{"abstract":"A 12-person party on a 20-minimum group fare gets two free tickets.","category":"Airline fare rule evaluation","checks":10,"contract":"Input {'pax','min_group','free_per','fare','disc_pct'}. Below min_group (total travellers) no discount and no free tickets. Otherwise one free ticket per free_per paying travellers (free = pax // (free_per+1)); each paying fare = fare*(100-disc)/100 rounded to cents, then multiplied. Return [paying, free, total r2].","evaluation_group":"w2-airline-fare-rules-group-fare-conductor","failed_approach":"Reporting free tickets while still charging everyone contradicts the ticket count.","family":"w2-airline-fare-rules-group-fare-conductor-free-below-minimum","id":"FA-66616","implementations":{"attempt":{"sha256":"ab1c7dcd144787b56c219c9580951f6ab626cfbd31c5646cbe3ebaeb48ff4053","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    n = x['pax']\n    if n < x['min_group']:\n        per = round(x['fare'], 2)\n        return [n, n // (x['free_per'] + 1), round(per * n, 2)]\n    free = n // (x['free_per'] + 1)\n    paying = n - free\n    per = round(x['fare'] * (100 - x['disc_pct']) / 100, 2)\n    return [paying, free, round(per * paying, 2)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 13}, [10, 0, 2174.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 200.95, 'disc_pct': 10}, [15, 0, 2712.75]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 35, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [33, 2, 10230.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 101.0, 'disc_pct': 10}, [12, 0, 1212.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 13, 'min_group': 20, 'free_per': 5, 'fare': 244.64, 'disc_pct': 12}, [13, 0, 3180.32]], ['sampled case 2', {'pax': 24, 'min_group': 20, 'free_per': 5, 'fare': 241.52, 'disc_pct': 20}, [20, 4, 3864.4]], ['sampled case 3', {'pax': 59, 'min_group': 20, 'free_per': 10, 'fare': 154.51, 'disc_pct': 15}, [54, 5, 7091.82]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 14}, [10, 0, 2149.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 201.95, 'disc_pct': 10}, [15, 0, 2726.25]], ['small party', {'pax': 8, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [8, 0, 960.0]], ['large group two free', {'pax': 36, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [34, 2, 10540.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 102.0, 'disc_pct': 10}, [12, 0, 1224.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 24, 'min_group': 15, 'free_per': 5, 'fare': 165.48, 'disc_pct': 15}, [20, 4, 2813.2]], ['sampled case 2', {'pax': 50, 'min_group': 20, 'free_per': 15, 'fare': 118.08, 'disc_pct': 10}, [47, 3, 4994.69]], ['sampled case 3', {'pax': 24, 'min_group': 20, 'free_per': 9, 'fare': 198.91, 'disc_pct': 7}, [22, 2, 4069.78]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 15}, [10, 0, 2124.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 202.95, 'disc_pct': 10}, [15, 0, 2739.9]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 37, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [35, 2, 10850.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 103.0, 'disc_pct': 10}, [12, 0, 1236.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 28, 'min_group': 20, 'free_per': 9, 'fare': 148.43, 'disc_pct': 15}, [26, 2, 3280.42]], ['sampled case 2', {'pax': 19, 'min_group': 10, 'free_per': 10, 'fare': 244.1, 'disc_pct': 12}, [18, 1, 3866.58]], ['sampled case 3', {'pax': 37, 'min_group': 20, 'free_per': 15, 'fare': 79.12, 'disc_pct': 5}, [35, 2, 2630.6]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 16}, [10, 0, 2099.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 203.95, 'disc_pct': 10}, [15, 0, 2753.4]], ['small party', {'pax': 8, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [8, 0, 960.0]], ['large group two free', {'pax': 38, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [36, 2, 11160.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 104.0, 'disc_pct': 10}, [12, 0, 1248.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 17, 'min_group': 20, 'free_per': 10, 'fare': 198.81, 'disc_pct': 7}, [17, 0, 3379.77]], ['sampled case 2', {'pax': 19, 'min_group': 15, 'free_per': 10, 'fare': 304.43, 'disc_pct': 5}, [18, 1, 5205.78]], ['sampled case 3', {'pax': 23, 'min_group': 15, 'free_per': 10, 'fare': 154.19, 'disc_pct': 7}, [21, 2, 3011.4]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 17}, [10, 0, 2074.