{"abstract":"A train that has stood exactly two minutes is refused the call-on.","category":"Railway interlocking logic","checks":8,"contract":"Without a route the answer is none. With the section ahead clear the main aspect is given. Into an occupied section a call-on is given only if the train has stood at the signal for at least 120 s and is stationary (0 km/h), the gap to the standing train is at least 20 m and that train is not moving; otherwise none.","evaluation_group":"w2-railway_interlocking_logic-call-on-permissive","failed_approach":"Comparing seconds against a threshold of 2 treats the limit as minutes and admits trains that barely stopped.","family":"w2-railway_interlocking_logic-call-on-permissive-standing-time-boundary","id":"FA-67201","implementations":{"attempt":{"sha256":"e9beeb2c4905b6038998975b25523d9755d34316f5ea0449d311dc36e7c0ff94","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    if not x['route_set']:\n        return 'none'\n    if not x['ahead_occupied']:\n        return 'main'\n    if x['stand_s'] < 2 or x['speed_kmh'] > 0:\n        return 'none'\n    if x['gap_m'] < 20:\n        return 'none'\n    if x['platform_train_moving']:\n        return 'none'\n    return 'call-on'\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('control 27', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 1', {'route_set': True, 'ahead_occupied': False, 'stand_s': 300, 'speed_kmh': 0, 'gap_m': 60, 'platform_train_moving': False}, 'main'), ('control 4', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 3, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 7', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 3, 'gap_m': 19, 'platform_train_moving': False}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: rolling at call-on speed', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 12, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: platform train moving far away', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 12', {'route_set': True, 'ahead_occupied': True, 'stand_s': 300, 'speed_kmh': 0, 'gap_m': 5, 'platform_train_moving': False}, 'none'), ('control 15', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': True}, 'none'), ('control 18', {'route_set': True, 'ahead_occupied': True, 'stand_s': 0, 'speed_kmh': 0, 'gap_m': 20, 'platform_train_moving': True}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('control 80', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 21, 'platform_train_moving': False}, 'none'), ('boundary: platform train moving far away', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 23', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 15, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('control 26', {'route_set': False, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 19, 'platform_train_moving': False}, 'none'), ('control 29', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': False}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 27', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('boundary: gap exactly at the minimum', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 20, 'platform_train_moving': False}, 'call-on'), ('boundary: clear platform for a moving train', {'route_set': True, 'ahead_occupied': False, 'stand_s': 0, 'speed_kmh': 40, 'gap_m': 100, 'platform_train_moving': False}, 'main'), ('control 34', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 20, 'gap_m': 60, 'platform_train_moving': False}, 'none'), ('control 37', {'route_set': True, 'ahead_occupied': True, 'stand_s': 0, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': False}, 'none'), ('control 40', {'route_set': True, 'ahead_occupied': True, 'stand_s': 121, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('boundary: no route', {'route_set': False, 'ahead_occupied': False, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 45', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 5, 'platform_train_moving': False}, 'none'), ('control 48', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 20, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('control 51', {'route_set': True, 'ahead_occupied': False, 'stand_s': 300, 'speed_kmh': 3, 'gap_m': 20, 'platform_train_moving': False}, 'main')]]\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":"3c0f5cd7149dd126f6185b5048c38f2bae5d8022aeeb5ec60be604b329040398","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    if not x['route_set']:\n        return 'none'\n    if not x['ahead_occupied']:\n        return 'main'\n    if x['stand_s'] <= 120 or x['speed_kmh'] > 0:\n        return 'none'\n    if x['gap_m'] < 20:\n        return 'none'\n    if x['platform_train_moving']:\n        return 'none'\n    return 'call-on'\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('control 27', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 1', {'route_set': True, 'ahead_occupied': False, 'stand_s': 300, 'speed_kmh': 0, 'gap_m': 60, 'platform_train_moving': False}, 'main'), ('control 4', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 3, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 7', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 3, 'gap_m': 19, 'platform_train_moving': False}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: rolling at call-on speed', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 12, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: platform train moving far away', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 12', {'route_set': True, 'ahead_occupied': True, 'stand_s': 300, 'speed_kmh': 0, 'gap_m': 5, 'platform_train_moving': False}, 'none'), ('control 15', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': True}, 'none'), ('control 18', {'route_set': True, 'ahead_occupied': True, 'stand_s': 0, 'speed_kmh': 0, 'gap_m': 20, 'platform_train_moving': True}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('control 80', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 21, 'platform_train_moving': False}, 'none'), ('boundary: platform train moving far away', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 23', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 15, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('control 26', {'route_set': False, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 19, 'platform_train_moving': False}, 'none'), ('control 29', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': False}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 27', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('boundary: gap exactly at the minimum', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 20, 'platform_train_moving': False}, 'call-on'), ('boundary: clear platform for a moving train', {'route_set': True, 'ahead_occupied': False, 'stand_s': 0, 'speed_kmh': 40, 'gap_m': 100, 'platform_train_moving': False}, 'main'), ('control 34', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 20, 'gap_m': 60, 'platform_train_moving': False}, 'none'), ('control 37', {'route_set': True, 'ahead_occupied': True, 'stand_s': 0, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': False}, 'none'), ('control 40', {'route_set': True, 'ahead_occupied': True, 'stand_s': 121, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('boundary: no route', {'route_set': False, 'ahead_occupied': False, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 45', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 5, 'platform_train_moving': False}, 'none'), ('control 48', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 20, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('control 51', {'route_set': True, 'ahead_occupied': False, 'stand_s': 300, 'speed_kmh': 3, 'gap_m': 20, 'platform_train_moving': False}, 'main')]]\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":"184fc20f84a3696e85a03b6c697029776460b006ba9c01e9bf81df4ffa8a700f","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    if not x['route_set']:\n        return 'none'\n    if not x['ahead_occupied']:\n        return 'main'\n    if x['stand_s'] < 120 or x['speed_kmh'] > 0:\n        return 'none'\n    if x['gap_m'] < 20:\n        return 'none'\n    if x['platform_train_moving']:\n        return 'none'\n    return 'call-on'\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('control 27', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 1', {'route_set': True, 'ahead_occupied': False, 'stand_s': 300, 'speed_kmh': 0, 'gap_m': 60, 'platform_train_moving': False}, 'main'), ('control 4', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 3, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 7', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 3, 'gap_m': 19, 'platform_train_moving': False}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: rolling at call-on speed', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 12, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: platform train moving far away', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 12', {'route_set': True, 'ahead_occupied': True, 'stand_s': 300, 'speed_kmh': 0, 'gap_m': 5, 'platform_train_moving': False}, 'none'), ('control 15', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': True}, 'none'), ('control 18', {'route_set': True, 'ahead_occupied': True, 'stand_s': 0, 'speed_kmh': 0, 'gap_m': 20, 'platform_train_moving': True}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('control 80', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 21, 'platform_train_moving': False}, 'none'), ('boundary: platform train moving far away', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': True}, 'none'), ('control 23', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 15, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('control 26', {'route_set': False, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 19, 'platform_train_moving': False}, 'none'), ('control 29', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': False}, 'none')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 27', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('boundary: gap exactly at the minimum', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 20, 'platform_train_moving': False}, 'call-on'), ('boundary: clear platform for a moving train', {'route_set': True, 'ahead_occupied': False, 'stand_s': 0, 'speed_kmh': 40, 'gap_m': 100, 'platform_train_moving': False}, 'main'), ('control 34', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 20, 'gap_m': 60, 'platform_train_moving': False}, 'none'), ('control 37', {'route_set': True, 'ahead_occupied': True, 'stand_s': 0, 'speed_kmh': 20, 'gap_m': 19, 'platform_train_moving': False}, 'none'), ('control 40', {'route_set': True, 'ahead_occupied': True, 'stand_s': 121, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on')], [('regression: stood exactly two minutes', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'call-on'), ('boundary: stood one second short', {'route_set': True, 'ahead_occupied': True, 'stand_s': 119, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('sampled regression 70', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 200, 'platform_train_moving': False}, 'call-on'), ('boundary: no route', {'route_set': False, 'ahead_occupied': False, 'stand_s': 200, 'speed_kmh': 0, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('boundary: creeping at walking pace', {'route_set': True, 'ahead_occupied': True, 'stand_s': 200, 'speed_kmh': 3, 'gap_m': 100, 'platform_train_moving': False}, 'none'), ('control 45', {'route_set': True, 'ahead_occupied': True, 'stand_s': 120, 'speed_kmh': 0, 'gap_m': 5, 'platform_train_moving': False}, 'none'), ('control 48', {'route_set': True, 'ahead_occupied': True, 'stand_s': 30, 'speed_kmh': 20, 'gap_m': 200, 'platform_train_moving': False}, 'none'), ('control 51', {'route_set': True, 'ahead_occupied': False, 'stand_s': 300, 'speed_kmh': 3, 'gap_m': 20, 'platform_train_moving': False}, 'main')]]\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 interlocking contract for a bounded teaching model; it makes no claim of conformance to any railway signalling standard 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-railway_interlocking_logic-call-on-permissive-standing-time-boundary","generated_at":"2026-09-29T14:47:50.664814+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Interlocking logic decides whether trains may be given authority; a wrong decision at this point either grants unsafe movements or strands traffic.","repair":"Refuse only when the train has stood less than 120 s.","root_cause":"The standing-time comparison is inclusive.","sha256":"ae81b1b4dec128e532952f8bc217928b5ae8c4d69e4d3f8f77b13fc266d28c3c","title":"Call-on permissive move authorisation: standing time boundary · case 01","variant":1,"variant_policy":"Five numbered 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