Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:58:02 2012 Optimize a model with 7668 rows, 11772 columns and 34344 nonzeros Presolve removed 242 rows and 2808 columns Presolve time: 0.15s Presolved: 7426 rows, 8964 columns, 30996 nonzeros Variable types: 0 continuous, 8964 integer (8964 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 3.000000e+00, 8662 iterations, 0.28 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 (10730 simplex iterations) in 0.55 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%