{"abstract":"A shift that starts the minute the previous one ends is reported as an overlap instead of a short rest.","category":"Shift rostering labor rules","checks":8,"contract":"Input shifts as [worker, start, end] absolute minutes and a minimum rest \"HH:MM\". For each worker, walk shifts by start time, comparing each start with the latest end seen so far (and that shift index): a negative gap is an overlap, a gap below the minimum rest is short_rest; exactly the minimum is compliant. Return [worker, earlier index, later index, kind] rows ordered by worker then start.","contract_signature":"shifts, min_rest","evaluation_group":"w2-shift-rostering-labor-rules-minimum-rest-between-shifts","failed_approach":"Requiring the later shift to also end after the previous end misclassifies nested shifts as short rest.","family":"w2-shift-rostering-labor-rules-minimum-rest-between-shifts-overlap-containment-only","id":"FA-93856","implementations":{"attempt":{"sha256":"c72fc15b8da5ee454da8153eaa6ebf48d3e94c1712338081b9634b2b371c8a9f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(shifts, min_rest):\n    h, m = min_rest.split(':')\n    limit = int(h) * 60 + int(m)\n    by = {}\n    for i, (w, s, e) in enumerate(shifts):\n        by.setdefault(w, []).append((s, e, i))\n    out = []\n    for w in sorted(by):\n        seq = sorted(by[w])\n        prev = None\n        for s, e, i in seq:\n            if prev is not None:\n                pe, pi = prev\n                gap = s - pe\n                if s < pe and e > pe:\n                    out.append([w, pi, i, 'overlap'])\n                elif gap < limit:\n                    out.append([w, pi, i, 'short_rest'])\n            if prev is None or e > prev[0]:\n                prev = (e, i)\n    return out\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: overlap containment only 1', [[['ana', 0, 480], ['ana', 480, 960], ['ben', 0, 480]], '10:30'],\n   [['ana', 0, 1, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['ana', 3831, 4191], ['ana', 4791, 5391], ['chi', 5600, 5840], ['chi', 2000, 2720], ['chi', 6471, 6711],\n     ['ana', 2480, 3200], ['ana', 2000, 2480], ['chi', 4220, 4940]],\n    '09:45'],\n   [['ana', 6, 5, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['ana', 0, 600], ['chi', 1300, 2020], ['ana', 510, 1110], ['ana', 990, 1350], ['chi', 2650, 2890],\n     ['ana', 570, 1050], ['ben', 1320, 1800], ['chi', 0, 600], ['ben', 0, 360], ['ben', 240, 720],\n     ['ben', 2429, 3029]],\n    '11:00'],\n   [['ana', 0, 2, 'overlap'], ['ana', 2, 5, 'overlap'], ['ana', 2, 3, 'overlap'], ['ben', 8, 9, 'overlap'],\n    ['ben', 9, 6, 'short_rest'], ['ben', 6, 10, 'short_rest'], ['chi', 1, 4, 'short_rest']]),\n  ('boundary control 4', [[['ana', 0, 900], ['ana', 100, 300], ['ana', 600, 800]], '11:00'],\n   [['ana', 0, 1, 'overlap'], ['ana', 0, 2, 'overlap']]),\n  ('boundary control 5', [[['ana', 0, 480], ['ana', 1139, 1620]], '11:00'], [['ana', 0, 1, 'short_rest']]),\n  ('normal control 6',\n   [[['ben', 6442, 7162], ['ben', 4040, 4640], ['ben', 5301, 5781], ['ben', 1320, 2040]], '10:31'], []),\n  ('normal control 7',\n   [[['ben', 510, 870], ['dev', 300, 660], ['chi', 1260, 1860], ['ben', 450, 690], ['dev', 2160, 2640],\n     ['chi', 3360, 3720], ['chi', 1320, 1920], ['ben', 300, 540], ['chi', 5220, 5820], ['dev', 3271, 3751]],\n    '10:31'],\n   [['ben', 7, 3, 'overlap'], ['ben', 3, 0, 'overlap'], ['chi', 2, 6, 'overlap']]),\n  ('normal control 