{"abstract":"A curtain held blocked never triggers nudging, or brief separate obstructions add up to a long blockage.","category":"Elevator dispatch scheduling","checks":8,"contract":"During a door cycle each light-curtain obstruction reopens the doors and counts; the third obstruction, or an obstruction while the curtain has been blocked continuously for 20 s or more since the first unbroken obstruction, starts nudging (slow close, curtain ignored). While nudging, curtain obstructions are ignored. The mechanical safety edge always reopens and does not affect counting. unblock ends a continuous blockage. closed ends the cycle and resets everything.","evaluation_group":"w2-elevator_dispatch_scheduling-door-obstruction-nudging","failed_approach":"Ignoring unblock measures from an obstruction that has since been cleared.","family":"w2-elevator_dispatch_scheduling-door-obstruction-nudging-continuous-blockage-timer","id":"FA-67656","implementations":{"attempt":{"sha256":"9ac6aed35572edf21b0cf5932fbf7791d6537c3cd87eac95bbccd0784de1b405","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    count = 0\n    nudge = False\n    block_start = None\n    out = []\n    for t, ev in x['events']:\n        if ev == 'obstruct':\n            if block_start is None:\n                block_start = t\n            if nudge:\n                out.append('ignored')\n            else:\n                count += 1\n                if count >= 3 or t - block_start >= 20:\n                    nudge = True\n                    out.append('nudge')\n                else:\n                    out.append('reopen')\n        elif ev == 'unblock':\n            pass\n        elif ev == 'edge':\n            out.append('reopen')\n        elif ev == 'closed':\n            count = 0\n            nudge = False\n            block_start = None\n            out.append('done')\n    return out\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: third obstruction', {'events': [[1, 'obstruct'], [2, 'unblock'], [3, 'obstruct'], [4, 'unblock'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('boundary: safety edge while nudging', {'events': [[1, 'obstruct'], [2, 'obstruct'], [3, 'obstruct'], [4, 'edge'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'reopen', 'ignored']), ('control 1', {'events': [[8, 'obstruct'], [13, 'closed'], [18, 'obstruct'], [26, 'edge'], [28, 'obstruct'], [29, 'obstruct'], [41, 'obstruct'], [42, 'obstruct'], [54, 'obstruct'], [66, 'closed']]}, ['reopen', 'done', 'reopen', 'reopen', 'reopen', 'nudge', 'ignored', 'ignored', 'ignored', 'done']), ('control 4', {'events': [[5, 'edge'], [10, 'unblock'], [11, 'obstruct'], [19, 'closed']]}, ['reopen', 'reopen', 'done']), ('control 7', {'events': [[2, 'unblock'], [10, 'edge'], [18, 'obstruct'], [23, 'unblock'], [28, 'edge'], [33, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'reopen'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 3', {'events': [[1, 'obstruct'], [13, 'edge'], [21, 'obstruct'], [26, 'unblock'], [27, 'obstruct'], [32, 'edge'], [40, 'obstruct'], [48, 'obstruct'], [56, 'unblock'], [64, 'closed']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'reopen', 'ignored', 'ignored', 'done']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('boundary: edge contacts do not count', {'events': [[1, 'obstruct'], [2, 'edge'], [3, 'unblock'], [4, 'obstruct'], [5, 'edge']]}, ['reopen', 'reopen', 'reopen', 'reopen']), ('control 12', {'events': [[5, 'obstruct'], [13, 'edge'], [15, 'unblock'], [16, 'obstruct'], [21, 'unblock'], [22, 'edge'], [30, 'closed'], [32, 'obstruct'], [44, 'edge']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'done', 'reopen', 'reopen']), ('control 15', {'events': [[8, 'obstruct'], [9, 'obstruct'], [10, 'obstruct'], [11, 'unblock'], [16, 'obstruct'], [24, 'obstruct'], [29, 'edge']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'ignored', 'reopen']), ('control 18', {'events': [[12, 