Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:22:18 2012 Optimize a model with 7539 rows, 4290 columns and 26583 nonzeros Presolve removed 847 rows and 2 columns Presolve time: 0.25s Presolved: 6692 rows, 4288 columns, 24297 nonzeros Variable types: 0 continuous, 4288 integer (4288 binary) Found heuristic solution: objective 65.0000000 Root relaxation: objective 3.000000e+00, 4970 iterations, 0.47 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% - 2s Explored 0 nodes (15591 simplex iterations) in 2.11 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%