Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:45:28 2013 Optimize a model with 3400 rows, 201300 columns and 1403400 nonzeros Presolve removed 100 rows and 100 columns Presolve time: 2.26s Presolved: 3300 rows, 201200 columns, 1303300 nonzeros Variable types: 200200 continuous, 1000 integer (1000 binary) Root relaxation: objective 7.918217e+05, 7272 iterations, 1.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 791821.709 0 6 - 791821.709 - - 4s 0 0 791828.920 0 6 - 791828.920 - - 6s 0 0 791831.471 0 9 - 791831.471 - - 6s 0 0 791833.402 0 9 - 791833.402 - - 7s 0 0 791834.497 0 9 - 791834.497 - - 8s 0 0 791834.603 0 9 - 791834.603 - - 9s 0 0 791834.603 0 9 - 791834.603 - - 10s 0 0 791834.636 0 9 - 791834.636 - - 11s 0 0 791834.647 0 9 - 791834.647 - - 12s 0 0 791834.655 0 9 - 791834.655 - - 13s 0 0 791834.655 0 9 - 791834.655 - - 16s 0 2 791844.425 0 9 - 791844.425 - - 33s 3 5 792609.720 3 3 - 792439.824 - 216 35s 15 17 793672.832 14 3 - 792439.824 - 90.7 40s 31 33 793757.223 30 3 - 792439.824 - 46.5 45s 48 50 793821.188 47 3 - 792439.824 - 31.5 50s 62 64 793892.639 61 1 - 792439.824 - 25.1 55s 75 77 793952.428 74 1 - 792439.824 - 21.2 60s 84 86 793989.593 83 1 - 792439.824 - 19.2 65s 93 95 794043.930 92 1 - 792439.824 - 17.7 70s 105 107 794107.899 104 3 - 792439.824 - 15.9 75s 118 120 794198.925 117 1 - 792439.824 - 14.4 80s 130 132 794272.559 129 1 - 792439.824 - 13.2 85s 135 137 794316.873 134 1 - 792439.824 - 12.9 90s 143 145 794388.386 142 1 - 792439.824 - 12.3 95s 154 156 794492.249 152 1 - 792439.824 - 11.9 100s * 165 23 163 794562.32278 792439.824 0.27% 11.8 104s 168 19 794544.064 160 1 794562.323 792439.824 0.27% 11.6 105s 193 32 793497.305 21 3 794562.323 792576.606 0.25% 14.4 110s H 194 19 793514.51606 792576.606 0.12% 14.3 110s * 218 22 45 793509.00259 792576.606 0.12% 13.4 114s 222 23 792701.879 6 3 793509.003 792581.158 0.12% 13.9 115s 247 38 793484.408 26 3 793509.003 792581.158 0.12% 15.1 120s * 261 18 10 793200.24980 792703.531 0.06% 16.5 123s 275 14 793009.261 12 3 793200.250 792759.623 0.06% 18.8 125s 311 13 cutoff 3 793200.250 792897.670 0.04% 20.5 130s Cutting planes: Flow cover: 14 Explored 346 nodes (16483 simplex iterations) in 134.96 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.932002498024e+05, best bound 7.931375857329e+05, gap 0.0079%