{"abstract":"Airport parking weekly cap returns a wrong result when the remainder is added outside the weekly cap.","category":"Toll and parking fee computation","checks":8,"contract":"Input {minutes, daily, weekly, hourly}. Full 1440-minute days and a remainder; the remainder costs started hours * hourly capped at daily. Each full 7-day week costs weekly; the leftover full days plus the remainder cost days*daily + remainder charge, capped at weekly.","contract_signature":"x","evaluation_group":"w2-toll_and_parking_fee_computation-airport-weekly","failed_approach":"Removing the cap overcharges leftover periods longer than a week-equivalent.","family":"w2-toll_and_parking_fee_computation-airport-weekly-week-cap-scope","id":"FA-68791","implementations":{"attempt":{"sha256":"045921f39ccfe676fe016e25e72254ececb1f423ea2ca74e08b9019ef13c404f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    m = x['minutes']\n    full, r = divmod(m, 1440)\n    part = min(x['daily'], -(-r // 60) * x['hourly'])\n    weeks, days = divmod(full, 7)\n    return weeks * x['weekly'] + days * x['daily'] + part\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[({'minutes': 1623, 'daily': 2800, 'weekly': 9000, 'hourly': 400}, 4400), ({'minutes': 1269, 'daily': 2800, 'weekly': 13000, 'hourly': 600}, 2800), ({'minutes': 1781, 'daily': 2800, 'weekly': 13000, 'hourly': 500}, 5600), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 7567, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 11000), ({'minutes': 28537, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 33000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 10634, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 13200)], [({'minutes': 359, 'daily': 2200, 'weekly': 13000, 'hourly': 500}, 2200), ({'minutes': 1483, 'daily': 1800, 'weekly': 11000, 'hourly': 400}, 2200), ({'minutes': 16771, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 22000), ({'minutes': 6967, 'daily': 2800, 'weekly': 11000, 'hourly': 600}, 11000), ({'minutes': 14550, 'daily': 2800, 'weekly': 13000, 'hourly': 500}, 22900), ({'minutes': 545, 'daily': 1800, 'weekly': 13000, 'hourly': 600}, 1800), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000)], [({'minutes': 7709, 'daily': 2200, 'weekly': 9000, 'hourly': 500}, 9000), ({'minutes': 2470, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 5600), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 341, 'daily': 2800, 'weekly': 9000, 'hourly': 400}, 2400), ({'minutes': 2201, 'daily': 1800, 'weekly': 11000, 'hourly': 400}, 3600), ({'minutes': 28168, 'daily': 1800, 'weekly': 9000, 'hourly': 400}, 27000), ({'minutes': 16961, 'daily': 1800, 'weekly': 11000, 'hourly': 600}, 20000)], [({'minutes': 18720, 'daily': 2200, 'weekly': 11000, 'hourly': 600}, 22000), ({'minutes': 18720, 'daily': 1800, 'weekly': 11000, 'hourly': 400}, 21800), ({'minutes': 21432, 'daily': 1800, 'weekly': 9000, 'hourly': 500}, 19800), ({'minutes': 17123, 'daily': 2200, 'weekly': 9000, 'hourly': 600}, 18000), ({'minutes': 19758, 'daily': 2200, 'weekly': 9000, 'hourly': 400}, 18000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 23040, 'daily': 2800, 'weekly': 13000, 'hourly': 400}, 31600), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000)], [({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 18720, 'daily': 2200, 'weekly': 9000, 'hourly': 400}, 18000), ({'minutes': 1239, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 2200), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 27681, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 33000), ({'minutes': 27719, 'daily': 2200, 'weekly': 13000, 'hourly': 500}, 39000), ({'minutes': 2181, 'daily': 2200, 'weekly': 13000, 'hourly': 500}, 4400), ({'minutes': 1371, 'daily': 1800, 'weekly': 11000, 'hourly': 500}, 1800)]]\nfor i, (args, expected) in enumerate(fixtures[N-1]):\n    check('fee oracle' + ' %d' % i, solve(args), expected)\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":"828f7bd6bff2afe2ac3f43484efb8f878907cf243c41a58f19deacf0a70b79a2","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    m = x['minutes']\n    full, r = divmod(m, 1440)\n    part = min(x['daily'], -(-r // 60) * x['hourly'])\n    weeks, days = divmod(full, 7)\n    return weeks * x['weekly'] + min(x['weekly'], days * x['daily']) + part\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[({'minutes': 1623, 'daily': 2800, 'weekly': 9000, 'hourly': 400}, 4400), ({'minutes': 1269, 'daily': 2800, 'weekly': 13000, 'hourly': 600}, 2800), ({'minutes': 1781, 'daily': 2800, 'weekly': 13000, 'hourly': 500}, 5600), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 7567, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 11000), ({'minutes': 28537, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 33000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 10634, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 13200)], [({'minutes': 359, 'daily': 2200, 'weekly': 13000, 'hourly': 500}, 2200), ({'minutes': 1483, 'daily': 1800, 'weekly': 11000, 'hourly': 400}, 2200), ({'minutes': 16771, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 22000), ({'minutes': 6967, 'daily': 2800, 'weekly': 11000, 'hourly': 600}, 11000), ({'minutes': 14550, 'daily': 2800, 'weekly': 13000, 'hourly': 500}, 22900), ({'minutes': 545, 'daily': 1800, 'weekly': 13000, 'hourly': 600}, 