{"abstract":"Journeys marked interline-permitted are rejected and forbidden ones pass.","category":"Airline fare rule evaluation","checks":9,"contract":"Input {'components':[[RT amount, carrier, tariff]],'interline_ok'}. Each component contributes half its RT amount rounded up to a whole unit. All components must share one tariff ('ERR_TARIFF', checked first); multiple carriers require interline_ok ('ERR_CARRIER'). Return the summed halves.","evaluation_group":"w2-airline-fare-rules-half-round-trip-combination","failed_approach":"Tolerating two carriers still allows forbidden two-carrier combinations.","family":"w2-airline-fare-rules-half-round-trip-combination-interline-flag-inverted","id":"FA-66706","implementations":{"attempt":{"sha256":"34d130424e79b0bed544cd10a5a8e70eeb79129822adb5fded14fbcdef3637e7","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport math\nN = 1\nobservations = []\ndef solve(x):\n    halves = []\n    for amt, carrier, tariff in x['components']:\n        halves.append(math.ceil(amt / 2))\n    tariffs = {c[2] for c in x['components']}\n    carriers = {c[1] for c in x['components']}\n    if len(tariffs) > 1: return 'ERR_TARIFF'\n    if len(carriers) > 2 and not x['interline_ok']: return 'ERR_CARRIER'\n    return sum(halves)\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [659, 'AA', 'PUB']], 'interline_ok': False}, 731], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [601, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1202, 'LH', 'NEG']], 'interline_ok': False}, 601], ['sampled case 1', {'components': [[1106, 'AA', 'PUB'], [904, 'AA', 'PUB'], [1089, 'AA', 'PUB'], [355, 'LH', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['sampled case 2', {'components': [[898, 'AA', 'PUB'], [1009, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['sampled case 3', {'components': [[350, 'AA', 'NEG'], [1535, 'BA', 'NEG'], [587, 'BA', 'PUB'], [220, 'AA', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF']], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [661, 'AA', 'PUB']], 'interline_ok': False}, 732], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1002, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [602, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1204, 'LH', 'NEG']], 'interline_ok': False}, 602], ['sampled case 1', {'components': [[1455, 'LH', 'NEG'], [1654, 'AA', 'NEG'], [1091, 'BA', 'NEG'], [1846, 'LH', 'NEG']], 'interline_ok': True}, 3024], ['sampled case 2', {'components': [[887, 'LH', 'NEG']], 'interline_ok': False}, 444], ['sampled case 3', {'components': [[600, 'BA', 'PUB']], 'interline_ok': False}, 300]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [663, 'AA', 'PUB']], 'interline_ok': False}, 733], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1003, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [603, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1206, 'LH', 'NEG']], 'interline_ok': False}, 603], ['sampled case 1', {'components': [[1872, 'AA', 'NEG'], [1205, 'AA', 'NEG'], [851, 'AA', 'NEG'], [434, 'LH', 'NEG']], 'interline_ok': True}, 2182], ['sampled case 2', {'components': [[1006, 'AA', 'NEG'], [1939, 'BA', 'PUB'], [850, 'AA', 'PUB'], [1563, 'AA', 'PUB']], 'interline_ok': False}, 'ERR_TARIFF'], ['sampled case 3', {'components': [[305, 'BA', 'PUB']], 'interline_ok': False}, 153]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [665, 'AA', 'PUB']], 'interline_ok': False}, 734], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1004, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [604, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1208, 'LH', 'NEG']], 'interline_ok': False}, 604], ['sampled case 1', {'components': [[873, 'AA', 'PUB'], [230, 'BA', 'PUB']], 'interline_ok': True}, 552], ['sampled case 2', {'components': [[1819, 'AA', 'NEG'], [1744, 'AA', 'NEG'], [1758, 'BA', 'NEG']], 'interline_ok': False}, 'ERR_CARRIER'], ['sampled case 3', {'components': [[818, 'LH', 'NEG'], [1794, 'AA', 'NEG'], [1837, 'AA', 'NEG'], [631, 'AA', 'NEG']], 'interline_ok': True}, 2541]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [667, 'AA', 'PUB']], 'interline_ok': False}, 735], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1005, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [605, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1210, 'LH', 'NEG']], 'interline_ok': False}, 605], ['sampled case 1', {'components': [[1193, 'BA', 'NEG'], [1868, 'AA', 'PUB']], 'interline_ok': False}, 'ERR_TARIFF'], ['sampled case 2', {'components': [[1981, 'AA', 'NEG']], 'interline_ok': True}, 991], ['sampled case 3', {'components': [[1746, 'LH', 'NEG'], [1675, 'LH', 