{"abstract":"Totals are high by exactly K and the aircraft looks aft-loaded even when empty.","category":"Aviation weight and balance","checks":9,"contract":"Input {'dow','doi','ref','c','k','lemac','mac','items':[[kg,arm m]]}. Item index = kg*(arm-ref)/c; the dry operating index already contains K. Total index = doi + item indices; CG arm = ref + (index-K)*c/total weight; %MAC = (CG-LEMAC)/MAC*100. Return [index r2, %MAC r1].","evaluation_group":"w2-aviation-weight-balance-loadsheet-index","failed_approach":"Subtracting the reference arm mixes a length into an index and still offsets every result.","family":"w2-aviation-weight-balance-loadsheet-index-doi-double-k","id":"FA-65906","implementations":{"attempt":{"sha256":"b30d8779b67467fe057ecafc5e0663dc27ca1ac6036109396c8f67a8a6c79108","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    ref, c, k = x['ref'], x['c'], x['k']\n    w = x['dow']\n    ti = x['doi'] - ref\n    for iw, arm in x['items']:\n        w += iw\n        ti += iw * (arm - ref) / c\n    cg = ref + (ti - k) * c / w\n    pmac = (cg - x['lemac']) / x['mac'] * 100\n    return [round(ti, 2), round(pmac, 1)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3100.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [50.3, 37.6]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.1]]}, [80.4, 54.0]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.2]]}, [17.2, 19.5]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[2500.0, 18.0]]}, [48.0, 36.4]], ['different constants', {'dow': 36050.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 33485.0, 'doi': 37.0, 'ref': 20.4, 'c': 500.0, 'k': 44.4, 'lemac': 18.68, 'mac': 3.58, 'items': [[4603.0, 5.73], [2919.0, 25.41], [5509.0, 29.73], [5663.0, 28.02]]}, [120.3, 68.4]], ['sampled case 2', {'dow': 45884.0, 'doi': 51.2, 'ref': 20.0, 'c': 200.0, 'k': 57.4, 'lemac': 14.39, 'mac': 4.79, 'items': [[4694.0, 15.31], [4327.0, 9.7], [185.0, 15.41], [4752.0, 22.51], [992.0, 14.27]]}, [-254.74, 95.7]], ['sampled case 3', {'dow': 36007.0, 'doi': 45.2, 'ref': 20.5, 'c': 2000.0, 'k': 46.9, 'lemac': 17.4, 'mac': 3.61, 'items': []}, [45.2, 83.3]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3200.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.9, 37.5]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.2]]}, [80.8, 54.2]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.4]]}, [17.9, 19.9]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[5000.0, 18.0]]}, [48.0, 36.4]], ['different constants', {'dow': 36100.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 41485.0, 'doi': 53.7, 'ref': 17.2, 'c': 500.0, 'k': 53.6, 'lemac': 14.91, 'mac': 4.7, 'items': [[323.0, 8.3], [3020.0, 17.98], [2440.0, 14.22]]}, [38.12, 45.2]], ['sampled case 2', {'dow': 36221.0, 'doi': 55.1, 'ref': 19.8, 'c': 2000.0, 'k': 56.4, 'lemac': 18.06, 'mac': 3.42, 'items': [[1053.0, 22.91]]}, [56.74, 51.4]], ['sampled case 3', {'dow': 36359.0, 'doi': 27.6, 'ref': 16.4, 'c': 200.0, 'k': 30.8, 'lemac': 14.16, 'mac': 3.79, 'items': [[2072.0, 5.02]]}, [-90.3, 42.5]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3300.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.5, 37.3]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.3]]}, [81.2, 54.5]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.6]]}, [18.6, 20.2]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[7500.0, 18.0]]}, [48.0, 36.5]], ['different constants', {'dow': 36150.