Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:29:51 2012 Optimize a model with 8520 rows, 5112 columns and 30388 nonzeros Presolve removed 713 rows and 213 columns Presolve time: 0.15s Presolved: 7807 rows, 4899 columns, 28471 nonzeros Variable types: 0 continuous, 4899 integer (4899 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 3.000000e+00, 6196 iterations, 0.56 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 1s Explored 0 nodes (10874 simplex iterations) in 1.19 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%