Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:00:34 2012 Optimize a model with 7992 rows, 12432 columns and 35964 nonzeros Presolve removed 249 rows and 2997 columns Presolve time: 0.16s Presolved: 7743 rows, 9435 columns, 32412 nonzeros Variable types: 0 continuous, 9435 integer (9435 binary) Found heuristic solution: objective 37.0000000 Root relaxation: objective 3.000000e+00, 10229 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% - 0s Explored 0 nodes (12727 simplex iterations) in 0.76 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%