{"abstract":"Overnight windows continue into the wrong morning.","category":"EV charging session scheduling","checks":7,"contract":"rules are [day_mask, start, end] with bit 0 = Monday .. bit 6 = Sunday. start < end is a same-day window [start, end); start == end means the whole selected day; start > end crosses midnight and belongs to its start day (Sunday continues into Monday). Return the sorted indices of rules allowing charging at (day 0..6, minute 0..1439).","contract_signature":"rules, day, minute","evaluation_group":"w2-ev_charging_session_scheduling-weekly-charging-windows","failed_approach":"Clamping at Monday instead of wrapping breaks Sunday night windows.","family":"w2-ev_charging_session_scheduling-weekly-charging-windows-previous-weekday-wrap","id":"FA-93136","implementations":{"attempt":{"sha256":"d05fa09e9041f2d5c09d75d0701bae9d003128f70bc4c3c27d585c2f8e68420f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(rules, day, minute):\n    hits = []\n    for i, (mask, s, e) in enumerate(rules):\n        today = mask >> day & 1\n        yday = mask >> max(day - 1, 0) & 1\n        if s == e:\n            if today:\n                hits.append(i)\n        elif s < e:\n            if today and s <= minute < e:\n                hits.append(i)\n        elif (today and minute >= s) or (yday and minute < e):\n            hits.append(i)\n    return hits\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[50, 1080, 60], [92, 0, 420], [118, 1080, 1320]], 0, 30],\n   []],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[72, 0, 1380], [114, 1380, 1080], [82, 1320, 60], [68, 1080, 1380]], 0, 900], [1]],\n  ['control 1', [[[75, 1380, 360]], 0, 1379], []],\n  ['control 2', [[[26, 1380, 420], [118, 360, 0], [104, 1080, 1080]], 3, 0], [2]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap',\n   [[[18, 60, 0], [118, 1080, 0], [124, 60, 360], [93, 1080, 60]], 4, 0], [3]],\n  ['regression: previous weekday wrap (partial repair)', [[[19, 1380, 1080]], 0, 61], []],\n  ['control 1', [[[28, 1320, 1080], [123, 420, 1380], [9, 1380, 0]], 6, 359], []],\n  ['control 2', [[[98, 1080, 0], [121, 1380, 360], [62, 360, 0], [52, 1080, 0]], 2, 1079], [2]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[4, 1380, 1320], [39, 0, 420], [94, 60, 1380]], 1, 900],\n   [2]],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[67, 1380, 420], [25, 60, 0], [87, 1320, 360], [82, 1320, 420]], 0, 359], [0, 1, 2, 3]],\n  ['control 1', [[[103, 0, 360], [65, 360, 1380], [37, 1080, 1080]], 4, 60], []],\n  ['control 2', [[[52, 420, 1320], [97, 1080, 360]], 0, 0], [1]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[124, 0, 0], [53, 1320, 360], [89, 60, 60]], 4, 30],\n   [0, 2]],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[67, 1380, 420], [25, 60, 0], [87, 1320, 360], [82, 1320, 420]], 0, 359], [0, 1, 2, 3]],\n  ['control 1', [[[105, 420, 360], [31, 1380, 1320], [47, 1080, 1320]], 4, 60], [0, 1]],\n  ['control 2', [[[59, 360, 60], [45, 420, 60]], 5, 360], [0]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[51, 360, 1080], [116, 1320, 420]], 0, 60], [1]],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[68, 1320, 360], [42, 360, 360], [95, 0, 360], [40, 1380, 60]], 0, 359], [0, 2]],\n  ['control 1', [[[51, 360, 60], [78, 1080, 1080], [25, 1320, 360], [11, 360, 0]], 2, 1380], [1]],\n  ['control 2', [[[16, 1380, 0]], 1, 360], []]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, 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":"6545f69c6db9ade329ff3d44f6519f9e748b447d2c007a0933a80b1924659f73","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(rules, day, minute):\n    hits = []\n    for i, (mask, s, e) in enumerate(rules):\n        today = mask >> day & 1\n        yday = mask >> (day + 1) % 7 & 1\n        if s == e:\n            if today:\n                hits.append(i)\n        elif s < e:\n            if today and s <= minute < e:\n                hits.append(i)\n        elif (today and minute >= s) or (yday and minute < e):\n            hits.append(i)\n    return hits\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[50, 1080, 60], [92, 0, 420], [118, 1080, 1320]], 0, 30],\n   []],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[72, 0, 1380], [114, 1380, 1080], [82, 1320, 60], [68, 1080, 1380]], 0, 900], [1]],\n  ['control 1', [[[75, 1380, 360]], 0, 1379], []],\n  ['control 2', [[[26, 1380, 420], [118, 360, 0], [104, 1080, 1080]], 3, 0], [2]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap',\n   [[[18, 60, 0], [118, 1080, 0], [124, 60, 360], [93, 1080, 60]], 4, 0], [3]],\n  ['regression: previous weekday wrap (partial repair)', [[[19, 1380, 1080]], 0, 61], []],\n  ['control 1', [[[28, 1320, 1080], [123, 420, 1380], [9, 1380, 0]], 6, 359], []],\n  ['control 2', [[[98, 1080, 0], [121, 1380, 360], [62, 360, 0], [52, 1080, 0]], 2, 1079], [2]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[4, 1380, 1320], [39, 0, 420], [94, 60, 1380]], 1, 900],\n   [2]],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[67, 