8',\n   [[['dev', 1320, 1680], ['dev', 3000, 3240], ['dev', 1650, 2370], ['dev', 300, 660]], '09:45'],\n   [['dev', 0, 2, 'overlap']])],\n [('regression: overlap containment only 1',\n   [[['ana', 4741, 5101], ['dev', 1940, 2300], ['ben', 3719, 3959], ['ben', 2999, 3719], ['ben', 2549, 3029],\n     ['ben', 1320, 1920], ['ana', 2220, 2940], ['ana', 0, 720], ['dev', 2000, 2360], ['ana', 3601, 3841]],\n    '11:00'],\n   [['ben', 5, 4, 'short_rest'], ['ben', 4, 3, 'overlap'], ['ben', 3, 2, 'short_rest'],\n    ['dev', 1, 8, 'overlap']]),\n  ('regression variant: overlap containment only 2',\n   [[['dev', 5220, 5700], ['chi', 3140, 3380], ['dev', 300, 780], ['chi', 300, 540], ['dev', 1440, 2160],\n     ['dev', 2860, 3220], ['chi', 540, 780], ['chi', 780, 1140]],\n    '10:30'],\n   [['chi', 3, 6, 'short_rest'], ['chi', 6, 7, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['chi', 1109, 1349], ['ana', 2010, 2250], ['chi', 2730, 3090], ['chi', 0, 480], ['dev', 1880, 2480],\n     ['dev', 4480, 5200], ['chi', 1349, 2069], ['dev', 1940, 2660], ['dev', 2000, 2360], ['ana', 2950, 3190],\n     ['ana', 1320, 2040]],\n    '12:00'],\n   [['ana', 10, 1, 'overlap'], ['ana', 1, 9, 'short_rest'], ['chi', 3, 0, 'short_rest'],\n    ['chi', 0, 6, 'short_rest'], ['chi', 6, 2, 'short_rest'], ['dev', 4, 7, 'overlap'],\n    ['dev', 7, 8, 'overlap']]),\n  ('boundary control 4', [[['ben', 0, 480], ['ben', 1110, 1400]], '10:30'], []),\n  ('boundary control 5', [[['ana', 0, 480], ['ana', 480, 960], ['ben', 0, 480]], '10:30'],\n   [['ana', 0, 1, 'short_rest']]),\n  ('normal control 6',\n   [[['dev', 3780, 4380], ['chi', 4409, 4649], ['chi', 2000, 2720], ['dev', 4350, 5070], ['ben', 1740, 2460],\n     ['dev', 3300, 3780], ['chi', 3420, 3780], ['ben', 300, 780], ['dev', 1320, 1800], ['ben', 240, 840],\n     ['ben', 3121, 3841]],\n    '10:31'],\n   [['ben', 9, 7, 'overlap'], ['chi', 6, 1, 'short_rest'], ['dev', 5, 0, 'short_rest'],\n    ['dev', 0, 3, 'overlap']]),\n  ('normal control 7',\n   [[['ana', 940, 1660], ['chi', 0, 720], ['chi', 2489, 3089], ['chi', 1380, 1860], ['ana', 0, 240],\n     ['chi', 3750, 4350]],\n    '12:00'],\n   [['ana', 4, 0, 'short_rest'], ['chi', 1, 3, 'short_rest'], ['chi', 3, 2, 'short_rest'],\n    ['chi', 2, 5, 'short_rest']]),\n  ('normal control 8', [[['ben', 900, 1500], ['ben', 0, 240]], '11:00'], [])],\n [('regression: overlap containment only 1', [[['ana', 0, 240], ['ana', 240, 840]], '10:31'],\n   [['ana', 0, 1, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['chi', 2000, 2240], ['ben', 1800, 2040], ['chi', 2940, 3180], ['ben', 1320, 1800]], '12:00'],\n   [['ben', 3, 1, 'short_rest'], ['chi', 0, 2, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['ana', 2189, 2909], ['ana', 1320, 1560], ['chi', 2560, 3160], ['ben', 2820, 3420], ['ben', 0, 480],\n     ['chi', 2620, 2980], ['ben', 1111, 1831], ['chi', 1320, 1920], ['ben', 2460, 2820],\n     ['chi', 5160, 5760]],\n    '11:00'],\n   [['ana', 1, 0, 'short_rest'], ['ben', 4, 6, 'short_rest'], ['ben', 6, 8, 'short_rest'],\n    ['ben', 8, 3, 'short_rest'], ['chi', 7, 2, 'short_rest'], ['chi', 2, 5, 'overlap']]),\n  ('boundary control 4', [[['ana', 1200, 1680], ['ana', 0, 480]], '11:00'], []),\n  ('boundary control 5', [[['ana', 0, 480], ['ana', 1140, 1620]], '11:00'], []),\n  ('normal control 6',\n   [[['chi', 300, 1020], ['chi', 4400, 5120], ['ana', 1320, 1560], ['chi', 5820, 6540], ['chi', 1680, 2400],\n     ['ana', 2221, 2701], ['dev', 2940, 