Build (method = -2) #dp: 190219 Step-3' Graph: 4183 vertices and 18421 arcs (3.98s) Step-4' Graph: 1580 vertices and 13215 arcs (4.01s) #V4/#V3 = 0.38 #A4/#A3 = 0.72 Ready! (4.01s) Optimize a model with 1830 rows, 13216 columns and 36492 nonzeros Presolve removed 208 rows and 208 columns Presolve time: 0.12s Presolved: 1622 rows, 13008 columns, 36373 nonzeros Variable types: 0 continuous, 13008 integer (10296 binary) Optimize a model with 1622 rows, 13008 columns and 36373 nonzeros Presolved: 1622 rows, 13008 columns, 36373 nonzeros Root barrier log... Ordering time: 0.02s Barrier statistics: AA' NZ : 2.216e+04 Factor NZ : 1.153e+05 (roughly 7 MBytes of memory) Factor Ops : 1.658e+07 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 1.60200699e+04 -8.18259491e+04 1.48e+05 1.88e-01 2.58e+01 0s 1 4.79882508e+03 -2.63383545e+04 3.56e+04 5.55e-16 6.36e+00 0s 2 1.05132486e+03 -7.70127269e+03 4.27e+03 6.66e-16 8.88e-01 0s 3 3.28440215e+02 -2.02269273e+03 8.27e+02 6.66e-16 1.95e-01 0s 4 1.93542708e+02 -5.89584325e+02 2.56e+02 8.88e-16 6.38e-02 0s 5 1.39208695e+02 -1.64555789e+02 7.32e+01 1.11e-15 2.03e-02 0s 6 1.18627917e+02 1.55385511e+01 9.17e+00 8.88e-16 4.71e-03 0s 7 1.15353206e+02 4.64280399e+01 5.69e+00 1.11e-15 2.99e-03 0s 8 1.10399799e+02 6.63260709e+01 2.37e+00 5.62e-16 1.80e-03 0s 9 1.04032165e+02 8.60422945e+01 6.01e-01 3.59e-16 7.10e-04 0s 10 1.01694018e+02 9.17449123e+01 2.47e-01 4.80e-16 3.88e-04 0s 11 1.00827669e+02 9.51800405e+01 1.39e-01 6.66e-16 2.20e-04 0s 12 1.00168566e+02 9.68615808e+01 7.58e-02 4.78e-16 1.28e-04 0s 13 9.97728162e+01 9.71026340e+01 4.47e-02 6.66e-16 1.03e-04 0s 14 9.95475185e+01 9.80919970e+01 2.89e-02 4.93e-16 5.64e-05 0s 15 9.93791032e+01 9.84944259e+01 1.88e-02 5.82e-16 3.43e-05 0s 16 9.92732971e+01 9.86592931e+01 1.27e-02 7.24e-16 2.38e-05 0s 17 9.91897780e+01 9.88218383e+01 7.92e-03 5.39e-16 1.43e-05 0s 18 9.91429298e+01 9.88965082e+01 5.62e-03 6.31e-16 9.55e-06 0s 19 9.91233001e+01 9.89364406e+01 4.55e-03 5.31e-16 7.25e-06 0s 20 9.90780714e+01 9.89680592e+01 2.24e-03 5.89e-16 4.26e-06 0s 21 9.90546719e+01 9.90021428e+01 1.13e-03 4.44e-16 2.03e-06 0s 22 9.90422106e+01 9.90159484e+01 6.11e-04 4.47e-16 1.02e-06 0s 23 9.90359119e+01 9.90219512e+01 3.56e-04 5.81e-16 5.42e-07 0s 24 9.90284744e+01 9.90262550e+01 5.19e-05 4.44e-16 8.60e-08 0s 25 9.90272334e+01 9.90271945e+01 7.52e-08 4.44e-16 1.50e-09 0s 26 9.90272109e+01 9.90272109e+01 1.75e-11 