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 204.95, 'disc_pct': 10}, [15, 0, 2766.9]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 39, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [37, 2, 11470.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 105.0, 'disc_pct': 10}, [12, 0, 1260.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 30, 'min_group': 15, 'free_per': 15, 'fare': 348.05, 'disc_pct': 12}, [29, 1, 8882.12]], ['sampled case 2', {'pax': 31, 'min_group': 15, 'free_per': 9, 'fare': 312.49, 'disc_pct': 12}, [28, 3, 7699.72]], ['sampled case 3', {'pax': 59, 'min_group': 20, 'free_per': 9, 'fare': 68.44, 'disc_pct': 10}, [54, 5, 3326.4]]]]\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":"974e206fe02cfa3f2984cdacc5d99357facf78bb2d17033724fc0abdf3409103","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    n = x['pax']\n    if n < x['min_group']:\n        per = round(x['fare'], 2)\n        free = n // (x['free_per'] + 1)\n        return [n - free, free, round(per * (n - free), 2)]\n    free = n // (x['free_per'] + 1)\n    paying = n - free\n    per = round(x['fare'] * (100 - x['disc_pct']) / 100, 2)\n    return [paying, free, round(per * paying, 2)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 13}, [10, 0, 2174.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 200.95, 'disc_pct': 10}, [15, 0, 2712.75]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 35, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [33, 2, 10230.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 101.0, 'disc_pct': 10}, [12, 0, 1212.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 13, 'min_group': 20, 'free_per': 5, 'fare': 244.64, 'disc_pct': 12}, [13, 0, 3180.32]], ['sampled case 2', {'pax': 24, 'min_group': 20, 'free_per': 5, 'fare': 241.52, 'disc_pct': 20}, [20, 4, 3864.4]], ['sampled case 3', {'pax': 59, 'min_group': 20, 'free_per': 10, 'fare': 154.51, 'disc_pct': 15}, [54, 5, 7091.82]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 14}, [10, 0, 2149.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 201.95, 'disc_pct': 10}, [15, 0, 2726.25]], ['small party', {'pax': 8, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [8, 0, 960.0]], ['large group two free', {'pax': 36, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [34, 2, 10540.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 102.0, 'disc_pct': 10}, [12, 0, 1224.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 24, 'min_group': 15, 'free_per': 5, 'fare': 165.48, 'disc_pct': 15}, [20, 4, 2813.2]], ['sampled case 2', {'pax': 50, 'min_group': 20, 'free_per': 15, 'fare': 118.08, 'disc_pct': 10}, [47, 3, 4994.69]], ['sampled case 3', {'pax': 24, 'min_group': 20, 'free_per': 9, 'fare': 198.91, 'disc_pct': 7}, [22, 2, 4069.78]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 15}, [10, 0, 2124.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 202.95, 'disc_pct': 10}, [15, 0, 2739.9]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 37, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [35, 2, 10850.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 103.0, 'disc_pct': 10}, [12, 0, 1236.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 28, 'min_group': 20, 'free_per': 9, 'fare': 148.43, 'disc_pct': 15}, [26, 2, 3280.42]], ['sampled case 2', {'pax': 19, 'min_group': 10, 'free_per': 10, 'fare': 244.1, 'disc_pct': 12}, [18, 1, 3866.58]], ['sampled case 3', {'pax': 37, 'min_group': 20, 'free_per': 15, 'fare': 79.12, 'disc_pct': 5}, [35, 2, 2630.6]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 16}, [10, 0, 2099.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 203.95, 'disc_pct': 10}, [15, 0, 2753.4]], ['small party', {'pax': 8, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [8, 0, 960.0]], ['large group two free', {'pax': 38, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [36, 2, 11160.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 104.0, 'disc_pct': 10}, [12, 0, 1248.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 17, 'min_group': 20, 'free_per': 10, 'fare': 198.81, 'disc_pct': 7}, [17, 0, 3379.77]], ['sampled case 2', {'pax': 19, 'min_group': 15, 'free_per': 10, 'fare': 304.43, 'disc_pct': 5}, [18, 1, 5205.78]], ['sampled case 3', {'pax': 23, 'min_group': 15, 'free_per': 10, 'fare': 154.19, 'disc_pct': 7}, [21, 2, 3011.4]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 17}, [10, 0, 2074.