Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:51:29 2013 Optimize a model with 176 rows, 2576 columns and 5136 nonzeros Presolve time: 0.00s Presolved: 176 rows, 2576 columns, 5136 nonzeros Variable types: 2560 continuous, 16 integer (16 binary) Root relaxation: objective 1.911094e+04, 186 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 19110.9447 0 3 - 19110.9447 - - 0s H 0 0 19426.000000 19110.9447 1.62% - 0s H 0 0 19195.000000 19110.9447 0.44% - 0s * 0 0 0 19175.000000 19175.0000 0.0% - 0s Cutting planes: Implied bound: 8 Flow cover: 4 Explored 0 nodes (201 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.917500000000e+04, best bound 1.917500000000e+04, gap 0.0%