Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:26:30 2013 Optimize a model with 1430 rows, 169130 columns and 338130 nonzeros Presolve time: 0.36s Presolved: 1430 rows, 169130 columns, 338130 nonzeros Variable types: 169000 continuous, 130 integer (130 binary) Root relaxation: objective 1.570474e+05, 5012 iterations, 0.33 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 157047.359 0 6 - 157047.359 - - 0s H 0 0 163185.00000 157047.359 3.76% - 1s 0 0 157124.914 0 4 163185.000 157124.914 3.71% - 1s H 0 0 159150.15847 157124.914 1.27% - 1s H 0 0 158936.00000 157124.914 1.14% - 1s H 0 0 157280.00000 157124.914 0.10% - 1s 0 0 157137.230 0 3 157280.000 157137.230 0.09% - 2s 0 0 157137.230 0 6 157280.000 157137.230 0.09% - 2s 0 0 157137.230 0 4 157280.000 157137.230 0.09% - 2s 0 0 157137.230 0 3 157280.000 157137.230 0.09% - 3s 0 0 157137.433 0 2 157280.000 157137.433 0.09% - 3s 0 0 157137.433 0 2 157280.000 157137.433 0.09% - 3s 0 0 157137.433 0 2 157280.000 157137.433 0.09% - 3s 0 0 157137.433 0 2 157280.000 157137.433 0.09% - 3s 0 0 157173.847 0 3 157280.000 157173.847 0.07% - 3s 0 0 157174.282 0 2 157280.000 157174.282 0.07% - 4s 0 2 157174.782 0 2 157280.000 157174.782 0.07% - 4s Cutting planes: Implied bound: 68 Flow cover: 4 Explored 8 nodes (8244 simplex iterations) in 4.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.572800000000e+05, best bound 1.572743025176e+05, gap 0.0036%