'NEG'], [1321, 'AA', 'PUB']], 'interline_ok': True}, 'ERR_TARIFF']]]\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":"a6956aecb99908f7ad8be7a249ee6bc0a91bdc675a4eda250f5611d77d489591","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport math\nN = 1\nobservations = []\ndef solve(x):\n    halves = []\n    for amt, carrier, tariff in x['components']:\n        halves.append(math.ceil(amt / 2))\n    tariffs = {c[2] for c in x['components']}\n    carriers = {c[1] for c in x['components']}\n    if len(tariffs) > 1: return 'ERR_TARIFF'\n    if len(carriers) > 1 and x['interline_ok']: return 'ERR_CARRIER'\n    return sum(halves)\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [659, 'AA', 'PUB']], 'interline_ok': False}, 731], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [601, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1202, 'LH', 'NEG']], 'interline_ok': False}, 601], ['sampled case 1', {'components': [[1106, 'AA', 'PUB'], [904, 'AA', 'PUB'], [1089, 'AA', 'PUB'], [355, 'LH', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['sampled case 2', {'components': [[898, 'AA', 'PUB'], [1009, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['sampled case 3', {'components': [[350, 'AA', 'NEG'], [1535, 'BA', 'NEG'], [587, 'BA', 'PUB'], [220, 'AA', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF']], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [661, 'AA', 'PUB']], 'interline_ok': False}, 732], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1002, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [602, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1204, 'LH', 'NEG']], 'interline_ok': False}, 602], ['sampled case 1', {'components': [[1455, 'LH', 'NEG'], [1654, 'AA', 'NEG'], [1091, 'BA', 'NEG'], [1846, 'LH', 'NEG']], 'interline_ok': True}, 3024], ['sampled case 2', {'components': [[887, 'LH', 'NEG']], 'interline_ok': False}, 444], ['sampled case 3', {'components': [[600, 'BA', 'PUB']], 'interline_ok': False}, 300]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [663, 'AA', 'PUB']], 'interline_ok': False}, 733], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1003, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [603, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1206, 'LH', 'NEG']], 'interline_ok': False}, 603], ['sampled case 1', {'components': [[1872, 'AA', 'NEG'], [1205, 'AA', 'NEG'], [851, 'AA', 'NEG'], [434, 'LH', 'NEG']], 'interline_ok': True}, 2182], ['sampled case 2', {'components': [[1006, 'AA', 'NEG'], [1939, 'BA', 'PUB'], [850, 'AA', 'PUB'], [1563, 'AA', 'PUB']], 'interline_ok': False}, 'ERR_TARIFF'], ['sampled case 3', {'components': [[305, 'BA', 'PUB']], 'interline_ok': False}, 153]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [665, 'AA', 'PUB']], 'interline_ok': False}, 734], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1004, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [604, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1208, 'LH', 'NEG']], 'interline_ok': False}, 604], ['sampled case 1', {'components': [[873, 'AA', 'PUB'], [230, 'BA', 'PUB']], 'interline_ok': True}, 552], ['sampled case 2', {'components': [[1819, 'AA', 'NEG'], [1744, 'AA', 'NEG'], [1758, 'BA', 'NEG']], 'interline_ok': False}, 'ERR_CARRIER'], ['sampled case 3', {'components': [[818, 'LH', 'NEG'], [1794, 'AA', 'NEG'], [1837, 'AA', 'NEG'], [631, 'AA', 'NEG']], 'interline_ok': True}, 2541]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [667, 'AA', 'PUB']], 'interline_ok': False}, 735], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1005, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [605, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1210, 'LH', 'NEG']], 'interline_ok': False}, 605], ['sampled case 1', {'components': [[1193, 'BA', 'NEG'], [1868, 'AA', 'PUB']], 'interline_ok': False}, 'ERR_TARIFF'], ['sampled case 2', {'components': [[1981, 'AA', 'NEG']], 'interline_ok': True}, 991], ['sampled case 3', {'components': [[1746, 'LH', 'NEG'], [1675, 'LH', 'NEG'], [1321, 'AA', 'PUB']], 'interline_ok': True}, 'ERR_TARIFF']]]\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":"efbf11e2101c354605ab9730e0ba7b10b941c644c09f4f1cd0d89cd927d1fb75","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport math\nN = 1\nobservations = []\ndef solve(x):\n    halves = []\n    for amt, carrier, tariff in x['components']:\n        halves.append(math.ceil(amt / 2))\n    tariffs = {c[2] for c in x['components']}\n    carriers = {c[1] for c in x['components']}\n    if len(tariffs) > 1: return 'ERR_TARIFF'\n    if len(carriers) > 1 and not x['interline_ok']: return 'ERR_CARRIER'\n    return