3300], ['dev', 5300, 5660], ['dev', 1320, 2040]],\n    '09:45'],\n   []),\n  ('normal control 7', [[['ben', 900, 1140], ['ben', 300, 900]], '09:45'], [['ben', 1, 0, 'short_rest']]),\n  ('normal control 8',\n   [[['dev', 2120, 2720], ['ana', 240, 840], ['dev', 2000, 2240], ['ana', 0, 240]], '12:00'],\n   [['ana', 3, 1, 'short_rest'], ['dev', 2, 0, 'overlap']])],\n [('regression: overlap containment only 1',\n   [[['ana', 0, 360], ['ana', 1021, 1741], ['ana', 1741, 1981]], '10:30'], [['ana', 1, 2, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['dev', 3229, 3829], ['ana', 2950, 3670], ['ana', 1530, 2250], ['ben', 1920, 2640], ['ana', 300, 900],\n     ['dev', 5829, 6429], ['ben', 3240, 3720], ['ana', 4331, 4931], ['ben', 1320, 1920],\n     ['dev', 2000, 2600]],\n    '10:31'],\n   [['ana', 4, 2, 'short_rest'], ['ben', 8, 3, 'short_rest'], ['ben', 3, 6, 'short_rest'],\n    ['dev', 9, 0, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['ana', 4580, 4940], ['chi', 2000, 2720], ['chi', 4610, 5210], ['dev', 1800, 2160], ['dev', 600, 960],\n     ['ana', 300, 900], ['chi', 5840, 6200], ['ana', 4640, 4880], ['ana', 2900, 3140], ['dev', 1860, 2340],\n     ['chi', 3381, 3981], ['dev', 0, 720]],\n    '10:30'],\n   [['ana', 0, 7, 'overlap'], ['chi', 10, 2, 'short_rest'], ['dev', 11, 4, 'overlap'],\n    ['dev', 3, 9, 'overlap']]),\n  ('boundary control 4', [[['ben', 0, 480], ['ben', 3400, 3800]], '11:00'], []),\n  ('boundary control 5', [[['ana', 0, 900], ['ana', 100, 300], ['ana', 600, 800]], '11:00'],\n   [['ana', 0, 1, 'overlap'], ['ana', 0, 2, 'overlap']]),\n  ('normal control 6',\n   [[['ben', 2671, 3031], ['ben', 1320, 2040], ['dev', 0, 480], ['ben', 4922, 5282], ['ben', 3662, 4022],\n     ['dev', 480, 840], ['ana', 2871, 3111], ['ana', 2000, 2240]],\n    '09:45'],\n   [['dev', 2, 5, 'short_rest']]),\n  ('normal control 7',\n   [[['ben', 1320, 1800], ['dev', 0, 480], ['ben', 3800, 4040], ['dev', 1380, 1860]], '10:31'], []),\n  ('normal control 8',\n   [[['ben', 0, 480], ['dev', 2000, 2240], ['dev', 3740, 4220], ['ana', 1320, 1800], ['ana', 1770, 2130],\n     ['ben', 450, 1170]],\n    '09:45'],\n   [['ana', 3, 4, 'overlap'], ['ben', 0, 5, 'overlap']])],\n [('regression: overlap containment only 1',\n   [[['ben', 1300, 2020], ['ben', 360, 600], ['ben', 0, 360], ['ben', 3520, 4120]], '10:31'],\n   [['ben', 2, 1, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['ben', 2380, 3100], ['chi', 300, 1020], ['chi', 2821, 3301], ['ana', 2000, 2480], ['ben', 1320, 1680],\n     ['chi', 1681, 1921], ['ana', 2480, 3080]],\n    '10:31'],\n   [['ana', 3, 6, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['dev', 1320, 1560], ['ana', 0, 240], ['ana', 1201, 1561], ['dev', 3060, 3300], ['ana', 901, 1141],\n     ['ana', 841, 1201]],\n    '10:30'],\n   [['ana', 1, 5, 'short_rest'], ['ana', 5, 4, 'overlap'], ['ana', 5, 2, 'short_rest']]),\n  ('boundary control 4', [[['ana', 0, 480], ['ana', 1139, 1620]], '11:00'], [['ana', 0, 1, 'short_rest']]),\n  ('boundary control 5', [[['ben', 0, 480], ['ben', 1110, 1400]], '10:30'], []),\n  ('normal control 6',\n   [[['dev', 5220, 5700], ['chi', 3140, 3380], ['dev', 300, 780], ['chi', 300, 540], ['dev', 1440, 2160],\n     ['dev', 2860, 3220], ['chi', 540, 780], ['chi', 780, 1140]],\n    '10:30'],\n   [['chi', 3, 6, 'short_rest'], ['chi', 6, 7, 'short_rest']]),\n  ('normal control 7',\n   [[['chi', 2251, 2731], ['ben', 2940, 3540], ['ben', 4171, 4411], ['chi', 1320, 1680], ['chi', 