Gurobi 5.0.1 (linux64) logging started Wed Apr 24 00:53:12 2013 Optimize a model with 8148 rows, 7868 columns and 31388 nonzeros Presolve removed 1177 rows and 0 columns Presolve time: 0.04s Presolved: 6971 rows, 7868 columns, 29034 nonzeros Variable types: 7840 continuous, 28 integer (28 binary) Root relaxation: objective 2.678400e+04, 757 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 26784.0000 0 1 - 26784.0000 - - 0s H 0 0 26810.000000 26784.0000 0.10% - 0s 0 0 26790.2500 0 1 26810.0000 26790.2500 0.07% - 0s H 0 0 26806.000000 26790.2500 0.06% - 0s Cutting planes: Gomory: 1 Explored 0 nodes (773 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.680600000000e+04, best bound 2.680600000000e+04, gap 0.0%