Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:08:12 2013 Optimize a model with 73226 rows, 5776 columns and 222376 nonzeros Presolve removed 6652 rows and 2952 columns Presolve time: 0.60s Presolved: 66574 rows, 2824 columns, 201619 nonzeros Variable types: 26 continuous, 2798 integer (2798 binary) Found heuristic solution: objective 141958.00000 Root relaxation: objective 1.164388e+05, 12900 iterations, 1.24 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 116438.839 0 8 141958.000 116438.839 18.0% - 2s H 0 0 116452.00000 116438.839 0.01% - 2s H 0 0 116444.00000 116438.839 0.00% - 2s Explored 0 nodes (12908 simplex iterations) in 2.12 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.164440000000e+05, best bound 1.164390000000e+05, gap 0.0043%