Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:21:01 2012 Optimize a model with 6848 rows, 4160 columns and 24448 nonzeros Presolve removed 1089 rows and 64 columns Presolve time: 0.15s Presolved: 5759 rows, 4096 columns, 21696 nonzeros Variable types: 0 continuous, 4096 integer (4096 binary) Found heuristic solution: objective 39.0000000 Root relaxation: objective 3.000000e+00, 6145 iterations, 0.49 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 (9487 simplex iterations) in 0.96 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%