7.77e-16 1.50e-12 0s Barrier solved model in 26 iterations and 0.45 seconds Optimal objective 9.90272109e+01 Root relaxation: objective 9.902721e+01, 2413 iterations, 0.52 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 99.02721 0 172 - 99.02721 - - 1s H 0 0 149.0000000 99.02721 33.5% - 2s H 0 0 101.0000000 99.02721 1.95% - 2s 0 0 100.00000 0 485 101.00000 100.00000 0.99% - 4s 0 0 100.00000 0 555 101.00000 100.00000 0.99% - 6s H 0 0 100.0000000 100.00000 0.0% - 6s Cutting planes: Gomory: 2 Explored 0 nodes (8612 simplex iterations) in 6.88 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.000000000000e+02, best bound 1.000000000000e+02, gap 0.0% Preprocessing time: 4.07 seconds Gurobi run time: 6.88 seconds Total run time: 10.94 seconds Objective: 100 Solution: 1 x [210, 237] 1 x [36, 49] 1 x [1, 55] 1 x [139, 162] 1 x [47, 178] 1 x [61, 75, 132] 1 x [127, 165, 219] 1 x [169, 190, 244] 1 x [156, 245] 1 x [98, 146, 248] 1 x [80, 189] 1 x [48, 120] 1 x [124, 195, 220] 1 x [71, 116, 166] 1 x [140, 148, 200] 1 x [100, 173, 214] 1 x [138, 164, 215] 1 x [89, 143, 177] 1 x [96, 99, 135] 1 x [43, 57, 133] 1 x [15, 185] 1 x [45, 160] 1 x [115, 119] 1 x [63, 247] 1 x [9, 40] 1 x [77, 235] 1 x [69, 197] 1 x [2, 27, 31, 32] 1 x [67, 217, 227] 1 x [128, 216] 1 x [29, 167] 1 x [151, 158, 242] 1 x [136, 236] 1 x [11, 92, 192] 1 x [35, 97] 1 x [44, 122, 228] 1 x [20, 203] 1 x [38, 145] 1 x [30, 105, 187] 1 x [23, 171, 213] 1 x [5, 26, 79, 118] 1 x [64, 104, 182] 1 x [19, 130, 163] 1 x [112, 176, 221] 1 x [208, 223] 1 x [62, 72, 218] 1 x [149, 152] 1 x [60, 212, 233] 1 x [175, 188, 234] 1 x [211, 232] 1 x [21, 183] 1 x [53, 198] 1 x [66, 125, 131] 1 x [91, 93] 1 x [85, 229] 1 x [50, 137, 184] 1 x [6, 58, 88] 1 x [81, 186, 231] 1 x [22, 157] 1 x [56, 109, 224] 1 x [65, 113] 1 x [34, 170, 243] 1 x [39, 250] 1 x [4, 41] 1 x [37, 114] 1 x [12, 106, 134] 1 x [59, 199, 238] 1 x [51, 172] 1 x [95, 144] 1 x [108, 174, 191] 1 x [90, 230, 249] 1 x [147, 205] 1 x [102, 239] 1 x [150, 202] 1 x [46, 54, 155] 1 x [70, 74, 117] 1 x [84, 161] 1 x [121, 159, 181] 1 x [111, 123, 142] 1 x [76, 201] 1 x [82, 83, 154] 1 x [78, 180, 206] 1 x [94, 101, 240] 1 x [179, 196, 225] 1 x [16, 52, 193] 1 x [129, 222] 1 x [25, 42] 1 x [10, 28, 110] 1 x [68, 73, 168] 1 x [103, 107] 1 x [14, 141] 1 x [87, 241] 1 x [86, 153] 1 x [17, 204] 1 x [18, 33] 1 x [8, 24, 226] 1 x [209, 246] 1 x [126, 194] 1 x [3, 207] 1 x [7, 13]