Gurobi 5.0.1 (linux64) logging started Mon Feb 4 19:09:04 2013 Optimize a model with 76153 rows, 5929 columns and 231231 nonzeros Presolve removed 13806 rows and 3144 columns Presolve time: 0.61s Presolved: 62347 rows, 2785 columns, 188370 nonzeros Variable types: 18 continuous, 2767 integer (2767 binary) Found heuristic solution: objective 142186.00000 Root relaxation: objective 1.189395e+05, 9269 iterations, 0.92 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 118939.513 0 9 142186.000 118939.513 16.3% - 1s H 0 0 118956.00000 118939.513 0.01% - 1s H 0 0 118951.00000 118939.513 0.01% - 1s Explored 0 nodes (9313 simplex iterations) in 1.87 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.189510000000e+05, best bound 1.189400000000e+05, gap 0.0092%