{"abstract":"Weekday-only schedules allow charging on Sunday and not on Friday.","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).","evaluation_group":"w2-ev_charging_session_scheduling-weekly-charging-windows","failed_approach":"Decoding today correctly but the previous day Sunday-based still misplaces overnight tails.","family":"w2-ev_charging_session_scheduling-weekly-charging-windows-weekday-bit-order","id":"FA-93151","implementations":{"attempt":{"sha256":"2e783ae0aaab7a43c9354aa231a7c7d143f9ae38c0f67e17ae90687fca03441c","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\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: weekday bit order', [[[84, 60, 360]], 1, 60], []],\n  ['regression: weekday bit order (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: weekday bit order', [[[53, 1080, 0]], 0, 1320], [0]],\n  ['regression: weekday bit order (partial repair)',\n   [[[113, 360, 60], [87, 420, 0], [65, 1380, 1380], [90, 1380, 1320]], 5, 420], [0, 3]],\n  ['control 1', [[[18, 60, 0], [118, 1080, 0], [124, 60, 360], [93, 1080, 60]], 4, 0], [3]],\n  ['control 2', [[[28, 1320, 1080], [123, 420, 1380], [9, 1380, 0]], 6, 359], []]],\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: weekday bit order', [[[28, 420, 60], [26, 0, 1320]], 1, 1380], []],\n  ['regression: weekday bit order (partial repair)',\n   [[[7, 0, 0], [6, 360, 1380], [33, 1080, 420], [76, 0, 1080]], 6, 59], [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: weekday bit order',\n   [[[33, 1080, 420], [17, 360, 360], [101, 1380, 1380], [116, 1380, 1080]], 2, 1379], [2]],\n  ['regression: weekday bit order (partial repair)',\n   [[[124, 0, 0], [53, 1320, 360], [89, 60, 60]], 4, 30], [0, 2]],\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: weekday bit order', [[[51, 360, 1080], [116, 1320, 420]], 0, 60], [1]],\n  ['regression: weekday bit order (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":"762a561cc10f98422ae16e4c662aa5babb057e1313fc217d421332ad645f5cab","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) % 7 & 1\n        yday = mask >> day & 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: weekday bit order', [[[84, 60, 360]], 1, 60], []],\n  ['regression: weekday bit order (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: weekday bit order', [[[53, 1080, 0]], 0, 1320], [0]],\n  ['regression: weekday bit order (partial repair)',\n   [[[113, 360, 60], [87, 420, 0], [65, 1380, 1380], [90, 1380, 1320]], 5, 420], [0, 3]],\n  ['control 1', [[[18, 60, 0], [118, 1080, 0], [124, 60, 360], [93, 1080, 60]], 4, 0], [3]],\n  ['control 2', [[[28, 1320, 1080], [123, 420, 1380], [9, 1380, 0]], 6, 359], []]],\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: weekday bit order', [[[28, 420, 60], [26, 0, 1320]], 1, 1380], []],\n  ['regression: weekday bit order (partial repair)',\n   [[[7, 0, 0], [6, 360, 1380], [33, 1080, 420], [76, 0, 1080]], 6, 59], [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: weekday bit order',\n   [[[33, 1080, 420], [17, 360, 360], [101, 1380, 1380], [116, 1380, 1080]], 2, 1379], [2]],\n  ['regression: weekday bit order (partial repair)',\n   [[[124, 0, 0], [53, 1320, 360], [89, 60, 60]], 4, 30], [0, 2]],\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: weekday bit order', [[[51, 360, 1080], [116, 1320, 420]], 0, 60], [1]],\n  ['regression: weekday bit order (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"},"fixed":{"sha256":"d83792262e906ef1acf4a277a1442e61d5b35260b4548c23271deeeaee647aac","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: weekday bit order', [[[84, 60, 360]], 1, 60], []],\n  ['regression: weekday bit order (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: weekday bit order', [[[53, 1080, 0]], 0, 1320], [0]],\n  ['regression: weekday bit order (partial repair)',\n   [[[113, 360, 60], [87, 420, 0], [65, 1380, 1380], [90, 1380, 1320]], 5, 420], [0, 3]],\n  ['control 1', [[[18, 60, 0], [118, 1080, 0], [124, 60, 360], [93, 1080, 60]], 4, 0], [3]],\n  ['control 