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 33923.0, 'doi': 39.1, 'ref': 19.3, 'c': 200.0, 'k': 45.3, 'lemac': 16.18, 'mac': 4.5, 'items': [[3739.0, 10.15]]}, [-131.96, 48.4]], ['sampled case 2', {'dow': 40403.0, 'doi': 39.1, 'ref': 21.4, 'c': 1000.0, 'k': 44.8, 'lemac': 14.64, 'mac': 4.94, 'items': [[4674.0, 28.04]]}, [70.14, 148.2]], ['sampled case 3', {'dow': 30111.0, 'doi': 38.1, 'ref': 15.0, 'c': 200.0, 'k': 36.0, 'lemac': 15.26, 'mac': 4.8, 'items': [[5589.0, 17.22]]}, [100.14, 2.1]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3400.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.1, 37.1]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.4]]}, [81.6, 54.7]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.8]]}, [19.3, 20.6]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[10000.0, 18.0]]}, [48.0, 36.5]], ['different constants', {'dow': 36200.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 40381.0, 'doi': 38.2, 'ref': 17.2, 'c': 200.0, 'k': 35.3, 'lemac': 17.91, 'mac': 3.25, 'items': [[1141.0, 14.25], [3763.0, 12.45]]}, [-68.0, -35.9]], ['sampled case 2', {'dow': 40833.0, 'doi': 53.7, 'ref': 21.5, 'c': 2000.0, 'k': 48.5, 'lemac': 17.83, 'mac': 3.22, 'items': [[4174.0, 19.61], [2120.0, 18.46], [4779.0, 27.55], [1973.0, 12.04]]}, [51.66, 117.6]], ['sampled case 3', {'dow': 33856.0, 'doi': 31.0, 'ref': 19.9, 'c': 200.0, 'k': 36.6, 'lemac': 18.08, 'mac': 4.82, 'items': []}, [31.0, 37.1]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [48.7, 36.9]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.5]]}, [82.0, 54.9]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 10.0]]}, [20.0, 21.0]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[12500.0, 18.0]]}, [48.0, 36.6]], ['different constants', {'dow': 36250.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 34075.0, 'doi': 33.7, 'ref': 19.6, 'c': 2000.0, 'k': 36.1, 'lemac': 15.76, 'mac': 3.12, 'items': [[4801.0, 23.6], [3956.0, 16.47], [1810.0, 18.75], [1491.0, 15.01], [3514.0, 6.44]]}, [9.8, 89.1]], ['sampled case 2', {'dow': 33834.0, 'doi': 57.4, 'ref': 20.6, 'c': 500.0, 'k': 55.3, 'lemac': 15.75, 'mac': 3.95, 'items': [[3292.0, 11.8], [4846.0, 14.0], [3222.0, 25.52], [2090.0, 7.1], [168.0, 27.97]]}, [-86.76, 84.9]], ['sampled case 3', {'dow': 46921.0, 'doi': 51.0, 'ref': 17.8, 'c': 500.0, 'k': 52.3, 'lemac': 14.61, 'mac': 3.01, 'items': [[2487.0, 11.85], [4542.0, 19.68]]}, [38.48, 101.7]]]]\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":"89adf55f84335336d5a91f64f4c2fa94fda7a7516269e3f32e831883ee5cff71","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    ref, c, k = x['ref'], x['c'], x['k']\n    w = x['dow']\n    ti = x['doi'] + k\n    for iw, arm in x['items']:\n        w += iw\n        ti += iw * (arm - ref) / c\n    cg = ref + (ti - k) * c / w\n    pmac = (cg - x['lemac']) / x['mac'] * 100\n    return [round(ti, 2), round(pmac, 1)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3100.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [50.3, 37.6]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.1]]}, [80.4, 54.0]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.2]]}, [17.2, 19.5]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[2500.0, 18.0]]}, [48.0, 36.4]], ['different constants', {'dow': 36050.