'obstruct'], [20, 'obstruct'], [22, 'obstruct']]}, ['reopen', 'reopen', 'nudge'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 65', {'events': [[1, 'obstruct'], [13, 'edge'], [25, 'obstruct'], [37, 'unblock']]}, ['reopen', 'reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: curtain broken then blocked again', {'events': [[0, 'obstruct'], [5, 'unblock'], [15, 'obstruct'], [26, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('control 23', {'events': [[1, 'unblock'], [6, 'unblock'], [18, 'obstruct'], [30, 'closed']]}, ['reopen', 'done']), ('control 26', {'events': [[12, 'closed'], [13, 'closed'], [15, 'obstruct'], [17, 'obstruct'], [19, 'obstruct']]}, ['done', 'done', 'reopen', 'reopen', 'nudge']), ('control 29', {'events': [[8, 'edge'], [10, 'obstruct'], [12, 'obstruct'], [20, 'closed']]}, ['reopen', 'reopen', 'reopen', 'done'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('boundary: closing clears nudging', {'events': [[0, 'obstruct'], [1, 'obstruct'], [2, 'obstruct'], [3, 'closed'], [4, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'done', 'reopen']), ('boundary: third obstruction', {'events': [[1, 'obstruct'], [2, 'unblock'], [3, 'obstruct'], [4, 'unblock'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('control 34', {'events': [[8, 'edge'], [16, 'obstruct'], [24, 'obstruct'], [36, 'closed'], [48, 'obstruct'], [60, 'obstruct'], [62, 'obstruct'], [64, 'unblock'], [72, 'obstruct'], [80, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'done', 'reopen', 'reopen', 'nudge', 'ignored']), ('control 37', {'events': [[2, 'closed'], [4, 'closed'], [9, 'obstruct'], [21, 'edge']]}, ['done', 'done', 'reopen', 'reopen']), ('control 40', {'events': [[2, 'closed'], [7, 'obstruct'], [15, 'edge'], [16, 'obstruct'], [18, 'closed']]}, ['done', 'reopen', 'reopen', 'reopen', 'done'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 3', {'events': [[1, 'obstruct'], [13, 'edge'], [21, 'obstruct'], [26, 'unblock'], [27, 'obstruct'], [32, 'edge'], [40, 'obstruct'], [48, 'obstruct'], [56, 'unblock'], [64, 'closed']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'reopen', 'ignored', 'ignored', 'done']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: safety edge while nudging', {'events': [[1, 'obstruct'], [2, 'obstruct'], [3, 'obstruct'], [4, 'edge'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'reopen', 'ignored']), ('control 45', {'events': [[5, 'edge'], [17, 'closed'], [22, 'obstruct'], [24, 'closed']]}, ['reopen', 'done', 'reopen', 'done']), ('control 48', {'events': [[2, 'obstruct'], [7, 'obstruct'], [15, 'obstruct'], [27, 'obstruct'], [35, 'unblock']]}, ['reopen', 'reopen', 'nudge', 'ignored']), ('control 51', {'events': [[8, 'closed'], [9, 'closed'], [14, 'obstruct'], [26, 'closed'], [38, 'obstruct']]}, ['done', 'done', 'reopen', 'done', 'reopen'])]]\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":"4a2e333ddecb75e797c8daeba445eeb0c1a70f74216c9a0dccd0f1936489a6e0","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    count = 0\n    nudge = False\n    block_start = None\n    out = []\n    for t, ev in x['events']:\n        if ev == 'obstruct':\n            block_start = t\n            if nudge:\n                out.append('ignored')\n            else:\n                count += 1\n                if count >= 3 or t - block_start >= 20:\n                    nudge = True\n                    out.append('nudge')\n                else:\n                    out.append('reopen')\n        elif ev == 'unblock':\n            block_start = None\n        elif ev == 'edge':\n            out.append('reopen')\n        elif ev == 'closed':\n            count = 0\n            nudge = False\n            block_start = None\n            out.append('done')\n    return out\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: third obstruction', {'events': [[1, 'obstruct'], [2, 'unblock'], [3, 'obstruct'], [4, 