1260, 1620],\n     ['ben', 1320, 2040]],\n    '09:45'],\n   [['chi', 4, 3, 'overlap'], ['chi', 3, 0, 'short_rest']]),\n  ('normal control 8',\n   [[['chi', 300, 1020], ['ben', 5501, 6101], ['ben', 2000, 2240], ['ben', 2901, 3501], ['chi', 1890, 2130],\n     ['chi', 990, 1230]],\n    '09:45'],\n   [['chi', 0, 5, 'overlap']])]]\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":"baee2c3358ae250ededf9d571a7552ded4df837cf757cb78da1aba2d3a566526","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(shifts, min_rest):\n    h, m = min_rest.split(':')\n    limit = int(h) * 60 + int(m)\n    by = {}\n    for i, (w, s, e) in enumerate(shifts):\n        by.setdefault(w, []).append((s, e, i))\n    out = []\n    for w in sorted(by):\n        seq = sorted(by[w])\n        prev = None\n        for s, e, i in seq:\n            if prev is not None:\n                pe, pi = prev\n                gap = s - pe\n                if gap <= 0:\n                    out.append([w, pi, i, 'overlap'])\n                elif gap < limit:\n                    out.append([w, pi, i, 'short_rest'])\n            if prev is None or e > prev[0]:\n                prev = (e, i)\n    return out\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: overlap containment only 1', [[['ana', 0, 480], ['ana', 480, 960], ['ben', 0, 480]], '10:30'],\n   [['ana', 0, 1, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['ana', 3831, 4191], ['ana', 4791, 5391], ['chi', 5600, 5840], ['chi', 2000, 2720], ['chi', 6471, 6711],\n     ['ana', 2480, 3200], ['ana', 2000, 2480], ['chi', 4220, 4940]],\n    '09:45'],\n   [['ana', 6, 5, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['ana', 0, 600], ['chi', 1300, 2020], ['ana', 510, 1110], ['ana', 990, 1350], ['chi', 2650, 2890],\n     ['ana', 570, 1050], ['ben', 1320, 1800], ['chi', 0, 600], ['ben', 0, 360], ['ben', 240, 720],\n     ['ben', 2429, 3029]],\n    '11:00'],\n   [['ana', 0, 2, 'overlap'], ['ana', 2, 5, 'overlap'], ['ana', 2, 3, 'overlap'], ['ben', 8, 9, 'overlap'],\n    ['ben', 9, 6, 'short_rest'], ['ben', 6, 10, 'short_rest'], ['chi', 1, 4, 'short_rest']]),\n  ('boundary control 4', [[['ana', 0, 900], ['ana', 100, 300], ['ana', 600, 800]], '11:00'],\n   [['ana', 0, 1, 'overlap'], ['ana', 0, 2, 'overlap']]),\n  ('boundary control 5', [[['ana', 0, 480], ['ana', 1139, 1620]], '11:00'], [['ana', 0, 1, 'short_rest']]),\n  ('normal control 6',\n   [[['ben', 6442, 7162], ['ben', 4040, 4640], ['ben', 5301, 5781], ['ben', 1320, 2040]], '10:31'], []),\n  ('normal control 7',\n   [[['ben', 510, 870], ['dev', 300, 660], ['chi', 1260, 1860], ['ben', 450, 690], ['dev', 2160, 2640],\n     ['chi', 3360, 3720], ['chi', 1320, 1920], ['ben', 300, 540], ['chi', 5220, 5820], ['dev', 3271, 3751]],\n    '10:31'],\n   [['ben', 7, 3, 'overlap'], ['ben', 3, 0, 'overlap'], ['chi', 2, 6, 'overlap']]),\n  ('normal control 8',\n   [[['dev', 1320, 1680], ['dev', 3000, 3240], ['dev', 1650, 2370], ['dev', 300, 660]], '09:45'],\n   [['dev', 0, 2, 'overlap']])],\n [('regression: overlap containment only 1',\n   [[['ana', 4741, 5101], ['dev', 1940, 2300], ['ben', 3719, 3959], ['ben', 2999, 3719], ['ben', 2549, 3029],\n     ['ben', 1320, 1920], ['ana', 2220, 2940], ['ana', 0, 720], ['dev', 2000, 2360], ['ana', 3601, 3841]],\n    '11:00'],\n   [['ben', 5, 4, 'short_rest'], ['ben', 4, 3, 'overlap'], ['ben', 3, 2, 'short_rest'],\n    ['dev', 1, 8, 'overlap']]),\n  ('regression variant: overlap containment only 2',\n   [[['dev', 5220, 5700], ['chi', 3140, 3380], ['dev', 300, 780], ['chi', 300, 540], ['dev', 1440, 2160],\n     ['dev', 2860, 3220], ['chi', 540, 780], ['chi', 780, 1140]],\n    '10:30'],\n   [['chi', 3, 6, 'short_rest'], ['chi', 6, 7, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['chi', 1109, 1349], ['ana', 2010, 2250], ['chi', 2730, 3090], ['chi', 0, 480], ['dev', 1880, 2480],\n     ['dev', 4480, 5200], ['chi', 1349, 2069], ['dev', 1940, 2660], ['dev', 2000, 2360], ['ana', 2950, 3190],\n     ['ana', 1320, 2040]],\n    '12:00'],\n   [['ana', 10, 1, 'overlap'], ['ana', 1, 9, 'short_rest'], ['chi', 3, 0, 'short_rest'],\n    ['chi', 0, 6, 'short_rest'], ['chi', 6, 2, 'short_rest'], ['dev', 4, 7, 'overlap'],\n    ['dev', 7, 8, 'overlap']]),\n  ('boundary control 4', [[['ben', 0, 480], ['ben', 1110, 1400]], '10:30'], []),\n  ('boundary control 5', [[['ana', 0, 480], ['ana', 480, 960], ['ben', 0, 480]], '10:30'],\n   [['ana', 0, 1, 'short_rest']]),\n  ('normal control 6',\n   [[['dev', 3780, 4380], ['chi', 4409, 4649], ['chi', 2000, 2720], ['dev', 4350, 5070], ['ben', 1740, 2460],\n     ['dev', 3300, 3780], ['chi', 3420, 3780], ['ben', 300, 780], ['dev', 1320, 1800], ['ben', 240, 840],\n     ['ben', 3121, 3841]],\n    '10:31'],\n   [['ben', 9, 7, 'overlap'], ['chi', 6, 1, 'short_rest'], ['dev', 5, 0, 'short_rest'],\n    ['dev', 0, 3, 'overlap']]),\n  ('normal control 7',\n   [[['ana', 940, 1660], ['chi', 0, 720], ['chi', 2489, 3089], ['chi', 1380, 1860], ['ana', 0, 240],\n     ['chi', 3750, 4350]],\n    '12:00'],\n   [['ana', 4, 0, 'short_rest'], ['chi', 1, 3, 'short_rest'], ['chi', 3, 2, 'short_rest'],\n    ['chi', 2, 5, 'short_rest']]),\n  ('normal control 8', [[['ben', 900, 1500], ['ben', 0, 240]], '11:00'], [])],\n [('regression: overlap containment only 1', [[['ana', 0, 240], ['ana', 240, 840]], '10:31'],\n   [['ana', 0, 1, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['chi', 2000, 2240], ['ben', 1800, 2040], ['chi', 2940, 3180], ['ben', 1320, 1800]], '12:00'],\n   [['ben', 3, 1, 'short_rest'], ['chi', 0, 2, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['ana', 2189, 2909], ['ana', 1320, 1560], ['chi', 2560, 3160], ['ben', 2820, 3420], ['ben', 0, 480],\n     ['chi', 2620, 2980], ['ben', 1111, 1831], ['chi', 1320, 1920], ['ben', 2460, 2820],\n     ['chi', 5160, 5760]],\n    '11:00'],\n   [['ana', 1, 0, 'short_rest'], ['ben', 4, 6, 'short_rest'], ['ben', 6, 8, 'short_rest'],\n    ['ben', 8, 3, 'short_rest'], ['chi', 7, 2, 'short_rest'], ['chi', 2, 5, 'overlap']]),\n  ('boundary control 4', [[['ana', 1200, 1680], ['ana', 0, 480]], '11:00'], []),\n  ('boundary control 5', [[['ana', 0, 480], ['ana', 1140, 1620]], '11:00'], []),\n  ('normal control 6',\n   [[['chi', 300, 1020], ['chi', 4400, 5120], ['ana', 1320, 1560], ['chi', 5820, 6540], ['chi', 1680, 2400],\n     ['ana', 2221, 2701], ['dev', 2940, 3300], ['dev', 5300, 5660], ['dev', 1320, 2040]],\n    '09:45'],\n   []),\n  ('normal control 7', [[['ben', 900, 1140], ['ben', 300, 900]], '09:45'], [['ben', 1, 0, 'short_rest']]),\n  ('normal control 8',\n   [[['dev', 2120, 2720], ['ana', 240, 840], ['dev', 2000, 2240], ['ana', 0, 240]], '12:00'],\n   [['ana', 3, 1, 'short_rest'], ['dev', 2, 0, 'overlap']])],\n [('regression: overlap containment only 1',\n   [[['ana', 0, 360], ['ana', 1021, 1741], ['ana', 1741, 1981]], '10:30'], [['ana', 1, 2, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['dev', 3229, 3829], ['ana', 2950, 3670], ['ana', 