Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:42:41 2012 Optimize a model with 10295 rows, 5256 columns and 35782 nonzeros Presolve removed 2092 rows and 146 columns Presolve time: 0.40s Presolved: 8203 rows, 5110 columns, 30298 nonzeros Variable types: 0 continuous, 5110 integer (5110 binary) Found heuristic solution: objective 72.0000000 Root relaxation: objective 3.000000e+00, 6724 iterations, 1.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 848 72.00000 3.00000 95.8% - 3s H 0 0 52.0000000 3.00000 94.2% - 3s H 0 0 3.0000000 3.00000 0.0% - 3s Explored 0 nodes (16875 simplex iterations) in 3.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%