 102, 'offset': 7}, ['ok', 109, 10, [2, 98]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 103, 'offset': 7}, ['ok', 110, 10, [3, 97]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 104, 'offset': 7}, ['ok', 111, 10, [4, 96]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 105, 'offset': 7}, ['ok', 112, 10, [5, 95]])]\ncheck(\"variant capture\", solve(variant[N-1][0]), variant[N-1][1])\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":"d39d30baa1c0fd02a85fb0d81a8718f958881c8b2baefe20baa43a6932ca5868","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nfrom fractions import Fraction\nN = 1\nobservations = []\ndef solve(r):\n    identity = r['source'] == r['trusted_source']\n    version = r['version'] >= r['minimum_version']\n    published = r['now'] >= r['published']\n    live = r['now'] < r['expires']\n    covered = r['start'] <= r['query'] < r['end']\n    status = 'identity' if not identity else ('version' if not version else ('future' if not published else ('expired' if not live else ('uncovered' if not covered else 'ok'))))\n    shifted = r['query'] + r['offset'] if status == 'ok' else None\n    remaining = max(0,r['expires'] - r['now'])\n    left_margin = r['query'] - r['published']\n    right_margin = r['end'] - r['query']\n    return [status,shifted,remaining,[left_margin,right_margin] if covered else None]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 100, 'offset': 7}), ['ok', 107, 10, [0, 100]])\ncheck('fixture 2', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 3, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['ok', 157, 5, [50, 50]])\ncheck('fixture 3', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 1, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['version', None, 5, [50, 50]])\ncheck('fixture 4', solve({'source': 'clock2', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['identity', None, 5, [50, 50]])\ncheck('fixture 5', solve({'source': 'other', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['identity', None, 5, [50, 50]])\ncheck('fixture 6', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 9, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['future', None, 11, [50, 50]])\ncheck('fixture 7', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 20, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['expired', None, 0, [50, 50]])\ncheck('fixture 8', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 21, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 150, 'offset': 7}), ['expired', None, 0, [50, 50]])\ncheck('fixture 9', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 200, 'offset': 7}), ['uncovered', None, 5, None])\ncheck('fixture 10', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 99, 'offset': 7}), ['uncovered', None, 5, None])\ncheck('fixture 11', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 199, 'offset': 7}), ['ok', 206, 5, [99, 1]])\ncheck('fixture 12', solve({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 15, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 100, 'offset': 7}), ['ok', 107, 5, [0, 100]])\nvariant = [({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 101, 'offset': 7}, ['ok', 108, 10, [1, 99]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 102, 'offset': 7}, ['ok', 109, 10, [2, 98]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 103, 'offset': 7}, ['ok', 110, 10, [3, 97]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 104, 'offset': 7}, ['ok', 111, 10, [4, 96]]), ({'source': 'clock', 'trusted_source': 'clock', 'version': 2, 'minimum_version': 2, 'now': 10, 'published': 10, 'expires': 20, 'start': 100, 'end': 200, 'query': 105, 'offset': 7}, ['ok', 112, 10, [5, 95]])]\ncheck(\"variant capture\", solve(variant[N-1][0]), variant[N-1][1])\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":"Deterministic integer reference model with stipulated units and policies; not a complete clock, wire standard or platform implementation. 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":"s3-time_representation-time-table-trust-window-left-margin","generated_at":"2026-09-29T14:40:01.667778+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Clock transfer and timestamp consumers require preserved coordinate, phase, validity and elapsed-time semantics.","root_cause":"Coverage margin references publication rather than effective table segment.","sha256":"ba720a6ad7875ed4962ffa83f2fd963b7d80524791c571e0df29f042a2ef6ffe","title":"Coverage margin references publication rather than effective table segment · 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":46.927,"exit_code":1,"observations":[{"actual":["ok",107,10,[0,100]],"check":"fixture 1","expected":["ok",107,10,[0,100]],"passed":true},{"actual":["ok",157,5,[-50,50]],"check":"fixture 2","expected":["ok",157,5,[50,50]],"passed":false},{"actual":["version",null,5,[-50,50]],"check":"fixture 3","expected":["version",null,5,[50,50]],"passed":false},{"actual":["identity",null,5,[-50,50]],"check":"fixture 4","expected":["identity",null,5,[50,50]],"passed":false},{"actual":["identity",null,5,[-50,50]],"check":"fixture 5","expected":["identity",null,5,[50,50]],"passed":false},{"actual":["future",null,11,[-50,50]],"check":"fixture 6","expected":["future",null,11,[50,50]],"passed":false},{"actual":["expired",null,0,[-50,50]],"check":"fixture 7","expected":["expired",null,0,[50,50]],"passed":false},{"actual":["expired",null,0,[-50,50]],"check":"fixture 8","expected":["expired",null,0,[50,50]],"passed":false},{"actual":["uncovered",null,5,null],"check":"fixture 