Build (method = -2) #dp: 5612 Step-3' Graph: 739 vertices and 2210 arcs (0.13s) Step-4' Graph: 173 vertices and 1078 arcs (0.13s) #V4/#V3 = 0.23 #A4/#A3 = 0.49 Ready! (0.13s) Optimize a model with 423 rows, 1079 columns and 2895 nonzeros Presolve removed 280 rows and 285 columns Presolve time: 0.02s Presolved: 143 rows, 794 columns, 2264 nonzeros Variable types: 0 continuous, 794 integer (628 binary) Found heuristic solution: objective 231.0000000 Optimize a model with 143 rows, 794 columns and 2264 nonzeros Presolved: 143 rows, 794 columns, 2264 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.106e+03 Factor NZ : 3.234e+03 Factor Ops : 8.582e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 -6.65975744e-01 -7.56019551e+02 4.32e+03 2.43e-01 9.13e+00 0s 1 2.28091305e+02 -2.73620461e+02 7.36e+02 5.55e-16 1.71e+00 0s 2 2.46527800e+02 6.92236899e+01 1.17e+02 5.55e-16 2.94e-01 0s 3 2.34208041e+02 1.87250196e+02 1.45e+01 3.11e-15 4.87e-02 0s 4 2.30312314e+02 2.17829705e+02 2.62e+00 1.18e-15 1.05e-02 0s 5 2.28429363e+02 2.23096085e+02 7.32e-01 1.01e-15 3.94e-03 0s 6 2.27338294e+02 2.24919814e+02 2.75e-01 1.33e-15 1.73e-03 0s 7 2.27066167e+02 2.26581074e+02 7.12e-02 2.00e-15 3.62e-04 0s 8 2.27003614e+02 2.26992360e+02 1.13e-04 1.11e-15 7.18e-06 0s 9 2.27000000e+02 2.27000000e+02 2.42e-09 1.33e-15 1.16e-10 0s 10 2.27000000e+02 2.27000000e+02 1.20e-12 1.09e-15 1.16e-13 0s Barrier solved model in 10 iterations and 0.01 seconds Optimal objective 2.27000000e+02 Root relaxation: objective 2.270000e+02, 356 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 227.0000000 227.00000 0.0% - 0s Explored 0 nodes (458 simplex iterations) in 0.04 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.270000000000e+02, best bound 2.270000000000e+02, gap 0.0% Preprocessing time: 0.14 seconds Gurobi run time: 0.04 seconds Total run time: 0.18 seconds Objective: 227 Solution: 1 x [13] 1 x [29] 1 x [39] 1 x [112] 1 x [248] 1 x [87] 1 x [124] 1 x [135] 1 x [231] 1 x [10] 1 x [36] 1 x [51] 1 x [105] 1 x [128] 1 x [30] 1 x [77] 1 x [82] 1 x [4] 1 x [32] 1 x [74] 1 x [106] 1 x [133] 1 x [44] 1 x [91] 1 x [88] 1 x [210] 1 x [222] 1 x [19] 1 x [196] 1 x [212] 1 x [64] 1 x [109] 1 x [113] 1 x [138] 1 x [49] 1 x [167] 1 x [24] 1 x [127] 1 x [174] 1 x [221] 1 x [154] 1 x [176] 1 x [226] 1 x [14] 1 x [136] 1 x [141] 1 x [217] 1 x [246] 1 x [80] 1 x [129] 1 x [160] 1 x [175] 1 x [234] 1 x [15] 1 x [101] 1 x [157] 1 x [158] 1 x [194] 1 x [237, 243] 1 x [84] 1 x [229] 1 x [242] 1 x [1] 1 x [99, 227] 1 x [149] 1 x [95] 1 x [204] 1 x [219] 1 x [100] 1 x [199] 1 x [42] 1 x [75] 1 x [90] 1 x [224] 1 x [250] 1 x [108] 1 x [201] 1 x [70] 1 x [230] 1 x [72] 1 x [143] 1 x [96] 1 x [107, 114, 140] 1 x [69] 1 x [81] 1 x [43, 191] 1 x [71, 173, 232] 1 x [153] 1 x [178] 1 x [192] 1 x [6] 1 x [76] 1 x [171] 1 x [189] 1 x [236] 1 x [170] 1 x [27, 249] 1 x [2, 156] 1 x [17] 1 x [238] 1 x [102] 1 x [110] 1 x [54] 1 x [187] 1 x [205] 1 x [63, 244] 1 x [53] 1 x [47, 163] 1 x [35] 1 x [60] 1 x [34] 1 x [38] 1 x [86] 1 x [152] 1 x [211] 1 x [225] 1 x [168] 1 x [146] 1 x [200] 1 x [20] 1 x [104] 1 x [179] 1 x [190] 1 x [50] 1 x [56] 1 x [223] 1 x [8, 145, 181] 1 x [23] 1 x [98] 1 x [55] 1 x [123] 1 x [134] 1 x [164] 1 x [159] 1 x [132] 1 x [148, 161] 1 x [62] 1 x [66] 1 x [83] 1 x [93] 1 x [115] 1 x [239] 1 x [31] 1 x [116] 1 x [203] 1 x [241] 1 x [67] 1 x [137] 1 x [122, 177] 1 x [117] 1 x [5] 1 x [12] 1 x [126] 1 x [198] 1 x [7] 1 x [41] 1 x [65] 1 x [183] 1 x [85, 195, 235] 1 x [21] 1 x [40] 1 x [118] 1 x [208] 1 x [37] 1 x [18, 45, 188] 1 x [11] 1 x [147] 1 x [247] 1 x [120] 1 x [193] 1 x [16] 1 x [130] 1 x [142] 1 x [233] 1 x [79, 121, 165] 1 x [33] 1 x [186] 1 x [119] 1 x [151] 1 x [48] 1 x [166] 1 x [26] 1 x [58] 1 x [172] 1 x [185] 1 x [28, 202, 228] 1 x [125] 1 x [216] 1 x [220] 1 x [59] 1 x [94] 1 x [150] 1 x [9] 1 x [61] 1 x [131] 1 x [215] 1 x [92] 1 x [103] 1 x [155] 1 x [111] 1 x [169] 1 x [73] 1 x [139] 1 x [207] 1 x [3] 1 x [52] 1 x [182] 1 x [184] 1 x [218] 1 x [25] 1 x [144] 1 x [180] 1 x [209] 1 x [57] 1 x [78] 1 x [162] 1 x [197] 1 x [206] 1 x [240] 1 x [46] 1 x [89] 1 x [97] 1 x [22] 1 x [68] 1 x [213] 1 x [214] 1 x [245]