Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:52:17 2013 Optimize a model with 10700 rows, 35100 columns and 90050 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.27s Presolved: 10550 rows, 35000 columns, 79900 nonzeros Variable types: 30050 continuous, 4950 integer (4950 binary) Root relaxation: objective 1.650739e+05, 7656 iterations, 0.34 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 165073.856 0 2 - 165073.856 - - 0s 0 0 165230.369 0 3 - 165230.369 - - 0s 0 0 165328.741 0 3 - 165328.741 - - 1s 0 0 165366.427 0 2 - 165366.427 - - 1s 0 0 165374.656 0 1 - 165374.656 - - 1s 0 0 165382.209 0 2 - 165382.209 - - 1s 0 0 165386.445 0 2 - 165386.445 - - 1s 0 0 165388.649 0 1 - 165388.649 - - 1s 0 0 165390.879 0 1 - 165390.879 - - 1s 0 0 165392.598 0 1 - 165392.598 - - 1s 0 0 165393.893 0 1 - 165393.893 - - 1s 0 0 165394.361 0 2 - 165394.361 - - 2s 0 0 165395.135 0 1 - 165395.135 - - 2s 0 0 165395.942 0 1 - 165395.942 - - 2s 0 0 165396.053 0 1 - 165396.053 - - 2s 0 0 165396.119 0 1 - 165396.119 - - 2s 0 0 165396.123 0 1 - 165396.123 - - 2s 0 2 165396.407 0 1 - 165396.407 - - 4s 8 10 165462.062 8 2 - 165462.062 - 60.8 5s * 34 19 28 165653.84682 165489.952 0.10% 52.3 6s * 49 21 26 165635.47456 165492.581 0.09% 39.4 6s * 186 56 30 165631.84499 165562.487 0.04% 16.4 7s * 236 53 30 165630.32597 165577.746 0.03% 14.5 8s H 247 41 165622.02686 165583.182 0.02% 14.1 8s Cutting planes: Gomory: 2 Flow cover: 17 Explored 323 nodes (12459 simplex iterations) in 8.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656220268557e+05, best bound 1.656074760618e+05, gap 0.0088%