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 33485.0, 'doi': 37.0, 'ref': 20.4, 'c': 500.0, 'k': 44.4, 'lemac': 18.68, 'mac': 3.58, 'items': [[4603.0, 5.73], [2919.0, 25.41], [5509.0, 29.73], [5663.0, 28.02]]}, [120.3, 68.4]], ['sampled case 2', {'dow': 45884.0, 'doi': 51.2, 'ref': 20.0, 'c': 200.0, 'k': 57.4, 'lemac': 14.39, 'mac': 4.79, 'items': [[4694.0, 15.31], [4327.0, 9.7], [185.0, 15.41], [4752.0, 22.51], [992.0, 14.27]]}, [-254.74, 95.7]], ['sampled case 3', {'dow': 36007.0, 'doi': 45.2, 'ref': 20.5, 'c': 2000.0, 'k': 46.9, 'lemac': 17.4, 'mac': 3.61, 'items': []}, [45.2, 83.3]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3200.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.9, 37.5]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.2]]}, [80.8, 54.2]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.4]]}, [17.9, 19.9]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[5000.0, 18.0]]}, [48.0, 36.4]], ['different constants', {'dow': 36100.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 41485.0, 'doi': 53.7, 'ref': 17.2, 'c': 500.0, 'k': 53.6, 'lemac': 14.91, 'mac': 4.7, 'items': [[323.0, 8.3], [3020.0, 17.98], [2440.0, 14.22]]}, [38.12, 45.2]], ['sampled case 2', {'dow': 36221.0, 'doi': 55.1, 'ref': 19.8, 'c': 2000.0, 'k': 56.4, 'lemac': 18.06, 'mac': 3.42, 'items': [[1053.0, 22.91]]}, [56.74, 51.4]], ['sampled case 3', {'dow': 36359.0, 'doi': 27.6, 'ref': 16.4, 'c': 200.0, 'k': 30.8, 'lemac': 14.16, 'mac': 3.79, 'items': [[2072.0, 5.02]]}, [-90.3, 42.5]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3300.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.5, 37.3]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.3]]}, [81.2, 54.5]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.6]]}, [18.6, 20.2]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[7500.0, 18.0]]}, [48.0, 36.5]], ['different constants', {'dow': 36150.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 33923.0, 'doi': 39.1, 'ref': 19.3, 'c': 200.0, 'k': 45.3, 'lemac': 16.18, 'mac': 4.5, 'items': [[3739.0, 10.15]]}, [-131.96, 48.4]], ['sampled case 2', {'dow': 40403.0, 'doi': 39.1, 'ref': 21.4, 'c': 1000.0, 'k': 44.8, 'lemac': 14.64, 'mac': 4.94, 'items': [[4674.0, 28.04]]}, [70.14, 148.2]], ['sampled case 3', {'dow': 30111.0, 'doi': 38.1, 'ref': 15.0, 'c': 200.0, 'k': 36.0, 'lemac': 15.26, 'mac': 4.8, 'items': [[5589.0, 17.22]]}, [100.14, 2.1]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3400.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.1, 37.1]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.4]]}, [81.6, 54.7]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.8]]}, [19.3, 20.6]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[10000.0, 18.0]]}, [48.0, 36.5]], ['different constants', {'dow': 36200.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 40381.0, 'doi': 38.2, 'ref': 17.2, 'c': 200.0, 'k': 35.3, 'lemac': 17.91, 'mac': 3.25, 'items': [[1141.0, 14.25], [3763.0, 12.45]]}, [-68.0, -35.9]], ['sampled case 2', {'dow': 40833.0, 'doi': 53.7, 'ref': 21.5, 'c': 2000.0, 'k': 48.5, 'lemac': 17.83, 'mac': 3.22, 'items': [[4174.0, 19.61], [2120.0, 18.46], [4779.0, 27.55], [1973.0, 12.04]]}, [51.66, 117.6]], ['sampled case 3', {'dow': 33856.0, 'doi': 31.0, 'ref': 19.9, 'c': 200.0, 'k': 36.6, 'lemac': 18.08, 'mac': 4.82, 'items': []}, [31.0, 37.1]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [48.7, 36.9]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.5]]}, [82.0, 54.9]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 10.0]]}, [20.0, 21.0]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[12500.0, 18.0]]}, [48.0, 36.6]], ['different constants', {'dow': 36250.