sum(halves)\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [659, 'AA', 'PUB']], 'interline_ok': False}, 731], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [601, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1202, 'LH', 'NEG']], 'interline_ok': False}, 601], ['sampled case 1', {'components': [[1106, 'AA', 'PUB'], [904, 'AA', 'PUB'], [1089, 'AA', 'PUB'], [355, 'LH', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['sampled case 2', {'components': [[898, 'AA', 'PUB'], [1009, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['sampled case 3', {'components': [[350, 'AA', 'NEG'], [1535, 'BA', 'NEG'], [587, 'BA', 'PUB'], [220, 'AA', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF']], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [661, 'AA', 'PUB']], 'interline_ok': False}, 732], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1002, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [602, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1204, 'LH', 'NEG']], 'interline_ok': False}, 602], ['sampled case 1', {'components': [[1455, 'LH', 'NEG'], [1654, 'AA', 'NEG'], [1091, 'BA', 'NEG'], [1846, 'LH', 'NEG']], 'interline_ok': True}, 3024], ['sampled case 2', {'components': [[887, 'LH', 'NEG']], 'interline_ok': False}, 444], ['sampled case 3', {'components': [[600, 'BA', 'PUB']], 'interline_ok': False}, 300]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [663, 'AA', 'PUB']], 'interline_ok': False}, 733], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1003, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [603, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1206, 'LH', 'NEG']], 'interline_ok': False}, 603], ['sampled case 1', {'components': [[1872, 'AA', 'NEG'], [1205, 'AA', 'NEG'], [851, 'AA', 'NEG'], [434, 'LH', 'NEG']], 'interline_ok': True}, 2182], ['sampled case 2', {'components': [[1006, 'AA', 'NEG'], [1939, 'BA', 'PUB'], [850, 'AA', 'PUB'], [1563, 'AA', 'PUB']], 'interline_ok': False}, 'ERR_TARIFF'], ['sampled case 3', {'components': [[305, 'BA', 'PUB']], 'interline_ok': False}, 153]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [665, 'AA', 'PUB']], 'interline_ok': False}, 734], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1004, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [604, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1208, 'LH', 'NEG']], 'interline_ok': False}, 604], ['sampled case 1', {'components': [[873, 'AA', 'PUB'], [230, 'BA', 'PUB']], 'interline_ok': True}, 552], ['sampled case 2', {'components': [[1819, 'AA', 'NEG'], [1744, 'AA', 'NEG'], [1758, 'BA', 'NEG']], 'interline_ok': False}, 'ERR_CARRIER'], ['sampled case 3', {'components': [[818, 'LH', 'NEG'], [1794, 'AA', 'NEG'], [1837, 'AA', 'NEG'], [631, 'AA', 'NEG']], 'interline_ok': True}, 2541]], [['odd RT fares open jaw', {'components': [[801, 'AA', 'PUB'], [667, 'AA', 'PUB']], 'interline_ok': False}, 735], ['interline allowed', {'components': [[900, 'AA', 'PUB'], [1001, 'BA', 'PUB']], 'interline_ok': True}, 951], ['interline forbidden', {'components': [[900, 'AA', 'PUB'], [1005, 'BA', 'PUB']], 'interline_ok': False}, 'ERR_CARRIER'], ['third component other tariff', {'components': [[500, 'AA', 'PUB'], [601, 'AA', 'PUB'], [703, 'AA', 'NEG']], 'interline_ok': True}, 'ERR_TARIFF'], ['tariff and carrier both differ', {'components': [[500, 'AA', 'PUB'], [605, 'LH', 'NEG']], 'interline_ok': False}, 'ERR_TARIFF'], ['single even component', {'components': [[1210, 'LH', 'NEG']], 'interline_ok': False}, 605], ['sampled case 1', {'components': [[1193, 'BA', 'NEG'], [1868, 'AA', 'PUB']], 'interline_ok': False}, 'ERR_TARIFF'], ['sampled case 2', {'components': [[1981, 'AA', 'NEG']], 'interline_ok': True}, 991], ['sampled case 3', {'components': [[1746, 'LH', 'NEG'], [1675, 'LH', 'NEG'], [1321, 'AA', 'PUB']], 'interline_ok': True}, 'ERR_TARIFF']]]\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":"A stipulated toy fare-rule contract with invented constants; it is not an ATPCO or carrier tariff implementation and makes no claim of industry-standard conformance. 