'unblock'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('boundary: safety edge while nudging', {'events': [[1, 'obstruct'], [2, 'obstruct'], [3, 'obstruct'], [4, 'edge'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'reopen', 'ignored']), ('control 1', {'events': [[8, 'obstruct'], [13, 'closed'], [18, 'obstruct'], [26, 'edge'], [28, 'obstruct'], [29, 'obstruct'], [41, 'obstruct'], [42, 'obstruct'], [54, 'obstruct'], [66, 'closed']]}, ['reopen', 'done', 'reopen', 'reopen', 'reopen', 'nudge', 'ignored', 'ignored', 'ignored', 'done']), ('control 4', {'events': [[5, 'edge'], [10, 'unblock'], [11, 'obstruct'], [19, 'closed']]}, ['reopen', 'reopen', 'done']), ('control 7', {'events': [[2, 'unblock'], [10, 'edge'], [18, 'obstruct'], [23, 'unblock'], [28, 'edge'], [33, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'reopen'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 3', {'events': [[1, 'obstruct'], [13, 'edge'], [21, 'obstruct'], [26, 'unblock'], [27, 'obstruct'], [32, 'edge'], [40, 'obstruct'], [48, 'obstruct'], [56, 'unblock'], [64, 'closed']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'reopen', 'ignored', 'ignored', 'done']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('boundary: edge contacts do not count', {'events': [[1, 'obstruct'], [2, 'edge'], [3, 'unblock'], [4, 'obstruct'], [5, 'edge']]}, ['reopen', 'reopen', 'reopen', 'reopen']), ('control 12', {'events': [[5, 'obstruct'], [13, 'edge'], [15, 'unblock'], [16, 'obstruct'], [21, 'unblock'], [22, 'edge'], [30, 'closed'], [32, 'obstruct'], [44, 'edge']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'done', 'reopen', 'reopen']), ('control 15', {'events': [[8, 'obstruct'], [9, 'obstruct'], [10, 'obstruct'], [11, 'unblock'], [16, 'obstruct'], [24, 'obstruct'], [29, 'edge']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'ignored', 'reopen']), ('control 18', {'events': [[12, 'obstruct'], [20, 'obstruct'], [22, 'obstruct']]}, ['reopen', 'reopen', 'nudge'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 65', {'events': [[1, 'obstruct'], [13, 'edge'], [25, 'obstruct'], [37, 'unblock']]}, ['reopen', 'reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: curtain broken then blocked again', {'events': [[0, 'obstruct'], [5, 'unblock'], [15, 'obstruct'], [26, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('control 23', {'events': [[1, 'unblock'], [6, 'unblock'], [18, 'obstruct'], [30, 'closed']]}, ['reopen', 'done']), ('control 26', {'events': [[12, 'closed'], [13, 'closed'], [15, 'obstruct'], [17, 'obstruct'], [19, 'obstruct']]}, ['done', 'done', 'reopen', 'reopen', 'nudge']), ('control 29', {'events': [[8, 'edge'], [10, 'obstruct'], [12, 'obstruct'], [20, 'closed']]}, ['reopen', 'reopen', 'reopen', 'done'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('boundary: closing clears nudging', {'events': [[0, 'obstruct'], [1, 'obstruct'], [2, 'obstruct'], [3, 'closed'], [4, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'done', 'reopen']), ('boundary: third obstruction', {'events': [[1, 'obstruct'], [2, 'unblock'], [3, 'obstruct'], [4, 'unblock'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('control 34', {'events': [[8, 'edge'], [16, 'obstruct'], [24, 'obstruct'], [36, 'closed'], [48, 'obstruct'], [60, 'obstruct'], [62, 'obstruct'], [64, 'unblock'], [72, 'obstruct'], [80, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'done', 'reopen', 'reopen', 'nudge', 'ignored']), ('control 37', {'events': [[2, 'closed'], [4, 'closed'], [9, 'obstruct'], [21, 'edge']]}, ['done', 'done', 'reopen', 'reopen']), ('control 40', {'events': [[2, 'closed'], [7, 'obstruct'], [15, 'edge'], [16, 'obstruct'], [18, 'closed']]}, ['done', 'reopen', 'reopen', 'reopen', 'done'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 3', {'events': [[1, 'obstruct'], [13, 'edge'], [21, 'obstruct'], [26, 'unblock'], [27, 'obstruct'], [32, 'edge'], [40, 'obstruct'], [48, 'obstruct'], [56, 