Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:18:03 2012 Optimize a model with 4543 rows, 3540 columns and 16933 nonzeros Presolve removed 358 rows and 236 columns Presolve time: 0.12s Presolved: 4185 rows, 3304 columns, 15812 nonzeros Variable types: 0 continuous, 3304 integer (3304 binary) Found heuristic solution: objective 32.0000000 Root relaxation: objective 3.000000e+00, 3865 iterations, 0.21 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% - 0s Explored 0 nodes (5782 simplex iterations) in 0.49 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%