1800), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000)], [({'minutes': 7709, 'daily': 2200, 'weekly': 9000, 'hourly': 500}, 9000), ({'minutes': 2470, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 5600), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 341, 'daily': 2800, 'weekly': 9000, 'hourly': 400}, 2400), ({'minutes': 2201, 'daily': 1800, 'weekly': 11000, 'hourly': 400}, 3600), ({'minutes': 28168, 'daily': 1800, 'weekly': 9000, 'hourly': 400}, 27000), ({'minutes': 16961, 'daily': 1800, 'weekly': 11000, 'hourly': 600}, 20000)], [({'minutes': 18720, 'daily': 2200, 'weekly': 11000, 'hourly': 600}, 22000), ({'minutes': 18720, 'daily': 1800, 'weekly': 11000, 'hourly': 400}, 21800), ({'minutes': 21432, 'daily': 1800, 'weekly': 9000, 'hourly': 500}, 19800), ({'minutes': 17123, 'daily': 2200, 'weekly': 9000, 'hourly': 600}, 18000), ({'minutes': 19758, 'daily': 2200, 'weekly': 9000, 'hourly': 400}, 18000), ({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 23040, 'daily': 2800, 'weekly': 13000, 'hourly': 400}, 31600), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000)], [({'minutes': 8000, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 11000), ({'minutes': 18720, 'daily': 2200, 'weekly': 9000, 'hourly': 400}, 18000), ({'minutes': 1239, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 2200), ({'minutes': 10180, 'daily': 2200, 'weekly': 11000, 'hourly': 500}, 12000), ({'minutes': 27681, 'daily': 2800, 'weekly': 11000, 'hourly': 400}, 33000), ({'minutes': 27719, 'daily': 2200, 'weekly': 13000, 'hourly': 500}, 39000), ({'minutes': 2181, 'daily': 2200, 'weekly': 13000, 'hourly': 500}, 4400), ({'minutes': 1371, 'daily': 1800, 'weekly': 11000, 'hourly': 500}, 1800)]]\nfor i, (args, expected) in enumerate(fixtures[N-1]):\n    check('fee oracle' + ' %d' % i, solve(args), expected)\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":"A deterministic, bounded toy model with a stipulated contract; it makes no claim of conformance to any agency manual or standard. 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":"w2-toll_and_parking_fee_computation-airport-weekly-week-cap-scope","generated_at":"2026-09-29T14:48:05.501904+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Fee engines bill customers in integer cents; a wrong boundary, rounding stage or cap scope silently over- or under-charges.","root_cause":"Six days plus a partial day can exceed the weekly rate.","sha256":"850f11e9485b339bcc4046d130132ba2c161622c87223d621b9436c1a6cad491","title":"Airport parking weekly cap: the remainder is added outside the weekly cap · 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":39.404,"exit_code":1,"observations":[{"actual":4400,"check":"fee oracle 0","expected":4400,"passed":true},{"actual":2800,"check":"fee oracle 1","expected":2800,"passed":true},{"actual":5600,"check":"fee oracle 2","expected":5600,"passed":true},{"actual":12000,"check":"fee oracle 3","expected":12000,"passed":true},{"actual":16800,"check":"fee oracle 4","expected":11000,"passed":false},{"actual":38800,"check":"fee oracle 5","expected":33000,"passed":false},{"actual":13200,"check":"fee oracle 6","expected":11000,"passed":false},{"actual":13200,"check":"fee oracle 7","expected":13200,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fee oracle 0\", \"actual\": 4400, \"expected\": 4400, \"passed\": true}, {\"check\": \"fee oracle 1\", \"actual\": 2800, \"expected\": 2800, \"passed\": true}, {\"check\": \"fee oracle 2\", \"actual\": 5600, \"expected\": 5600, \"passed\": true}, {\"check\": \"fee oracle 3\", \"actual\": 12000, \"expected\": 12000, \"passed\": true}, {\"check\": \"fee oracle 4\", \"actual\": 16800, \"expected\": 11000, \"passed\": false}, {\"check\": \"fee oracle 5\", \"actual\": 38800, \"expected\": 33000, \"passed\": false}, {\"check\": \"fee oracle 6\", \"actual\": 13200, \"expected\": 11000, \"passed\": false}, {\"check\": \"fee oracle 7\", \"actual\": 13200, \"expected\": 13200, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":38.045,"exit_code":1,"observations":[{"actual":4400,"check":"fee oracle 0","expected":4400,"passed":true},{"actual":2800,"check":"fee oracle 1","expected":2800,"passed":true},{"actual":5600,"check":"fee oracle 2","expected":5600,"passed":true},{"actual":12000,"check":"fee oracle 3","expected":12000,"passed":true},{"actual":13800,"check":"fee oracle 4","expected":11000,"passed":false},{"actual":35800,"check":"fee oracle 5","expected":33000,"passed":false},{"actual":13200,"check":"fee oracle 6","expected":11000,"passed":false},{"actual":13200,"check":"fee oracle 7","expected":13200,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fee oracle 0\", \"actual\": 4400, \"expected\": 4400, \"passed\": true}, {\"check\": \"fee oracle 1\", \"actual\": 2800, \"expected\": 2800, \"passed\": true}, {\"check\": \"fee oracle 2\", \"actual\": 5600, \"expected\": 5600, \"passed\": true}, {\"check\": \"fee oracle 3\", \"actual\": 12000, \"expected\": 12000, \"passed\": true}, {\"check\": \"fee oracle 4\", \"actual\": 13800, \"expected\": 11000, \"passed\": false}, {\"check\": \"fee oracle 5\", \"actual\": 35800, \"expected\": 33000, \"passed\": false}, {\"check\": \"fee oracle 6\", \"actual\": 13200, \"expected\": 11000, \"passed\": false}, {\"check\": \"fee oracle 7\", \"actual\": 13200, \"expected\": 13200, \"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."}}