1530, 2250], ['ben', 1920, 2640], ['ana', 300, 900],\n     ['dev', 5829, 6429], ['ben', 3240, 3720], ['ana', 4331, 4931], ['ben', 1320, 1920],\n     ['dev', 2000, 2600]],\n    '10:31'],\n   [['ana', 4, 2, 'short_rest'], ['ben', 8, 3, 'short_rest'], ['ben', 3, 6, 'short_rest'],\n    ['dev', 9, 0, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['ana', 4580, 4940], ['chi', 2000, 2720], ['chi', 4610, 5210], ['dev', 1800, 2160], ['dev', 600, 960],\n     ['ana', 300, 900], ['chi', 5840, 6200], ['ana', 4640, 4880], ['ana', 2900, 3140], ['dev', 1860, 2340],\n     ['chi', 3381, 3981], ['dev', 0, 720]],\n    '10:30'],\n   [['ana', 0, 7, 'overlap'], ['chi', 10, 2, 'short_rest'], ['dev', 11, 4, 'overlap'],\n    ['dev', 3, 9, 'overlap']]),\n  ('boundary control 4', [[['ben', 0, 480], ['ben', 3400, 3800]], '11:00'], []),\n  ('boundary control 5', [[['ana', 0, 900], ['ana', 100, 300], ['ana', 600, 800]], '11:00'],\n   [['ana', 0, 1, 'overlap'], ['ana', 0, 2, 'overlap']]),\n  ('normal control 6',\n   [[['ben', 2671, 3031], ['ben', 1320, 2040], ['dev', 0, 480], ['ben', 4922, 5282], ['ben', 3662, 4022],\n     ['dev', 480, 840], ['ana', 2871, 3111], ['ana', 2000, 2240]],\n    '09:45'],\n   [['dev', 2, 5, 'short_rest']]),\n  ('normal control 7',\n   [[['ben', 1320, 1800], ['dev', 0, 480], ['ben', 3800, 4040], ['dev', 1380, 1860]], '10:31'], []),\n  ('normal control 8',\n   [[['ben', 0, 480], ['dev', 2000, 2240], ['dev', 3740, 4220], ['ana', 1320, 1800], ['ana', 1770, 2130],\n     ['ben', 450, 1170]],\n    '09:45'],\n   [['ana', 3, 4, 'overlap'], ['ben', 0, 5, 'overlap']])],\n [('regression: overlap containment only 1',\n   [[['ben', 1300, 2020], ['ben', 360, 600], ['ben', 0, 360], ['ben', 3520, 4120]], '10:31'],\n   [['ben', 2, 1, 'short_rest']]),\n  ('regression variant: overlap containment only 2',\n   [[['ben', 2380, 3100], ['chi', 300, 1020], ['chi', 2821, 3301], ['ana', 2000, 2480], ['ben', 1320, 1680],\n     ['chi', 1681, 1921], ['ana', 2480, 3080]],\n    '10:31'],\n   [['ana', 3, 6, 'short_rest']]),\n  ('partial repair guard 3',\n   [[['dev', 1320, 1560], ['ana', 0, 240], ['ana', 1201, 1561], ['dev', 3060, 3300], ['ana', 901, 1141],\n     ['ana', 841, 1201]],\n    '10:30'],\n   [['ana', 1, 5, 'short_rest'], ['ana', 5, 4, 'overlap'], ['ana', 5, 2, 'short_rest']]),\n  ('boundary control 4', [[['ana', 0, 480], ['ana', 1139, 1620]], '11:00'], [['ana', 0, 1, 'short_rest']]),\n  ('boundary control 5', [[['ben', 0, 480], ['ben', 1110, 1400]], '10:30'], []),\n  ('normal control 6',\n   [[['dev', 5220, 5700], ['chi', 3140, 3380], ['dev', 300, 780], ['chi', 300, 540], ['dev', 1440, 2160],\n     ['dev', 2860, 3220], ['chi', 540, 780], ['chi', 780, 1140]],\n    '10:30'],\n   [['chi', 3, 6, 'short_rest'], ['chi', 6, 7, 'short_rest']]),\n  ('normal control 7',\n   [[['chi', 2251, 2731], ['ben', 2940, 3540], ['ben', 4171, 4411], ['chi', 1320, 1680], ['chi', 1260, 1620],\n     ['ben', 1320, 2040]],\n    '09:45'],\n   [['chi', 4, 3, 'overlap'], ['chi', 3, 0, 'short_rest']]),\n  ('normal control 8',\n   [[['chi', 300, 1020], ['ben', 5501, 6101], ['ben', 2000, 2240], ['ben', 2901, 3501], ['chi', 1890, 2130],\n     ['chi', 990, 1230]],\n    '09:45'],\n   [['chi', 0, 5, 'overlap']])]]\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":"Stipulated toy labor rule for a bounded roster model; it is not legal advice and does not claim conformance with any jurisdiction, award, or collective agreement. 