Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:53:21 2012 Optimize a model with 8540 rows, 5402 columns and 30658 nonzeros Presolve removed 590 rows and 294 columns Presolve time: 0.36s Presolved: 7950 rows, 5108 columns, 28688 nonzeros Variable types: 0 continuous, 5108 integer (5108 binary) Found heuristic solution: objective 73.0000000 Root relaxation: objective 3.000000e+00, 4878 iterations, 0.45 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 (10287 simplex iterations) in 1.86 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%