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 204.95, 'disc_pct': 10}, [15, 0, 2766.9]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 39, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [37, 2, 11470.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 105.0, 'disc_pct': 10}, [12, 0, 1260.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 30, 'min_group': 15, 'free_per': 15, 'fare': 348.05, 'disc_pct': 12}, [29, 1, 8882.12]], ['sampled case 2', {'pax': 31, 'min_group': 15, 'free_per': 9, 'fare': 312.49, 'disc_pct': 12}, [28, 3, 7699.72]], ['sampled case 3', {'pax': 59, 'min_group': 20, 'free_per': 9, 'fare': 68.44, 'disc_pct': 10}, [54, 5, 3326.4]]]]\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":"8b5a33e301a9cc3dc4060b3f9df20c335457d34305c59862a019f9776b7832c1","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    n = x['pax']\n    if n < x['min_group']:\n        per = round(x['fare'], 2)\n        return [n, 0, round(per * n, 2)]\n    free = n // (x['free_per'] + 1)\n    paying = n - free\n    per = round(x['fare'] * (100 - x['disc_pct']) / 100, 2)\n    return [paying, free, round(per * paying, 2)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 13}, [10, 0, 2174.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 200.95, 'disc_pct': 10}, [15, 0, 2712.75]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 35, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [33, 2, 10230.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 101.0, 'disc_pct': 10}, [12, 0, 1212.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 13, 'min_group': 20, 'free_per': 5, 'fare': 244.64, 'disc_pct': 12}, [13, 0, 3180.32]], ['sampled case 2', {'pax': 24, 'min_group': 20, 'free_per': 5, 'fare': 241.52, 'disc_pct': 20}, [20, 4, 3864.4]], ['sampled case 3', {'pax': 59, 'min_group': 20, 'free_per': 10, 'fare': 154.51, 'disc_pct': 15}, [54, 5, 7091.82]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 14}, [10, 0, 2149.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 201.95, 'disc_pct': 10}, [15, 0, 2726.25]], ['small party', {'pax': 8, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [8, 0, 960.0]], ['large group two free', {'pax': 36, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [34, 2, 10540.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 102.0, 'disc_pct': 10}, [12, 0, 1224.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 24, 'min_group': 15, 'free_per': 5, 'fare': 165.48, 'disc_pct': 15}, [20, 4, 2813.2]], ['sampled case 2', {'pax': 50, 'min_group': 20, 'free_per': 15, 'fare': 118.08, 'disc_pct': 10}, [47, 3, 4994.69]], ['sampled case 3', {'pax': 24, 'min_group': 20, 'free_per': 9, 'fare': 198.91, 'disc_pct': 7}, [22, 2, 4069.78]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 15}, [10, 0, 2124.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 202.95, 'disc_pct': 10}, [15, 0, 2739.9]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 37, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [35, 2, 10850.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 103.0, 'disc_pct': 10}, [12, 0, 1236.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 28, 'min_group': 20, 'free_per': 9, 'fare': 148.43, 'disc_pct': 15}, [26, 2, 3280.42]], ['sampled case 2', {'pax': 19, 'min_group': 10, 'free_per': 10, 'fare': 244.1, 'disc_pct': 12}, [18, 1, 3866.58]], ['sampled case 3', {'pax': 37, 'min_group': 20, 'free_per': 15, 'fare': 79.12, 'disc_pct': 5}, [35, 2, 2630.6]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 16}, [10, 0, 2099.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 203.95, 'disc_pct': 10}, [15, 0, 2753.4]], ['small party', {'pax': 8, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [8, 0, 960.0]], ['large group two free', {'pax': 38, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [36, 2, 11160.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 104.0, 'disc_pct': 10}, [12, 0, 1248.