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-shift-rostering-labor-rules-minimum-rest-between-shifts-overlap-containment-only","generated_at":"2026-09-29T14:51:58.939211+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Rest-period validation is the most common roster labor rule; errors either hide fatigue risks or block legal rosters.","root_cause":"The overlap test treats a zero gap as overlap.","sha256":"6291d558f5f4dd7379c01bf4383f1b3688ce27484cd2b6b30763f1106eff5ca3","title":"Back-to-back shifts classified as overlapping · 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":40.213,"exit_code":1,"observations":[{"actual":[["ana",0,1,"short_rest"]],"check":"regression: overlap containment only 1","expected":[["ana",0,1,"short_rest"]],"passed":true},{"actual":[["ana",6,5,"short_rest"]],"check":"regression variant: overlap containment only 2","expected":[["ana",6,5,"short_rest"]],"passed":true},{"actual":[["ana",0,2,"overlap"],["ana",2,5,"short_rest"],["ana",2,3,"overlap"],["ben",8,9,"overlap"],["ben",9,6,"short_rest"],["ben",6,10,"short_rest"],["chi",1,4,"short_rest"]],"check":"partial repair guard 3","expected":[["ana",0,2,"overlap"],["ana",2,5,"overlap"],["ana",2,3,"overlap"],["ben",8,9,"overlap"],["ben",9,6,"short_rest"],["ben",6,10,"short_rest"],["chi",1,4,"short_rest"]],"passed":false},{"actual":[["ana",0,1,"short_rest"],["ana",0,2,"short_rest"]],"check":"boundary control 4","expected":[["ana",0,1,"overlap"],["ana",0,2,"overlap"]],"passed":false},{"actual":[["ana",0,1,"short_rest"]],"check":"boundary control 5","expected":[["ana",0,1,"short_rest"]],"passed":true},{"actual":[],"check":"normal control 6","expected":[],"passed":true},{"actual":[["ben",7,3,"overlap"],["ben",3,0,"overlap"],["chi",2,6,"overlap"]],"check":"normal control 7","expected":[["ben",7,3,"overlap"],["ben",3,0,"overlap"],["chi",2,6,"overlap"]],"passed":true},{"actual":[["dev",0,2,"overlap"]],"check":"normal control 8","expected":[["dev",0,2,"overlap"]],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"regression: overlap containment only 1\", \"actual\": [[\"ana\", 0, 1, \"short_rest\"]], \"expected\": [[\"ana\", 0, 1, \"short_rest\"]], \"passed\": true}, {\"check\": \"regression variant: overlap containment only 2\", \"actual\": [[\"ana\", 6, 5, \"short_rest\"]], \"expected\": [[\"ana\", 6, 5, \"short_rest\"]], \"passed\": true}, {\"check\": \"partial repair guard 3\", \"actual\": [[\"ana\", 0, 2, \"overlap\"], [\"ana\", 2, 5, \"short_rest\"], [\"ana\", 2, 3, \"overlap\"], [\"ben\", 8, 9, \"overlap\"], [\"ben\", 9, 6, \"short_rest\"], [\"ben\", 6, 10, \"short_rest\"], [\"chi\", 1, 4, \"short_rest\"]], \"expected\": [[\"ana\", 0, 2, \"overlap\"], [\"ana\", 2, 5, \"overlap\"], [\"ana\", 2, 3, \"overlap\"], [\"ben\", 8, 9, \"overlap\"], [\"ben\", 9, 6, \"short_rest\"], [\"ben\", 6, 10, \"short_rest\"], [\"chi\", 1, 4, \"short_rest\"]], \"passed\": false}, {\"check\": \"boundary control 4\", \"actual\": [[\"ana\", 0, 1, \"short_rest\"], [\"ana\", 0, 2, \"short_rest\"]], \"expected\": [[\"ana\", 0, 1, \"overlap\"], [\"ana\", 0, 2, \"overlap\"]], \"passed\": false}, {\"check\": \"boundary control 5\", \"actual\": [[\"ana\", 0, 1, \"short_rest\"]], \"expected\": [[\"ana\", 0, 1, \"short_rest\"]], \"passed\": true}, {\"check\": \"normal control 6\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"normal control 7\", \"actual\": [[\"ben\", 7, 3, \"overlap\"], [\"ben\", 3, 0, \"overlap\"], [\"chi\", 2, 6, \"overlap\"]], \"expected\": [[\"ben\", 