Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:17:48 2012 Optimize a model with 4813 rows, 3422 columns and 17572 nonzeros Presolve removed 236 rows and 118 columns Presolve time: 0.12s Presolved: 4577 rows, 3304 columns, 16718 nonzeros Variable types: 0 continuous, 3304 integer (3304 binary) Found heuristic solution: objective 58.0000000 Root relaxation: objective 3.000000e+00, 3175 iterations, 0.19 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 (8877 simplex iterations) in 0.73 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%