Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:13:46 2013 Optimize a model with 759 rows, 47679 columns and 95289 nonzeros Presolve time: 0.07s Presolved: 759 rows, 47679 columns, 95289 nonzeros Variable types: 47610 continuous, 69 integer (69 binary) Root relaxation: objective 8.239635e+04, 1873 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 82396.3490 0 8 - 82396.3490 - - 0s H 0 0 89142.000000 82396.3490 7.57% - 0s H 0 0 83648.000000 82396.3490 1.50% - 0s 0 0 82798.4210 0 8 83648.0000 82798.4210 1.02% - 0s 0 0 82902.9505 0 9 83648.0000 82902.9505 0.89% - 0s 0 0 82913.4463 0 5 83648.0000 82913.4463 0.88% - 0s 0 0 82915.9151 0 7 83648.0000 82915.9151 0.88% - 0s 0 0 82916.0025 0 7 83648.0000 82916.0025 0.88% - 0s 0 0 82916.7589 0 5 83648.0000 82916.7589 0.87% - 0s 0 0 82916.9949 0 5 83648.0000 82916.9949 0.87% - 0s H 0 0 83366.000000 82916.9949 0.54% - 1s 0 0 82916.9949 0 8 83366.0000 82916.9949 0.54% - 1s 0 0 82916.9949 0 8 83366.0000 82916.9949 0.54% - 1s 0 0 82916.9949 0 10 83366.0000 82916.9949 0.54% - 1s 0 0 82916.9949 0 6 83366.0000 82916.9949 0.54% - 1s 0 0 82916.9949 0 7 83366.0000 82916.9949 0.54% - 1s 0 0 82916.9949 0 7 83366.0000 82916.9949 0.54% - 1s 0 0 82916.9949 0 5 83366.0000 82916.9949 0.54% - 1s 0 0 82916.9949 0 5 83366.0000 82916.9949 0.54% - 1s 0 2 82930.7515 0 5 83366.0000 82930.7515 0.52% - 1s * 31 10 10 83322.000000 83118.7531 0.24% 61.3 2s * 70 3 8 83304.000000 83254.9666 0.06% 54.9 3s * 73 0 7 83277.000000 83277.0000 0.0% 53.7 3s Cutting planes: Implied bound: 155 Flow cover: 13 Explored 74 nodes (8441 simplex iterations) in 3.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.327700000000e+04, best bound 8.327700000000e+04, gap 0.0%