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 34075.0, 'doi': 33.7, 'ref': 19.6, 'c': 2000.0, 'k': 36.1, 'lemac': 15.76, 'mac': 3.12, 'items': [[4801.0, 23.6], [3956.0, 16.47], [1810.0, 18.75], [1491.0, 15.01], [3514.0, 6.44]]}, [9.8, 89.1]], ['sampled case 2', {'dow': 33834.0, 'doi': 57.4, 'ref': 20.6, 'c': 500.0, 'k': 55.3, 'lemac': 15.75, 'mac': 3.95, 'items': [[3292.0, 11.8], [4846.0, 14.0], [3222.0, 25.52], [2090.0, 7.1], [168.0, 27.97]]}, [-86.76, 84.9]], ['sampled case 3', {'dow': 46921.0, 'doi': 51.0, 'ref': 17.8, 'c': 500.0, 'k': 52.3, 'lemac': 14.61, 'mac': 3.01, 'items': [[2487.0, 11.85], [4542.0, 19.68]]}, [38.48, 101.7]]]]\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":"29e9cc4a8fe4ede3b8326c94a7b85ee7eaa307ffd8a5b9bb462fd3ae70532e71","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    ref, c, k = x['ref'], x['c'], x['k']\n    w = x['dow']\n    ti = x['doi']\n    for iw, arm in x['items']:\n        w += iw\n        ti += iw * (arm - ref) / c\n    cg = ref + (ti - k) * c / w\n    pmac = (cg - x['lemac']) / x['mac'] * 100\n    return [round(ti, 2), round(pmac, 1)]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3100.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [50.3, 37.6]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.1]]}, [80.4, 54.0]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.2]]}, [17.2, 19.5]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[2500.0, 18.0]]}, [48.0, 36.4]], ['different constants', {'dow': 36050.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 33485.0, 'doi': 37.0, 'ref': 20.4, 'c': 500.0, 'k': 44.4, 'lemac': 18.68, 'mac': 3.58, 'items': [[4603.0, 5.73], [2919.0, 25.41], [5509.0, 29.73], [5663.0, 28.02]]}, [120.3, 68.4]], ['sampled case 2', {'dow': 45884.0, 'doi': 51.2, 'ref': 20.0, 'c': 200.0, 'k': 57.4, 'lemac': 14.39, 'mac': 4.79, 'items': [[4694.0, 15.31], [4327.0, 9.7], [185.0, 15.41], [4752.0, 22.51], [992.0, 14.27]]}, [-254.74, 95.7]], ['sampled case 3', {'dow': 36007.0, 'doi': 45.2, 'ref': 20.5, 'c': 2000.0, 'k': 46.9, 'lemac': 17.4, 'mac': 3.61, 'items': []}, [45.2, 83.3]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3200.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.9, 37.5]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.2]]}, [80.8, 54.2]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.4]]}, [17.9, 19.9]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[5000.0, 18.0]]}, [48.0, 36.4]], ['different constants', {'dow': 36100.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 41485.0, 'doi': 53.7, 'ref': 17.2, 'c': 500.0, 'k': 53.6, 'lemac': 14.91, 'mac': 4.7, 'items': [[323.0, 8.3], [3020.0, 17.98], [2440.0, 14.22]]}, [38.12, 45.2]], ['sampled case 2', {'dow': 36221.0, 'doi': 55.1, 'ref': 19.8, 'c': 2000.0, 'k': 56.4, 'lemac': 18.06, 'mac': 3.42, 'items': [[1053.0, 22.91]]}, [56.74, 51.4]], ['sampled case 3', {'dow': 36359.0, 'doi': 27.6, 'ref': 16.4, 'c': 200.0, 'k': 30.8, 'lemac': 14.16, 'mac': 3.79, 'items': [[2072.0, 5.02]]}, [-90.3, 42.5]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3300.