'unblock'], [64, 'closed']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'reopen', 'ignored', 'ignored', 'done']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: safety edge while nudging', {'events': [[1, 'obstruct'], [2, 'obstruct'], [3, 'obstruct'], [4, 'edge'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'reopen', 'ignored']), ('control 45', {'events': [[5, 'edge'], [17, 'closed'], [22, 'obstruct'], [24, 'closed']]}, ['reopen', 'done', 'reopen', 'done']), ('control 48', {'events': [[2, 'obstruct'], [7, 'obstruct'], [15, 'obstruct'], [27, 'obstruct'], [35, 'unblock']]}, ['reopen', 'reopen', 'nudge', 'ignored']), ('control 51', {'events': [[8, 'closed'], [9, 'closed'], [14, 'obstruct'], [26, 'closed'], [38, 'obstruct']]}, ['done', 'done', 'reopen', 'done', 'reopen'])]]\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":"7841febe5de2535c38704f8b5316e9b96286bab9e12a95114dba65ee18cf19bd","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    count = 0\n    nudge = False\n    block_start = None\n    out = []\n    for t, ev in x['events']:\n        if ev == 'obstruct':\n            if block_start is None:\n                block_start = t\n            if nudge:\n                out.append('ignored')\n            else:\n                count += 1\n                if count >= 3 or t - block_start >= 20:\n                    nudge = True\n                    out.append('nudge')\n                else:\n                    out.append('reopen')\n        elif ev == 'unblock':\n            block_start = None\n        elif ev == 'edge':\n            out.append('reopen')\n        elif ev == 'closed':\n            count = 0\n            nudge = False\n            block_start = None\n            out.append('done')\n    return out\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: third obstruction', {'events': [[1, 'obstruct'], [2, 'unblock'], [3, 'obstruct'], [4, 'unblock'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('boundary: safety edge while nudging', {'events': [[1, 'obstruct'], [2, 'obstruct'], [3, 'obstruct'], [4, 'edge'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'reopen', 'ignored']), ('control 1', {'events': [[8, 'obstruct'], [13, 'closed'], [18, 'obstruct'], [26, 'edge'], [28, 'obstruct'], [29, 'obstruct'], [41, 'obstruct'], [42, 'obstruct'], [54, 'obstruct'], [66, 'closed']]}, ['reopen', 'done', 'reopen', 'reopen', 'reopen', 'nudge', 'ignored', 'ignored', 'ignored', 'done']), ('control 4', {'events': [[5, 'edge'], [10, 'unblock'], [11, 'obstruct'], [19, 'closed']]}, ['reopen', 'reopen', 'done']), ('control 7', {'events': [[2, 'unblock'], [10, 'edge'], [18, 'obstruct'], [23, 'unblock'], [28, 'edge'], [33, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'reopen'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 3', {'events': [[1, 'obstruct'], [13, 'edge'], [21, 'obstruct'], [26, 'unblock'], [27, 'obstruct'], [32, 'edge'], [40, 'obstruct'], [48, 'obstruct'], [56, 'unblock'], [64, 'closed']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'reopen', 'ignored', 'ignored', 'done']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('boundary: edge contacts do not count', {'events': [[1, 'obstruct'], [2, 'edge'], [3, 'unblock'], [4, 'obstruct'], [5, 'edge']]}, ['reopen', 'reopen', 'reopen', 'reopen']), ('control 12', {'events': [[5, 'obstruct'], [13, 'edge'], [15, 'unblock'], [16, 'obstruct'], [21, 'unblock'], [22, 'edge'], [30, 'closed'], [32, 'obstruct'], [44, 'edge']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'done', 'reopen', 'reopen']), ('control 15', {'events': [[8, 'obstruct'], [9, 'obstruct'], [10, 'obstruct'], [11, 'unblock'], [16, 'obstruct'], [24, 'obstruct'], [29, 'edge']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'ignored', 'reopen']), ('control 18', {'events': [[12, 'obstruct'], [20, 'obstruct'], [22, 'obstruct']]}, ['reopen', 'reopen', 'nudge'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 