7, 3, \"overlap\"], [\"ben\", 3, 0, \"overlap\"], [\"chi\", 2, 6, \"overlap\"]], \"passed\": true}, {\"check\": \"normal control 8\", \"actual\": [[\"dev\", 0, 2, \"overlap\"]], \"expected\": [[\"dev\", 0, 2, \"overlap\"]], \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":45.599,"exit_code":1,"observations":[{"actual":[["ana",0,1,"overlap"]],"check":"regression: overlap containment only 1","expected":[["ana",0,1,"short_rest"]],"passed":false},{"actual":[["ana",6,5,"overlap"]],"check":"regression variant: overlap containment only 2","expected":[["ana",6,5,"short_rest"]],"passed":false},{"actual":[["ana",0,2,"overlap"],["ana",2,5,"overlap"],["ana",2,3,"overlap"],["ben",8,9,"overlap"],["ben",9,6,"short_rest"],["ben",6,10,"short_rest"],["chi",1,4,"short_rest"]],"check":"partial repair guard 3","expected":[["ana",0,2,"overlap"],["ana",2,5,"overlap"],["ana",2,3,"overlap"],["ben",8,9,"overlap"],["ben",9,6,"short_rest"],["ben",6,10,"short_rest"],["chi",1,4,"short_rest"]],"passed":true},{"actual":[["ana",0,1,"overlap"],["ana",0,2,"overlap"]],"check":"boundary control 4","expected":[["ana",0,1,"overlap"],["ana",0,2,"overlap"]],"passed":true},{"actual":[["ana",0,1,"short_rest"]],"check":"boundary control 5","expected":[["ana",0,1,"short_rest"]],"passed":true},{"actual":[],"check":"normal control 6","expected":[],"passed":true},{"actual":[["ben",7,3,"overlap"],["ben",3,0,"overlap"],["chi",2,6,"overlap"]],"check":"normal control 7","expected":[["ben",7,3,"overlap"],["ben",3,0,"overlap"],["chi",2,6,"overlap"]],"passed":true},{"actual":[["dev",0,2,"overlap"]],"check":"normal control 8","expected":[["dev",0,2,"overlap"]],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"regression: overlap containment only 1\", \"actual\": [[\"ana\", 0, 1, \"overlap\"]], \"expected\": [[\"ana\", 0, 1, \"short_rest\"]], \"passed\": false}, {\"check\": \"regression variant: overlap containment only 2\", \"actual\": [[\"ana\", 6, 5, \"overlap\"]], \"expected\": [[\"ana\", 6, 5, \"short_rest\"]], \"passed\": false}, {\"check\": \"partial repair guard 3\", \"actual\": [[\"ana\", 0, 2, \"overlap\"], [\"ana\", 2, 5, \"overlap\"], [\"ana\", 2, 3, \"overlap\"], [\"ben\", 8, 9, \"overlap\"], [\"ben\", 9, 6, \"short_rest\"], [\"ben\", 6, 10, \"short_rest\"], [\"chi\", 1, 4, \"short_rest\"]], \"expected\": [[\"ana\", 0, 2, \"overlap\"], [\"ana\", 2, 5, \"overlap\"], [\"ana\", 2, 3, \"overlap\"], [\"ben\", 8, 9, \"overlap\"], [\"ben\", 9, 6, \"short_rest\"], [\"ben\", 6, 10, \"short_rest\"], [\"chi\", 1, 4, \"short_rest\"]], \"passed\": true}, {\"check\": \"boundary control 4\", \"actual\": [[\"ana\", 0, 1, \"overlap\"], [\"ana\", 0, 2, \"overlap\"]], \"expected\": [[\"ana\", 0, 1, \"overlap\"], [\"ana\", 0, 2, \"overlap\"]], \"passed\": true}, {\"check\": \"boundary control 5\", \"actual\": [[\"ana\", 0, 1, \"short_rest\"]], \"expected\": [[\"ana\", 0, 1, \"short_rest\"]], \"passed\": true}, {\"check\": \"normal control 6\", \"actual\": [], \"expected\": [], \"passed\": true}, {\"check\": \"normal control 7\", \"actual\": [[\"ben\", 7, 3, \"overlap\"], [\"ben\", 3, 0, \"overlap\"], [\"chi\", 2, 6, \"overlap\"]], \"expected\": [[\"ben\", 7, 3, \"overlap\"], [\"ben\", 3, 0, \"overlap\"], [\"chi\", 2, 6, \"overlap\"]], \"passed\": true}, {\"check\": \"normal control 8\", \"actual\": [[\"dev\", 0, 2, \"overlap\"]], \"expected\": [[\"dev\", 0, 2, \"overlap\"]], \"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."}}