Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:16:02 2012 Optimize a model with 4290 rows, 3080 columns and 15730 nonzeros Presolve removed 717 rows and 110 columns Presolve time: 0.09s Presolved: 3573 rows, 2970 columns, 13860 nonzeros Variable types: 0 continuous, 2970 integer (2970 binary) Found heuristic solution: objective 30.0000000 Root relaxation: objective 3.000000e+00, 3454 iterations, 0.14 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 (4750 simplex iterations) in 0.33 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%