65', {'events': [[1, 'obstruct'], [13, 'edge'], [25, 'obstruct'], [37, 'unblock']]}, ['reopen', 'reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: curtain broken then blocked again', {'events': [[0, 'obstruct'], [5, 'unblock'], [15, 'obstruct'], [26, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('control 23', {'events': [[1, 'unblock'], [6, 'unblock'], [18, 'obstruct'], [30, 'closed']]}, ['reopen', 'done']), ('control 26', {'events': [[12, 'closed'], [13, 'closed'], [15, 'obstruct'], [17, 'obstruct'], [19, 'obstruct']]}, ['done', 'done', 'reopen', 'reopen', 'nudge']), ('control 29', {'events': [[8, 'edge'], [10, 'obstruct'], [12, 'obstruct'], [20, 'closed']]}, ['reopen', 'reopen', 'reopen', 'done'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('boundary: closing clears nudging', {'events': [[0, 'obstruct'], [1, 'obstruct'], [2, 'obstruct'], [3, 'closed'], [4, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'done', 'reopen']), ('boundary: third obstruction', {'events': [[1, 'obstruct'], [2, 'unblock'], [3, 'obstruct'], [4, 'unblock'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge']), ('control 34', {'events': [[8, 'edge'], [16, 'obstruct'], [24, 'obstruct'], [36, 'closed'], [48, 'obstruct'], [60, 'obstruct'], [62, 'obstruct'], [64, 'unblock'], [72, 'obstruct'], [80, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'done', 'reopen', 'reopen', 'nudge', 'ignored']), ('control 37', {'events': [[2, 'closed'], [4, 'closed'], [9, 'obstruct'], [21, 'edge']]}, ['done', 'done', 'reopen', 'reopen']), ('control 40', {'events': [[2, 'closed'], [7, 'obstruct'], [15, 'edge'], [16, 'obstruct'], [18, 'closed']]}, ['done', 'reopen', 'reopen', 'reopen', 'done'])], [('regression: curtain held for twenty seconds', {'events': [[0, 'obstruct'], [20, 'obstruct']]}, ['reopen', 'nudge']), ('control 10', {'events': [[8, 'edge'], [13, 'obstruct'], [18, 'edge'], [30, 'unblock'], [35, 'obstruct'], [40, 'obstruct'], [42, 'unblock']]}, ['reopen', 'reopen', 'reopen', 'reopen', 'nudge']), ('sampled regression 3', {'events': [[1, 'obstruct'], [13, 'edge'], [21, 'obstruct'], [26, 'unblock'], [27, 'obstruct'], [32, 'edge'], [40, 'obstruct'], [48, 'obstruct'], [56, 'unblock'], [64, 'closed']]}, ['reopen', 'reopen', 'nudge', 'ignored', 'reopen', 'ignored', 'ignored', 'done']), ('control 64', {'events': [[8, 'obstruct'], [13, 'edge'], [18, 'unblock'], [26, 'unblock'], [34, 'obstruct'], [36, 'obstruct']]}, ['reopen', 'reopen', 'reopen', 'nudge']), ('boundary: safety edge while nudging', {'events': [[1, 'obstruct'], [2, 'obstruct'], [3, 'obstruct'], [4, 'edge'], [5, 'obstruct']]}, ['reopen', 'reopen', 'nudge', 'reopen', 'ignored']), ('control 45', {'events': [[5, 'edge'], [17, 'closed'], [22, 'obstruct'], [24, 'closed']]}, ['reopen', 'done', 'reopen', 'done']), ('control 48', {'events': [[2, 'obstruct'], [7, 'obstruct'], [15, 'obstruct'], [27, 'obstruct'], [35, 'unblock']]}, ['reopen', 'reopen', 'nudge', 'ignored']), ('control 51', {'events': [[8, 'closed'], [9, 'closed'], [14, 'obstruct'], [26, 'closed'], [38, 'obstruct']]}, ['done', 'done', 'reopen', 'done', 'reopen'])]]\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 lift-control contract for a bounded teaching model; it makes no claim of conformance to any lift code or vendor dispatcher and omits real safety cases. 