Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:53:00 2013 Optimize a model with 226650 rows, 225150 columns and 900150 nonzeros Presolve removed 8561 rows and 0 columns Presolve time: 2.31s Presolved: 218089 rows, 225150 columns, 883028 nonzeros Variable types: 225000 continuous, 150 integer (150 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 21397 1.3678156e+05 1.784855e+04 0.000000e+00 5s 28623 1.6277388e+05 5.562573e+04 0.000000e+00 10s 35592 2.1510457e+05 7.537792e+04 0.000000e+00 15s 42676 2.5068825e+05 1.324716e+04 0.000000e+00 20s 46471 2.5654761e+05 9.149260e+03 0.000000e+00 25s 50519 2.5883561e+05 6.003339e+03 0.000000e+00 30s 53475 2.5934198e+05 0.000000e+00 0.000000e+00 35s Root relaxation: objective 2.593420e+05, 53475 iterations, 34.95 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 259341.979 0 7 - 259341.979 - - 38s H 0 0 275797.00000 259341.979 5.97% - 39s H 0 0 260925.00000 259341.979 0.61% - 41s 0 0 259343.683 0 8 260925.000 259343.683 0.61% - 43s 0 0 259343.683 0 7 260925.000 259343.683 0.61% - 71s 0 0 259343.683 0 8 260925.000 259343.683 0.61% - 73s 0 0 259343.721 0 8 260925.000 259343.721 0.61% - 74s 0 0 259343.723 0 8 260925.000 259343.723 0.61% - 76s 0 2 259345.846 0 8 260925.000 259345.846 0.61% - 89s 1 4 259520.519 1 7 260925.000 259520.519 0.54% 949 90s 11 13 259745.500 10 1 260925.000 259554.741 0.53% 317 95s H 13 13 260202.00000 259554.741 0.25% 281 96s 22 16 259839.750 21 2 260202.000 259554.741 0.25% 236 100s 35 21 259897.857 34 1 260202.000 259554.741 0.25% 193 105s 46 22 259821.860 2 7 260202.000 259555.533 0.25% 204 110s H 53 25 260175.47059 259555.533 0.24% 207 112s H 54 23 260096.00000 259555.533 0.21% 204 113s 59 25 259918.035 1 7 260096.000 259664.574 0.17% 227 116s 70 26 260057.354 5 2 260096.000 259733.991 0.14% 237 120s 84 28 cutoff 9 260096.000 259737.857 0.14% 253 125s H 85 25 260009.00000 259737.857 0.10% 250 125s * 86 24 12 259983.00000 259737.857 0.09% 248 125s 111 22 259975.109 8 2 259983.000 259806.411 0.07% 222 130s * 133 0 23 259933.00000 259933.000 0.0% 207 133s Cutting planes: Gomory: 2 Flow cover: 10 Explored 134 nodes (112422 simplex iterations) in 133.16 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.599330000000e+05, best bound 2.599330000000e+05, gap 0.0%