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 17, 'min_group': 20, 'free_per': 10, 'fare': 198.81, 'disc_pct': 7}, [17, 0, 3379.77]], ['sampled case 2', {'pax': 19, 'min_group': 15, 'free_per': 10, 'fare': 304.43, 'disc_pct': 5}, [18, 1, 5205.78]], ['sampled case 3', {'pax': 23, 'min_group': 15, 'free_per': 10, 'fare': 154.19, 'disc_pct': 7}, [21, 2, 3011.4]]], [['exactly minimum group', {'pax': 10, 'min_group': 10, 'free_per': 15, 'fare': 249.99, 'disc_pct': 17}, [10, 0, 2074.9]], ['sixteen travellers one free', {'pax': 16, 'min_group': 10, 'free_per': 15, 'fare': 199.95, 'disc_pct': 10}, [15, 1, 2699.4]], ['fifteen travellers none free', {'pax': 15, 'min_group': 10, 'free_per': 15, 'fare': 204.95, 'disc_pct': 10}, [15, 0, 2766.9]], ['small party', {'pax': 9, 'min_group': 10, 'free_per': 15, 'fare': 120.0, 'disc_pct': 15}, [9, 0, 1080.0]], ['large group two free', {'pax': 39, 'min_group': 10, 'free_per': 15, 'fare': 333.33, 'disc_pct': 7}, [37, 2, 11470.0]], ['generous free rule small party', {'pax': 12, 'min_group': 20, 'free_per': 5, 'fare': 105.0, 'disc_pct': 10}, [12, 0, 1260.0]], ['rounding per passenger', {'pax': 21, 'min_group': 20, 'free_per': 9, 'fare': 99.99, 'disc_pct': 15}, [19, 2, 1614.81]], ['sampled case 1', {'pax': 30, 'min_group': 15, 'free_per': 15, 'fare': 348.05, 'disc_pct': 12}, [29, 1, 8882.12]], ['sampled case 2', {'pax': 31, 'min_group': 15, 'free_per': 9, 'fare': 312.49, 'disc_pct': 12}, [28, 3, 7699.72]], ['sampled case 3', {'pax': 59, 'min_group': 20, 'free_per': 9, 'fare': 68.44, 'disc_pct': 10}, [54, 5, 3326.4]]]]\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-group-fare-conductor-free-below-minimum","generated_at":"2026-09-29T14:47:45.439996+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Group fares apply a discount once a minimum size is reached and grant tour-conductor tickets that must not themselves count as paying passengers.","repair":"No free tickets below the group minimum.","root_cause":"The small-party branch computes the free-ticket entitlement too.","sha256":"096da06585d1c5186095bf3782180bae9121fa4a1ee01a3eefa689bbc567c20a","title":"Parties below the group minimum receive conductor tickets · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":39.571,"exit_code":1,"observations":[{"actual":[10,0,2174.9],"check":"exactly minimum group","expected":[10,0,2174.9],"passed":true},{"actual":[15,1,2699.4],"check":"sixteen travellers one free","expected":[15,1,2699.4],"passed":true},{"actual":[15,0,2712.75],"check":"fifteen travellers none free","expected":[15,0,2712.75],"passed":true},{"actual":[9,0,1080.0],"check":"small party","expected":[9,0,1080.0],"passed":true},{"actual":[33,2,10230.0],"check":"large group two free","expected":[33,2,10230.0],"passed":true},{"actual":[12,2,1212.0],"check":"generous free rule small party","expected":[12,0,1212.0],"passed":false},{"actual":[19,2,1614.81],"check":"rounding per passenger","expected":[19,2,1614.81],"passed":true},{"actual":[13,2,3180.32],"check":"sampled case 1","expected":[13,0,3180.32],"passed":false},{"actual":[20,4,3864.4],"check":"sampled case 2","expected":[20,4,3864.4],"passed":true},{"actual":[54,5,7091.82],"check":"sampled case 3","expected":[54,5,7091.82],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"exactly minimum group\", \"actual\": [10, 0, 2174.9], \"expected\": [10, 0, 2174.9], \"passed\": true}, {\"check\": \"sixteen travellers one free\", \"actual\": [15, 1, 2699.4], \"expected\": [15, 1, 2699.4], \"passed\": true}, {\"check\": \"fifteen travellers none free\", \"actual\": [15, 0, 2712.75], \"expected\": [15, 0, 2712.75], \"passed\": true}, {\"check\": \"small party\", \"actual\": [9, 0, 1080.0], \"expected\": [9, 0, 1080.0], \"passed\": true}, {\"check\": \"large group two free\", \"actual\": [33, 2, 10230.0], \"expected\": [33, 2, 10230.0], \"passed\": true}, {\"check\": \"generous free rule small party\", \"actual\": [12, 2, 1212.0], \"expected\": [12, 0, 1212.0], \"passed\": false}, {\"check\": \"rounding per passenger\", \"actual\": [19, 2, 1614.81], \"expected\": [19, 2, 1614.81], \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": [13, 2, 3180.32], \"expected\": [13, 0, 3180.32], \"passed\": false}, {\"check\": \"sampled case 2\", \"actual\": [20, 4, 3864.4], \"expected\": [20, 4, 3864.4], \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": [54, 5, 7091.82], \"expected\": [54, 5, 7091.82], \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":39.241,"exit_code":1,"observations":[{"actual":[10,0,2174.9],"check":"exactly minimum