Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:42:45 2013 Optimize a model with 5700 rows, 30100 columns and 70050 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.41s Presolved: 5550 rows, 30000 columns, 64900 nonzeros Variable types: 27550 continuous, 2450 integer (2450 binary) Root relaxation: objective 1.650739e+05, 5450 iterations, 0.31 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 165259.640 0 4 - 165259.640 - - 0s 0 0 165365.972 0 4 - 165365.972 - - 1s 0 0 165409.969 0 4 - 165409.969 - - 1s 0 0 165415.884 0 3 - 165415.884 - - 1s 0 0 165426.247 0 3 - 165426.247 - - 1s 0 0 165433.746 0 3 - 165433.746 - - 1s 0 0 165435.480 0 3 - 165435.480 - - 1s 0 0 165435.850 0 3 - 165435.850 - - 1s 0 0 165438.486 0 4 - 165438.486 - - 2s 0 0 165439.908 0 3 - 165439.908 - - 2s 0 0 165439.944 0 3 - 165439.944 - - 2s 0 0 165440.222 0 3 - 165440.222 - - 2s 0 2 165440.381 0 3 - 165440.381 - - 4s 12 14 165557.394 12 1 - 165475.403 - 33.7 5s H 15 8 165659.54672 165475.403 0.11% 33.9 5s H 16 5 165641.19474 165475.403 0.10% 33.9 5s * 20 3 20 165633.65551 165475.403 0.10% 35.0 5s * 32 5 19 165630.31826 165518.005 0.07% 25.5 5s H 54 7 165621.92658 165544.256 0.05% 17.9 6s Cutting planes: Gomory: 2 Flow cover: 25 Explored 73 nodes (6938 simplex iterations) in 6.43 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.656219265842e+05, best bound 1.656072610529e+05, gap 0.0089%