Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:20:15 2012 Optimize a model with 6489 rows, 4032 columns and 23247 nonzeros Presolve removed 694 rows and 63 columns Presolve time: 0.13s Presolved: 5795 rows, 3969 columns, 21483 nonzeros Variable types: 0 continuous, 3969 integer (3969 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 3.000000e+00, 6256 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% - 0s Explored 0 nodes (8472 simplex iterations) in 0.81 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%