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.5, 37.3]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.3]]}, [81.2, 54.5]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.6]]}, [18.6, 20.2]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[7500.0, 18.0]]}, [48.0, 36.5]], ['different constants', {'dow': 36150.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 33923.0, 'doi': 39.1, 'ref': 19.3, 'c': 200.0, 'k': 45.3, 'lemac': 16.18, 'mac': 4.5, 'items': [[3739.0, 10.15]]}, [-131.96, 48.4]], ['sampled case 2', {'dow': 40403.0, 'doi': 39.1, 'ref': 21.4, 'c': 1000.0, 'k': 44.8, 'lemac': 14.64, 'mac': 4.94, 'items': [[4674.0, 28.04]]}, [70.14, 148.2]], ['sampled case 3', {'dow': 30111.0, 'doi': 38.1, 'ref': 15.0, 'c': 200.0, 'k': 36.0, 'lemac': 15.26, 'mac': 4.8, 'items': [[5589.0, 17.22]]}, [100.14, 2.1]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3400.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [49.1, 37.1]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.4]]}, [81.6, 54.7]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 9.8]]}, [19.3, 20.6]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[10000.0, 18.0]]}, [48.0, 36.5]], ['different constants', {'dow': 36200.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 40381.0, 'doi': 38.2, 'ref': 17.2, 'c': 200.0, 'k': 35.3, 'lemac': 17.91, 'mac': 3.25, 'items': [[1141.0, 14.25], [3763.0, 12.45]]}, [-68.0, -35.9]], ['sampled case 2', {'dow': 40833.0, 'doi': 53.7, 'ref': 21.5, 'c': 2000.0, 'k': 48.5, 'lemac': 17.83, 'mac': 3.22, 'items': [[4174.0, 19.61], [2120.0, 18.46], [4779.0, 27.55], [1973.0, 12.04]]}, [51.66, 117.6]], ['sampled case 3', {'dow': 33856.0, 'doi': 31.0, 'ref': 19.9, 'c': 200.0, 'k': 36.6, 'lemac': 18.08, 'mac': 4.82, 'items': []}, [31.0, 37.1]]], [['typical cabin and hold', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 14.0], [5000.0, 19.5], [1200.0, 24.0]]}, [48.7, 36.9]], ['empty operating aircraft', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': []}, [48.0, 36.3]], ['aft hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[4000.0, 26.5]]}, [82.0, 54.9]], ['forward hold heavy', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[3500.0, 10.0]]}, [20.0, 21.0]], ['item at reference arm', {'dow': 42000.0, 'doi': 48.0, 'ref': 18.0, 'c': 1000.0, 'k': 50.0, 'lemac': 16.5, 'mac': 4.0, 'items': [[12500.0, 18.0]]}, [48.0, 36.6]], ['different constants', {'dow': 36250.0, 'doi': 40.0, 'ref': 20.0, 'c': 500.0, 'k': 45.0, 'lemac': 18.0, 'mac': 3.2, 'items': [[1800.0, 22.0], [2200.0, 17.0]]}, [34.0, 58.2]], ['sampled case 1', {'dow': 34075.0, 'doi': 33.7, 'ref': 19.6, 'c': 2000.0, 'k': 36.1, 'lemac': 15.76, 'mac': 3.12, 'items': [[4801.0, 23.6], [3956.0, 16.47], [1810.0, 18.75], [1491.0, 15.01], [3514.0, 6.44]]}, [9.8, 89.1]], ['sampled case 2', {'dow': 33834.0, 'doi': 57.4, 'ref': 20.6, 'c': 500.0, 'k': 55.3, 'lemac': 15.75, 'mac': 3.95, 'items': [[3292.0, 11.8], [4846.0, 14.0], [3222.0, 25.52], [2090.0, 7.1], [168.0, 27.97]]}, [-86.76, 84.9]], ['sampled case 3', {'dow': 46921.0, 'doi': 51.0, 'ref': 17.8, 'c': 500.0, 'k': 52.3, 'lemac': 14.61, 'mac': 3.01, 'items': [[2487.0, 11.85], [4542.0, 