Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:25:05 2012 Optimize a model with 6799 rows, 4692 columns and 24750 nonzeros Presolve removed 142 rows and 274 columns Presolve time: 0.25s Presolved: 6657 rows, 4418 columns, 23942 nonzeros Variable types: 0 continuous, 4418 integer (4418 binary) Found heuristic solution: objective 68.0000000 Root relaxation: objective 3.000000e+00, 5186 iterations, 0.41 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 (11140 simplex iterations) in 1.38 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%