Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:24:51 2012 Optimize a model with 6732 rows, 4692 columns and 24616 nonzeros Presolve removed 140 rows and 272 columns Presolve time: 0.13s Presolved: 6592 rows, 4420 columns, 24004 nonzeros Variable types: 0 continuous, 4420 integer (4420 binary) Found heuristic solution: objective 41.0000000 Root relaxation: objective 3.000000e+00, 7063 iterations, 0.53 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 (9695 simplex iterations) in 0.86 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%