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-airline-fare-rules-half-round-trip-combination-interline-flag-inverted","generated_at":"2026-09-29T14:47:46.215087+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Open-jaw and end-on-end pricing combines half round-trip fares, subject to combinability conditions and per-component rounding.","repair":"Reject multiple carriers only when interline is not permitted.","root_cause":"The carrier check errors when interline is allowed.","sha256":"4704f9a816a96fefcce6e9d292018029fe1e3cdaeccb4d05af6029efd9d4d91c","title":"Interline permission read backwards · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":41.85,"exit_code":1,"observations":[{"actual":731,"check":"odd RT fares open jaw","expected":731,"passed":true},{"actual":951,"check":"interline allowed","expected":951,"passed":true},{"actual":951,"check":"interline forbidden","expected":"ERR_CARRIER","passed":false},{"actual":"ERR_TARIFF","check":"third component other tariff","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"tariff and carrier both differ","expected":"ERR_TARIFF","passed":true},{"actual":601,"check":"single even component","expected":601,"passed":true},{"actual":"ERR_TARIFF","check":"sampled case 1","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"sampled case 2","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"sampled case 3","expected":"ERR_TARIFF","passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"odd RT fares open jaw\", \"actual\": 731, \"expected\": 731, \"passed\": true}, {\"check\": \"interline allowed\", \"actual\": 951, \"expected\": 951, \"passed\": true}, {\"check\": \"interline forbidden\", \"actual\": 951, \"expected\": \"ERR_CARRIER\", \"passed\": false}, {\"check\": \"third component other tariff\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"tariff and carrier both differ\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"single even component\", \"actual\": 601, \"expected\": 601, \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"sampled case 2\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":39.28,"exit_code":1,"observations":[{"actual":731,"check":"odd RT fares open jaw","expected":731,"passed":true},{"actual":"ERR_CARRIER","check":"interline allowed","expected":951,"passed":false},{"actual":951,"check":"interline forbidden","expected":"ERR_CARRIER","passed":false},{"actual":"ERR_TARIFF","check":"third component other tariff","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"tariff and carrier both differ","expected":"ERR_TARIFF","passed":true},{"actual":601,"check":"single even component","expected":601,"passed":true},{"actual":"ERR_TARIFF","check":"sampled case 1","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"sampled case 2","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"sampled case 3","expected":"ERR_TARIFF","passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"odd RT fares open jaw\", \"actual\": 731, \"expected\": 731, \"passed\": true}, {\"check\": \"interline allowed\", \"actual\": \"ERR_CARRIER\", \"expected\": 951, \"passed\": false}, {\"check\": \"interline forbidden\", \"actual\": 951, \"expected\": \"ERR_CARRIER\", \"passed\": false}, {\"check\": \"third component other tariff\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"tariff and carrier both differ\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"single even component\", \"actual\": 601, \"expected\": 601, \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"sampled case 2\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}], \"passed\": false}\n"},"fixed":{"elapsed_ms":41.838,"exit_code":0,"observations":[{"actual":731,"check":"odd RT fares open jaw","expected":731,"passed":true},{"actual":951,"check":"interline allowed","expected":951,"passed":true},{"actual":"ERR_CARRIER","check":"interline forbidden","expected":"ERR_CARRIER","passed":true},{"actual":"ERR_TARIFF","check":"third component other tariff","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"tariff and carrier both differ","expected":"ERR_TARIFF","passed":true},{"actual":601,"check":"single even component","expected":601,"passed":true},{"actual":"ERR_TARIFF","check":"sampled case 1","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"sampled case 2","expected":"ERR_TARIFF","passed":true},{"actual":"ERR_TARIFF","check":"sampled case 3","expected":"ERR_TARIFF","passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"odd RT fares open jaw\", \"actual\": 731, \"expected\": 731, \"passed\": true}, {\"check\": \"interline allowed\", \"actual\": 951, \"expected\": 951, \"passed\": true}, {\"check\": \"interline forbidden\", \"actual\": \"ERR_CARRIER\", \"expected\": \"ERR_CARRIER\", \"passed\": true}, {\"check\": \"third component other tariff\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"tariff and carrier both differ\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"single even component\", \"actual\": 601, \"expected\": 601, \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"sampled case 2\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": \"ERR_TARIFF\", \"expected\": \"ERR_TARIFF\", \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}