Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:55:32 2012 Optimize a model with 18053 rows, 23562 columns and 76957 nonzeros Presolve removed 345 rows and 5663 columns Presolve time: 0.39s Presolved: 17708 rows, 17899 columns, 70299 nonzeros Variable types: 0 continuous, 17899 integer (17899 binary) Found heuristic solution: objective 153.0000000 Root relaxation: objective 3.000000e+00, 11155 iterations, 0.95 seconds Total elapsed time = 5.51s 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% - 5s Explored 0 nodes (31449 simplex iterations) in 5.90 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%