Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:15:21 2012 Optimize a model with 3223 rows, 2756 columns and 12166 nonzeros Presolve removed 109 rows and 158 columns Presolve time: 0.10s Presolved: 3114 rows, 2598 columns, 11630 nonzeros Variable types: 0 continuous, 2598 integer (2598 binary) Found heuristic solution: objective 52.0000000 Root relaxation: objective 3.000000e+00, 2385 iterations, 0.08 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 (4565 simplex iterations) in 0.34 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%