Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:07:18 2013 Optimize a model with 50800 rows, 125150 columns and 400250 nonzeros Presolve removed 50 rows and 50 columns Presolve time: 1.58s Presolved: 50750 rows, 125100 columns, 350200 nonzeros Variable types: 75100 continuous, 50000 integer (50000 binary) Root relaxation: objective 1.824192e+05, 4419 iterations, 0.64 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 182419.206 0 2 - 182419.206 - - 8s 0 0 182482.536 0 11 - 182482.536 - - 9s 0 0 182493.178 0 8 - 182493.178 - - 10s 0 0 182499.137 0 8 - 182499.137 - - 11s 0 0 182502.932 0 8 - 182502.932 - - 12s 0 0 182503.822 0 8 - 182503.822 - - 12s 0 0 182505.370 0 9 - 182505.370 - - 13s 0 0 182505.370 0 9 - 182505.370 - - 13s 0 0 182508.369 0 8 - 182508.369 - - 15s 0 0 182508.734 0 8 - 182508.734 - - 15s 0 0 182508.734 0 8 - 182508.734 - - 16s 0 0 182509.480 0 8 - 182509.480 - - 17s 0 0 182509.480 0 8 - 182509.480 - - 19s 0 2 182509.480 0 8 - 182509.480 - - 28s 8 10 183397.231 4 2 - 182701.496 - 161 30s * 29 15 15 184122.99068 182701.496 0.77% 87.5 34s 36 11 183773.394 21 2 184122.991 182701.496 0.77% 71.3 35s 89 11 183835.088 74 2 184122.991 182701.496 0.77% 30.0 40s 149 11 183872.794 134 2 184122.991 182701.496 0.77% 19.5 45s 201 11 183895.433 186 2 184122.991 182701.496 0.77% 15.7 50s 255 13 183919.274 239 4 184122.991 182701.496 0.77% 14.1 55s 299 13 183938.170 283 4 184122.991 182701.496 0.77% 13.7 60s 327 13 183951.100 311 2 184122.991 182701.496 0.77% 13.6 67s 349 13 183960.744 333 4 184122.991 182701.496 0.77% 13.4 70s 354 13 183962.758 338 4 184122.991 182701.496 0.77% 13.4 75s 381 13 183975.684 365 2 184122.991 182701.496 0.77% 13.4 80s 418 13 183993.744 402 4 184122.991 182701.496 0.77% 13.4 85s 458 13 184013.234 442 4 184122.991 182701.496 0.77% 13.6 90s 497 13 184033.392 481 4 184122.991 182701.496 0.77% 13.8 95s 534 13 184053.338 518 2 184122.991 182701.496 0.77% 13.7 100s 576 13 184070.332 560 2 184122.991 182701.496 0.77% 13.8 105s 625 13 184090.346 609 2 184122.991 182701.496 0.77% 13.6 110s 676 13 184112.090 660 6 184122.991 182701.496 0.77% 13.4 115s 685 13 184115.761 669 6 184122.991 182701.496 0.77% 13.4 122s * 712 9 8 183873.05062 182701.496 0.64% 13.7 123s 722 11 182841.894 7 4 183873.051 182833.788 0.57% 13.7 125s * 732 1 12 182900.20810 182868.601 0.02% 13.7 125s * 747 4 20 182879.22514 182879.222 0.00% 13.5 126s Cutting planes: Gomory: 1 Implied bound: 40 Flow cover: 3 Explored 748 nodes (16361 simplex iterations) in 126.90 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.828792251419e+05, best bound 1.828792224048e+05, gap 0.0000%