group","expected":[10,0,2174.9],"passed":true},{"actual":[15,1,2699.4],"check":"sixteen travellers one free","expected":[15,1,2699.4],"passed":true},{"actual":[15,0,2712.75],"check":"fifteen travellers none free","expected":[15,0,2712.75],"passed":true},{"actual":[9,0,1080.0],"check":"small party","expected":[9,0,1080.0],"passed":true},{"actual":[33,2,10230.0],"check":"large group two free","expected":[33,2,10230.0],"passed":true},{"actual":[10,2,1010.0],"check":"generous free rule small party","expected":[12,0,1212.0],"passed":false},{"actual":[19,2,1614.81],"check":"rounding per passenger","expected":[19,2,1614.81],"passed":true},{"actual":[11,2,2691.04],"check":"sampled case 1","expected":[13,0,3180.32],"passed":false},{"actual":[20,4,3864.4],"check":"sampled case 2","expected":[20,4,3864.4],"passed":true},{"actual":[54,5,7091.82],"check":"sampled case 3","expected":[54,5,7091.82],"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"exactly minimum group\", \"actual\": [10, 0, 2174.9], \"expected\": [10, 0, 2174.9], \"passed\": true}, {\"check\": \"sixteen travellers one free\", \"actual\": [15, 1, 2699.4], \"expected\": [15, 1, 2699.4], \"passed\": true}, {\"check\": \"fifteen travellers none free\", \"actual\": [15, 0, 2712.75], \"expected\": [15, 0, 2712.75], \"passed\": true}, {\"check\": \"small party\", \"actual\": [9, 0, 1080.0], \"expected\": [9, 0, 1080.0], \"passed\": true}, {\"check\": \"large group two free\", \"actual\": [33, 2, 10230.0], \"expected\": [33, 2, 10230.0], \"passed\": true}, {\"check\": \"generous free rule small party\", \"actual\": [10, 2, 1010.0], \"expected\": [12, 0, 1212.0], \"passed\": false}, {\"check\": \"rounding per passenger\", \"actual\": [19, 2, 1614.81], \"expected\": [19, 2, 1614.81], \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": [11, 2, 2691.04], \"expected\": [13, 0, 3180.32], \"passed\": false}, {\"check\": \"sampled case 2\", \"actual\": [20, 4, 3864.4], \"expected\": [20, 4, 3864.4], \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": [54, 5, 7091.82], \"expected\": [54, 5, 7091.82], \"passed\": true}], \"passed\": false}\n"},"fixed":{"elapsed_ms":41.878,"exit_code":0,"observations":[{"actual":[10,0,2174.9],"check":"exactly minimum group","expected":[10,0,2174.9],"passed":true},{"actual":[15,1,2699.4],"check":"sixteen travellers one free","expected":[15,1,2699.4],"passed":true},{"actual":[15,0,2712.75],"check":"fifteen travellers none free","expected":[15,0,2712.75],"passed":true},{"actual":[9,0,1080.0],"check":"small party","expected":[9,0,1080.0],"passed":true},{"actual":[33,2,10230.0],"check":"large group two free","expected":[33,2,10230.0],"passed":true},{"actual":[12,0,1212.0],"check":"generous free rule small party","expected":[12,0,1212.0],"passed":true},{"actual":[19,2,1614.81],"check":"rounding per passenger","expected":[19,2,1614.81],"passed":true},{"actual":[13,0,3180.32],"check":"sampled case 1","expected":[13,0,3180.32],"passed":true},{"actual":[20,4,3864.4],"check":"sampled case 2","expected":[20,4,3864.4],"passed":true},{"actual":[54,5,7091.82],"check":"sampled case 3","expected":[54,5,7091.82],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"exactly minimum group\", \"actual\": [10, 0, 2174.9], \"expected\": [10, 0, 2174.9], \"passed\": true}, {\"check\": \"sixteen travellers one free\", \"actual\": [15, 1, 2699.4], \"expected\": [15, 1, 2699.4], \"passed\": true}, {\"check\": \"fifteen travellers none free\", \"actual\": [15, 0, 2712.75], \"expected\": [15, 0, 2712.75], \"passed\": true}, {\"check\": \"small party\", \"actual\": [9, 0, 1080.0], \"expected\": [9, 0, 1080.0], \"passed\": true}, {\"check\": \"large group two free\", \"actual\": [33, 2, 10230.0], \"expected\": [33, 2, 10230.0], \"passed\": true}, {\"check\": \"generous free rule small party\", \"actual\": [12, 0, 1212.0], \"expected\": [12, 0, 1212.0], \"passed\": true}, {\"check\": \"rounding per passenger\", \"actual\": [19, 2, 1614.81], \"expected\": [19, 2, 1614.81], \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": [13, 0, 3180.32], \"expected\": [13, 0, 3180.32], \"passed\": true}, {\"check\": \"sampled case 2\", \"actual\": [20, 4, 3864.4], \"expected\": [20, 4, 3864.4], \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": [54, 5, 7091.82], \"expected\": [54, 5, 7091.82], \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}