9","expected":["uncovered",null,5,null],"passed":true},{"actual":["uncovered",null,5,null],"check":"fixture 10","expected":["uncovered",null,5,null],"passed":true},{"actual":["ok",206,5,[-99,1]],"check":"fixture 11","expected":["ok",206,5,[99,1]],"passed":false},{"actual":["ok",107,5,[0,100]],"check":"fixture 12","expected":["ok",107,5,[0,100]],"passed":true},{"actual":["ok",108,10,[-1,99]],"check":"variant capture","expected":["ok",108,10,[1,99]],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": [\"ok\", 107, 10, [0, 100]], \"expected\": [\"ok\", 107, 10, [0, 100]], \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": [\"ok\", 157, 5, [-50, 50]], \"expected\": [\"ok\", 157, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 3\", \"actual\": [\"version\", null, 5, [-50, 50]], \"expected\": [\"version\", null, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 4\", \"actual\": [\"identity\", null, 5, [-50, 50]], \"expected\": [\"identity\", null, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 5\", \"actual\": [\"identity\", null, 5, [-50, 50]], \"expected\": [\"identity\", null, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 6\", \"actual\": [\"future\", null, 11, [-50, 50]], \"expected\": [\"future\", null, 11, [50, 50]], \"passed\": false}, {\"check\": \"fixture 7\", \"actual\": [\"expired\", null, 0, [-50, 50]], \"expected\": [\"expired\", null, 0, [50, 50]], \"passed\": false}, {\"check\": \"fixture 8\", \"actual\": [\"expired\", null, 0, [-50, 50]], \"expected\": [\"expired\", null, 0, [50, 50]], \"passed\": false}, {\"check\": \"fixture 9\", \"actual\": [\"uncovered\", null, 5, null], \"expected\": [\"uncovered\", null, 5, null], \"passed\": true}, {\"check\": \"fixture 10\", \"actual\": [\"uncovered\", null, 5, null], \"expected\": [\"uncovered\", null, 5, null], \"passed\": true}, {\"check\": \"fixture 11\", \"actual\": [\"ok\", 206, 5, [-99, 1]], \"expected\": [\"ok\", 206, 5, [99, 1]], \"passed\": false}, {\"check\": \"fixture 12\", \"actual\": [\"ok\", 107, 5, [0, 100]], \"expected\": [\"ok\", 107, 5, [0, 100]], \"passed\": true}, {\"check\": \"variant capture\", \"actual\": [\"ok\", 108, 10, [-1, 99]], \"expected\": [\"ok\", 108, 10, [1, 99]], \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":47.126,"exit_code":1,"observations":[{"actual":["ok",107,10,[90,100]],"check":"fixture 1","expected":["ok",107,10,[0,100]],"passed":false},{"actual":["ok",157,5,[140,50]],"check":"fixture 2","expected":["ok",157,5,[50,50]],"passed":false},{"actual":["version",null,5,[140,50]],"check":"fixture 3","expected":["version",null,5,[50,50]],"passed":false},{"actual":["identity",null,5,[140,50]],"check":"fixture 4","expected":["identity",null,5,[50,50]],"passed":false},{"actual":["identity",null,5,[140,50]],"check":"fixture 5","expected":["identity",null,5,[50,50]],"passed":false},{"actual":["future",null,11,[140,50]],"check":"fixture 6","expected":["future",null,11,[50,50]],"passed":false},{"actual":["expired",null,0,[140,50]],"check":"fixture 7","expected":["expired",null,0,[50,50]],"passed":false},{"actual":["expired",null,0,[140,50]],"check":"fixture 8","expected":["expired",null,0,[50,50]],"passed":false},{"actual":["uncovered",null,5,null],"check":"fixture 9","expected":["uncovered",null,5,null],"passed":true},{"actual":["uncovered",null,5,null],"check":"fixture 10","expected":["uncovered",null,5,null],"passed":true},{"actual":["ok",206,5,[189,1]],"check":"fixture 11","expected":["ok",206,5,[99,1]],"passed":false},{"actual":["ok",107,5,[90,100]],"check":"fixture 12","expected":["ok",107,5,[0,100]],"passed":false},{"actual":["ok",108,10,[91,99]],"check":"variant capture","expected":["ok",108,10,[1,99]],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": [\"ok\", 107, 10, [90, 100]], \"expected\": [\"ok\", 107, 10, [0, 100]], \"passed\": false}, {\"check\": \"fixture 2\", \"actual\": [\"ok\", 157, 5, [140, 50]], \"expected\": [\"ok\", 157, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 3\", \"actual\": [\"version\", null, 5, [140, 50]], \"expected\": [\"version\", null, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 4\", \"actual\": [\"identity\", null, 5, [140, 50]], \"expected\": [\"identity\", null, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 5\", \"actual\": [\"identity\", null, 5, [140, 50]], \"expected\": [\"identity\", null, 5, [50, 50]], \"passed\": false}, {\"check\": \"fixture 6\", \"actual\": [\"future\", null, 11, [140, 50]], \"expected\": [\"future\", null, 11, [50, 50]], \"passed\": false}, {\"check\": \"fixture 7\", \"actual\": [\"expired\", null, 0, [140, 50]], \"expected\": [\"expired\", null, 0, [50, 50]], \"passed\": false}, {\"check\": \"fixture 8\", \"actual\": [\"expired\", null, 0, [140, 50]], \"expected\": [\"expired\", null, 0, [50, 50]], \"passed\": false}, {\"check\": \"fixture 9\", \"actual\": [\"uncovered\", null, 5, null], \"expected\": [\"uncovered\", null, 5, null], \"passed\": true}, {\"check\": \"fixture 10\", \"actual\": [\"uncovered\", null, 5, null], \"expected\": [\"uncovered\", null, 5, null], \"passed\": true}, {\"check\": \"fixture 11\", \"actual\": [\"ok\", 206, 5, [189, 1]], \"expected\": [\"ok\", 206, 5, [99, 1]], \"passed\": false}, {\"check\": \"fixture 12\", \"actual\": [\"ok\", 107, 5, [90, 100]], \"expected\": [\"ok\", 107, 5, [0, 100]], \"passed\": false}, {\"check\": \"variant capture\", \"actual\": [\"ok\", 108, 10, [91, 99]], \"expected\": [\"ok\", 108, 10, [1, 99]], \"passed\": false}], \"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."}}