Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:13:50 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 8.379588e+04, 1952 iterations, 0.06 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 83795.8815 0 6 - 83795.8815 - - 0s H 0 0 88769.000000 83795.8815 5.60% - 0s H 0 0 84324.000000 83795.8815 0.63% - 0s 0 0 84009.6877 0 4 84324.0000 84009.6877 0.37% - 0s 0 0 84009.6877 0 6 84324.0000 84009.6877 0.37% - 0s 0 0 84009.6877 0 4 84324.0000 84009.6877 0.37% - 0s 0 0 84021.6617 0 3 84324.0000 84021.6617 0.36% - 0s 0 0 84031.6238 0 3 84324.0000 84031.6238 0.35% - 0s 0 0 84038.4742 0 4 84324.0000 84038.4742 0.34% - 0s 0 0 84041.2728 0 3 84324.0000 84041.2728 0.34% - 0s 0 0 84041.7670 0 5 84324.0000 84041.7670 0.33% - 0s 0 0 84044.9029 0 3 84324.0000 84044.9029 0.33% - 0s 0 2 84059.1286 0 3 84324.0000 84059.1286 0.31% - 1s * 10 2 8 84282.000000 84191.8774 0.11% 38.7 1s Cutting planes: Implied bound: 95 Flow cover: 10 Explored 14 nodes (4572 simplex iterations) in 1.42 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.428200000000e+04, best bound 8.428200000000e+04, gap 0.0%