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-elevator_dispatch_scheduling-door-obstruction-nudging-continuous-blockage-timer","generated_at":"2026-09-29T14:47:55.003040+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Lift group controllers make these decisions many times per minute; a wrong answer strands passengers, wastes trips or overrides a safety rule.","repair":"Start the timer at the first obstruction of an unbroken blockage and clear it on unblock.","root_cause":"Every obstruction restarts the blockage timer.","sha256":"d8bbbc96d22a98e2a5752a0f18c2316c9406ef355170edad1e986fac434636ea","title":"Door obstruction reopen and nudging: continuous blockage timer · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":40.883,"exit_code":1,"observations":[{"actual":["reopen","nudge"],"check":"regression: curtain held for twenty seconds","expected":["reopen","nudge"],"passed":true},{"actual":["reopen","reopen","reopen","nudge","ignored"],"check":"control 10","expected":["reopen","reopen","reopen","reopen","nudge"],"passed":false},{"actual":["reopen","reopen","nudge","ignored"],"check":"control 64","expected":["reopen","reopen","reopen","nudge"],"passed":false},{"actual":["reopen","reopen","nudge"],"check":"boundary: third obstruction","expected":["reopen","reopen","nudge"],"passed":true},{"actual":["reopen","reopen","nudge","reopen","ignored"],"check":"boundary: safety edge while nudging","expected":["reopen","reopen","nudge","reopen","ignored"],"passed":true},{"actual":["reopen","done","reopen","reopen","reopen","nudge","ignored","ignored","ignored","done"],"check":"control 1","expected":["reopen","done","reopen","reopen","reopen","nudge","ignored","ignored","ignored","done"],"passed":true},{"actual":["reopen","reopen","done"],"check":"control 4","expected":["reopen","reopen","done"],"passed":true},{"actual":["reopen","reopen","reopen","reopen"],"check":"control 7","expected":["reopen","reopen","reopen","reopen"],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"regression: curtain held for twenty seconds\", \"actual\": [\"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"control 10\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"nudge\", \"ignored\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"passed\": false}, {\"check\": \"control 64\", \"actual\": [\"reopen\", \"reopen\", \"nudge\", \"ignored\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"passed\": false}, {\"check\": \"boundary: third obstruction\", \"actual\": [\"reopen\", \"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"boundary: safety edge while nudging\", \"actual\": [\"reopen\", \"reopen\", \"nudge\", \"reopen\", \"ignored\"], \"expected\": [\"reopen\", \"reopen\", \"nudge\", \"reopen\", \"ignored\"], \"passed\": true}, {\"check\": \"control 1\", \"actual\": [\"reopen\", \"done\", \"reopen\", \"reopen\", \"reopen\", \"nudge\", \"ignored\", \"ignored\", \"ignored\", \"done\"], \"expected\": [\"reopen\", \"done\", \"reopen\", \"reopen\", \"reopen\", \"nudge\", \"ignored\", \"ignored\", \"ignored\", \"done\"], \"passed\": true}, {\"check\": \"control 4\", \"actual\": [\"reopen\", \"reopen\", \"done\"], \"expected\": [\"reopen\", \"reopen\", \"done\"], \"passed\": true}, {\"check\": \"control 7\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\"], \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":41.131,"exit_code":1,"observations":[{"actual":["reopen","reopen"],"check":"regression: curtain held for twenty seconds","expected":["reopen","nudge"],"passed":false},{"actual":["reopen","reopen","reopen","reopen","nudge"],"check":"control 10","expected":["reopen","reopen","reopen","reopen","nudge"],"passed":true},{"actual":["reopen","reopen","reopen","nudge"],"check":"control 64","expected":["reopen","reopen","reopen","nudge"],"passed":true},{"actual":["reopen","reopen","nudge"],"check":"boundary: third obstruction","expected":["reopen","reopen","nudge"],"passed":true},{"actual":["reopen","reopen","nudge","reopen","ignored"],"check":"boundary: safety edge while nudging","expected":["reopen","reopen","nudge","reopen","ignored"],"passed":true},{"actual":["reopen","done","reopen","reopen","reopen","nudge","ignored","ignored","ignored","done"],"check":"control 1","expected":["reopen","done","reopen","reopen","reopen","nudge","ignored","ignored","ignored","done"],"passed":true},{"actual":["reopen","reopen","done"],"check":"control 4","expected":["reopen","reopen","done"],"passed":true},{"actual":["reopen","reopen","reopen","reopen"],"check":"control 