1380, 420], [25, 60, 0], [87, 1320, 360], [82, 1320, 420]], 0, 359], [0, 1, 2, 3]],\n  ['control 1', [[[103, 0, 360], [65, 360, 1380], [37, 1080, 1080]], 4, 60], []],\n  ['control 2', [[[52, 420, 1320], [97, 1080, 360]], 0, 0], [1]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[124, 0, 0], [53, 1320, 360], [89, 60, 60]], 4, 30],\n   [0, 2]],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[67, 1380, 420], [25, 60, 0], [87, 1320, 360], [82, 1320, 420]], 0, 359], [0, 1, 2, 3]],\n  ['control 1', [[[105, 420, 360], [31, 1380, 1320], [47, 1080, 1320]], 4, 60], [0, 1]],\n  ['control 2', [[[59, 360, 60], [45, 420, 60]], 5, 360], [0]]],\n [['boundary: Monday morning after Sunday night window', [[[64, 1320, 360]], 0, 100], [0]],\n  ['boundary: same-day window end minute', [[[127, 60, 360]], 3, 360], []],\n  ['boundary: whole-day rule', [[[4, 420, 420]], 2, 5], [0]],\n  ['regression: previous weekday wrap', [[[51, 360, 1080], [116, 1320, 420]], 0, 60], [1]],\n  ['regression: previous weekday wrap (partial repair)',\n   [[[68, 1320, 360], [42, 360, 360], [95, 0, 360], [40, 1380, 60]], 0, 359], [0, 2]],\n  ['control 1', [[[51, 360, 60], [78, 1080, 1080], [25, 1320, 360], [11, 360, 0]], 2, 1380], [1]],\n  ['control 2', [[[16, 1380, 0]], 1, 360], []]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, 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":"Deterministic stipulated toy contract for teaching; no claim of conformance with any standard, vendor protocol or production controller. 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-ev_charging_session_scheduling-weekly-charging-windows-previous-weekday-wrap","generated_at":"2026-09-29T14:51:52.339220+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Depot, workplace and public EV chargers schedule sessions against prices, circuit limits and departure deadlines; a wrong decision silently strands a driver or overloads a feeder.","root_cause":"The after-midnight tail is looked up on the following weekday instead of the preceding one.","sha256":"632c352e2d8a1e8fb7a26f13d7ffe7b67795bfd42f89ec19deed98c270d9ac82","title":"Weekly recurring charging windows: previous weekday wrap · 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":40.423,"exit_code":1,"observations":[{"actual":[],"check":"boundary: Monday morning after Sunday night window","expected":[0],"passed":false},{"actual":[],"check":"boundary: same-day window end minute","expected":[],"passed":true},{"actual":[0],"check":"boundary: whole-day rule","expected":[0],"passed":true},{"actual":[],"check":"regression: previous weekday wrap","expected":[],"passed":true},{"actual":[],"check":"regression: previous weekday wrap (partial repair)","expected":[1],"passed":false},{"actual":[],"check":"control 1","expected":[],"passed":true},{"actual":[2],"check":"control 2","expected":[2],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"boundary: Monday morning after Sunday night window\", \"actual\": [], \"expected\": [0], \"passed\": false}, {\"check\": \"boundary: same-day window end minute\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"boundary: whole-day rule\", \"actual\": [0], \"expected\": [0], \"passed\": true}, {\"check\": \"regression: previous weekday wrap\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"regression: previous weekday wrap (partial repair)\", \"actual\": [], \"expected\": [1], \"passed\": false}, {\"check\": \"control 1\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"control 2\", \"actual\": [2], \"expected\": [2], \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":47.254,"exit_code":1,"observations":[{"actual":[],"check":"boundary: Monday morning after Sunday night window","expected":[0],"passed":false},{"actual":[],"check":"boundary: same-day window end minute","expected":[],"passed":true},{"actual":[0],"check":"boundary: whole-day rule","expected":[0],"passed":true},{"actual":[0],"check":"regression: previous weekday wrap","expected":[],"passed":false},{"actual":[1],"check":"regression: previous weekday wrap (partial repair)","expected":[1],"passed":true},{"actual":[],"check":"control 1","expected":[],"passed":true},{"actual":[0,2],"check":"control 2","expected":[2],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"boundary: Monday morning after Sunday night window\", \"actual\": [], \"expected\": [0], \"passed\": false}, {\"check\": \"boundary: same-day window end minute\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"boundary: whole-day rule\", \"actual\": [0], \"expected\": [0], \"passed\": true}, {\"check\": \"regression: previous weekday wrap\", \"actual\": [0], \"expected\": [], \"passed\": false}, {\"check\": \"regression: previous weekday wrap (partial repair)\", \"actual\": [1], \"expected\": [1], \"passed\": true}, {\"check\": \"control 1\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"control 2\", \"actual\": [0, 2], \"expected\": [2], \"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."}}