2', [[[28, 1320, 1080], [123, 420, 1380], [9, 1380, 0]], 6, 359], []]],\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: weekday bit order', [[[28, 420, 60], [26, 0, 1320]], 1, 1380], []],\n  ['regression: weekday bit order (partial repair)',\n   [[[7, 0, 0], [6, 360, 1380], [33, 1080, 420], [76, 0, 1080]], 6, 59], [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: weekday bit order',\n   [[[33, 1080, 420], [17, 360, 360], [101, 1380, 1380], [116, 1380, 1080]], 2, 1379], [2]],\n  ['regression: weekday bit order (partial repair)',\n   [[[124, 0, 0], [53, 1320, 360], [89, 60, 60]], 4, 30], [0, 2]],\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: weekday bit order', [[[51, 360, 1080], [116, 1320, 420]], 0, 60], [1]],\n  ['regression: weekday bit order (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-weekday-bit-order","generated_at":"2026-09-29T14:51:52.468329+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.","repair":"Decode bit 0 as Monday for both the current and previous day.","root_cause":"The mask is decoded with bit 0 as Sunday instead of Monday.","sha256":"83379dd94fa684e2bb158a497dac493e23a1854020608583cbbbe025a649bac7","title":"Weekly recurring charging windows: weekday bit order · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":42.092,"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: weekday bit order","expected":[],"passed":true},{"actual":[],"check":"regression: weekday bit order (partial repair)","expected":[1],"passed":false},{"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: weekday bit order\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"regression: weekday bit order (partial repair)\", \"actual\": [], \"expected\": [1], \"passed\": false}, {\"check\": \"control 1\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"control 2\", \"actual\": [0, 2], \"expected\": [2], \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":41.755,"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":[],"check":"boundary: whole-day rule","expected":[0],"passed":false},{"actual":[0],"check":"regression: weekday bit order","expected":[],"passed":false},{"actual":[],"check":"regression: weekday bit order (partial repair)","expected":[1],"passed":false},{"actual":[],"check":"control 1","expected":[],"passed":true},{"actual":[0],"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\": [], \"expected\": [0], \"passed\": false}, {\"check\": \"regression: weekday bit order\", \"actual\": [0], \"expected\": [], \"passed\": false}, {\"check\": \"regression: weekday bit order (partial repair)\", \"actual\": [], \"expected\": [1], \"passed\": false}, {\"check\": \"control 1\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"control 2\", \"actual\": [0], \"expected\": [2], \"passed\": false}], \"passed\": false}\n"},"fixed":{"elapsed_ms":42.82,"exit_code":0,"observations":[{"actual":[0],"check":"boundary: Monday morning after Sunday night window","expected":[0],"passed":true},{"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: weekday bit order","expected":[],"passed":true},{"actual":[1],"check":"regression: weekday bit order (partial repair)","expected":[1],"passed":true},{"actual":[],"check":"control 1","expected":[],"passed":true},{"actual":[2],"check":"control 2","expected":[2],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"boundary: Monday morning after Sunday night window\", \"actual\": [0], \"expected\": [0], \"passed\": true}, {\"check\": \"boundary: same-day window end minute\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"boundary: whole-day rule\", \"actual\": [0], \"expected\": [0], \"passed\": true}, {\"check\": \"regression: weekday bit order\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"regression: weekday bit order (partial repair)\", \"actual\": [1], \"expected\": [1], \"passed\": true}, {\"check\": \"control 1\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"control 2\", \"actual\": [2], \"expected\": [2], \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}