Gurobi 5.0.1 (linux64) logging started Mon Feb 4 16:12:56 2013 Optimize a model with 696 rows, 256 columns and 2176 nonzeros Presolve removed 182 rows and 132 columns Presolve time: 0.00s Presolved: 514 rows, 124 columns, 1646 nonzeros Variable types: 8 continuous, 116 integer (116 binary) Found heuristic solution: objective 6461.0000000 Root relaxation: objective 5.521422e+03, 10 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 5521.42213 0 3 6461.00000 5521.42213 14.5% - 0s 0 0 5525.05263 0 1 6461.00000 5525.05263 14.5% - 0s H 0 0 5526.0000000 5525.05263 0.02% - 0s Cutting planes: Gomory: 1 Implied bound: 1 MIR: 1 Explored 0 nodes (16 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.526000000000e+03, best bound 5.526000000000e+03, gap 0.0%