19.68]]}, [38.48, 101.7]]]]\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 deterministic toy loading model with stipulated constants; it is not an approved aircraft flight manual procedure and makes no claim of regulatory 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-aviation-weight-balance-loadsheet-index-doi-double-k","generated_at":"2026-09-29T14:47:38.405447+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Airline loadsheets carry balance as a dimensionless index offset by K; converting back to %MAC requires removing K and scaling by C over total weight.","repair":"Start the total index at the DOI unchanged.","root_cause":"The accumulator treats the DOI as a raw moment index and adds K again, though the DOI already includes it.","sha256":"4e9ad37bdcff25a15a55b51a6f8071143ff3d635782a632e3dec7e796bb3492c","title":"Dry operating index gets K added a second time · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":40.765,"exit_code":1,"observations":[{"actual":[32.3,28.9],"check":"typical cabin and hold","expected":[50.3,37.6],"passed":false},{"actual":[30.0,25.6],"check":"empty operating aircraft","expected":[48.0,36.3],"passed":false},{"actual":[62.4,44.2],"check":"aft hold heavy","expected":[80.4,54.0],"passed":false},{"actual":[-0.8,9.6],"check":"forward hold heavy","expected":[17.2,19.5],"passed":false},{"actual":[30.0,26.3],"check":"item at reference arm","expected":[48.0,36.4],"passed":false},{"actual":[14.0,50.4],"check":"different constants","expected":[34.0,58.2],"passed":false},{"actual":[99.9,62.9],"check":"sampled case 1","expected":[120.3,68.4],"passed":false},{"actual":[-274.74,94.3],"check":"sampled case 2","expected":[-254.74,95.7],"passed":false},{"actual":[24.7,51.7],"check":"sampled case 3","expected":[45.2,83.3],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"typical cabin and hold\", \"actual\": [32.3, 28.9], \"expected\": [50.3, 37.6], \"passed\": false}, {\"check\": \"empty operating aircraft\", \"actual\": [30.0, 25.6], \"expected\": [48.0, 36.3], \"passed\": false}, {\"check\": \"aft hold heavy\", \"actual\": [62.4, 44.2], \"expected\": [80.4, 54.0], \"passed\": false}, {\"check\": \"forward hold heavy\", \"actual\": [-0.8, 9.6], \"expected\": [17.2, 19.5], \"passed\": false}, {\"check\": \"item at reference arm\", \"actual\": [30.0, 26.3], \"expected\": [48.0, 36.4], \"passed\": false}, {\"check\": \"different constants\", \"actual\": [14.0, 50.4], \"expected\": [34.0, 58.2], \"passed\": false}, {\"check\": \"sampled case 1\", \"actual\": [99.9, 62.9], \"expected\": [120.3, 68.4], \"passed\": false}, {\"check\": \"sampled case 2\", \"actual\": [-274.74, 94.3], \"expected\": [-254.74, 95.7], \"passed\": false}, {\"check\": \"sampled case 3\", \"actual\": [24.7, 51.7], \"expected\": [45.2, 83.3], \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":38.11,"exit_code":1,"observations":[{"actual":[100.3,62.0],"check":"typical cabin and hold","expected":[50.3,37.6],"passed":false},{"actual":[98.0,66.1],"check":"empty operating aircraft","expected":[48.0,36.3],"passed":false},{"actual":[130.4,81.2],"check":"aft hold heavy","expected":[80.4,54.0],"passed":false},{"actual":[67.2,47.0],"check":"forward hold heavy","expected":[17.2,19.5],"passed":false},{"actual":[98.0,64.5],"check":"item at reference