7","expected":["reopen","reopen","reopen","reopen"],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"regression: curtain held for twenty seconds\", \"actual\": [\"reopen\", \"reopen\"], \"expected\": [\"reopen\", \"nudge\"], \"passed\": false}, {\"check\": \"control 10\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"control 64\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"boundary: third obstruction\", \"actual\": [\"reopen\", \"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"boundary: safety edge while nudging\", \"actual\": [\"reopen\", \"reopen\", \"nudge\", \"reopen\", \"ignored\"], \"expected\": [\"reopen\", \"reopen\", \"nudge\", \"reopen\", \"ignored\"], \"passed\": true}, {\"check\": \"control 1\", \"actual\": [\"reopen\", \"done\", \"reopen\", \"reopen\", \"reopen\", \"nudge\", \"ignored\", \"ignored\", \"ignored\", \"done\"], \"expected\": [\"reopen\", \"done\", \"reopen\", \"reopen\", \"reopen\", \"nudge\", \"ignored\", \"ignored\", \"ignored\", \"done\"], \"passed\": true}, {\"check\": \"control 4\", \"actual\": [\"reopen\", \"reopen\", \"done\"], \"expected\": [\"reopen\", \"reopen\", \"done\"], \"passed\": true}, {\"check\": \"control 7\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\"], \"passed\": true}], \"passed\": false}\n"},"fixed":{"elapsed_ms":42.415,"exit_code":0,"observations":[{"actual":["reopen","nudge"],"check":"regression: curtain held for twenty seconds","expected":["reopen","nudge"],"passed":true},{"actual":["reopen","reopen","reopen","reopen","nudge"],"check":"control 10","expected":["reopen","reopen","reopen","reopen","nudge"],"passed":true},{"actual":["reopen","reopen","reopen","nudge"],"check":"control 64","expected":["reopen","reopen","reopen","nudge"],"passed":true},{"actual":["reopen","reopen","nudge"],"check":"boundary: third obstruction","expected":["reopen","reopen","nudge"],"passed":true},{"actual":["reopen","reopen","nudge","reopen","ignored"],"check":"boundary: safety edge while nudging","expected":["reopen","reopen","nudge","reopen","ignored"],"passed":true},{"actual":["reopen","done","reopen","reopen","reopen","nudge","ignored","ignored","ignored","done"],"check":"control 1","expected":["reopen","done","reopen","reopen","reopen","nudge","ignored","ignored","ignored","done"],"passed":true},{"actual":["reopen","reopen","done"],"check":"control 4","expected":["reopen","reopen","done"],"passed":true},{"actual":["reopen","reopen","reopen","reopen"],"check":"control 7","expected":["reopen","reopen","reopen","reopen"],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"regression: curtain held for twenty seconds\", \"actual\": [\"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"control 10\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"control 64\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"boundary: third obstruction\", \"actual\": [\"reopen\", \"reopen\", \"nudge\"], \"expected\": [\"reopen\", \"reopen\", \"nudge\"], \"passed\": true}, {\"check\": \"boundary: safety edge while nudging\", \"actual\": [\"reopen\", \"reopen\", \"nudge\", \"reopen\", \"ignored\"], \"expected\": [\"reopen\", \"reopen\", \"nudge\", \"reopen\", \"ignored\"], \"passed\": true}, {\"check\": \"control 1\", \"actual\": [\"reopen\", \"done\", \"reopen\", \"reopen\", \"reopen\", \"nudge\", \"ignored\", \"ignored\", \"ignored\", \"done\"], \"expected\": [\"reopen\", \"done\", \"reopen\", \"reopen\", \"reopen\", \"nudge\", \"ignored\", \"ignored\", \"ignored\", \"done\"], \"passed\": true}, {\"check\": \"control 4\", \"actual\": [\"reopen\", \"reopen\", \"done\"], \"expected\": [\"reopen\", \"reopen\", \"done\"], \"passed\": true}, {\"check\": \"control 7\", \"actual\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\"], \"expected\": [\"reopen\", \"reopen\", \"reopen\", \"reopen\"], \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}