arm","expected":[48.0,36.4],"passed":false},{"actual":[79.0,75.8],"check":"different constants","expected":[34.0,58.2],"passed":false},{"actual":[164.7,80.2],"check":"sampled case 1","expected":[120.3,68.4],"passed":false},{"actual":[-197.34,99.6],"check":"sampled case 2","expected":[-254.74,95.7],"passed":false},{"actual":[92.1,155.4],"check":"sampled case 3","expected":[45.2,83.3],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"typical cabin and hold\", \"actual\": [100.3, 62.0], \"expected\": [50.3, 37.6], \"passed\": false}, {\"check\": \"empty operating aircraft\", \"actual\": [98.0, 66.1], \"expected\": [48.0, 36.3], \"passed\": false}, {\"check\": \"aft hold heavy\", \"actual\": [130.4, 81.2], \"expected\": [80.4, 54.0], \"passed\": false}, {\"check\": \"forward hold heavy\", \"actual\": [67.2, 47.0], \"expected\": [17.2, 19.5], \"passed\": false}, {\"check\": \"item at reference arm\", \"actual\": [98.0, 64.5], \"expected\": [48.0, 36.4], \"passed\": false}, {\"check\": \"different constants\", \"actual\": [79.0, 75.8], \"expected\": [34.0, 58.2], \"passed\": false}, {\"check\": \"sampled case 1\", \"actual\": [164.7, 80.2], \"expected\": [120.3, 68.4], \"passed\": false}, {\"check\": \"sampled case 2\", \"actual\": [-197.34, 99.6], \"expected\": [-254.74, 95.7], \"passed\": false}, {\"check\": \"sampled case 3\", \"actual\": [92.1, 155.4], \"expected\": [45.2, 83.3], \"passed\": false}], \"passed\": false}\n"},"fixed":{"elapsed_ms":38.175,"exit_code":0,"observations":[{"actual":[50.3,37.6],"check":"typical cabin and hold","expected":[50.3,37.6],"passed":true},{"actual":[48.0,36.3],"check":"empty operating aircraft","expected":[48.0,36.3],"passed":true},{"actual":[80.4,54.0],"check":"aft hold heavy","expected":[80.4,54.0],"passed":true},{"actual":[17.2,19.5],"check":"forward hold heavy","expected":[17.2,19.5],"passed":true},{"actual":[48.0,36.4],"check":"item at reference arm","expected":[48.0,36.4],"passed":true},{"actual":[34.0,58.2],"check":"different constants","expected":[34.0,58.2],"passed":true},{"actual":[120.3,68.4],"check":"sampled case 1","expected":[120.3,68.4],"passed":true},{"actual":[-254.74,95.7],"check":"sampled case 2","expected":[-254.74,95.7],"passed":true},{"actual":[45.2,83.3],"check":"sampled case 3","expected":[45.2,83.3],"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"typical cabin and hold\", \"actual\": [50.3, 37.6], \"expected\": [50.3, 37.6], \"passed\": true}, {\"check\": \"empty operating aircraft\", \"actual\": [48.0, 36.3], \"expected\": [48.0, 36.3], \"passed\": true}, {\"check\": \"aft hold heavy\", \"actual\": [80.4, 54.0], \"expected\": [80.4, 54.0], \"passed\": true}, {\"check\": \"forward hold heavy\", \"actual\": [17.2, 19.5], \"expected\": [17.2, 19.5], \"passed\": true}, {\"check\": \"item at reference arm\", \"actual\": [48.0, 36.4], \"expected\": [48.0, 36.4], \"passed\": true}, {\"check\": \"different constants\", \"actual\": [34.0, 58.2], \"expected\": [34.0, 58.2], \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": [120.3, 68.4], \"expected\": [120.3, 68.4], \"passed\": true}, {\"check\": \"sampled case 2\", \"actual\": [-254.74, 95.7], \"expected\": [-254.74, 95.7], \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": [45.2, 83.3], \"expected\": [45.2, 83.3], \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}