Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:14:33 2012 Optimize a model with 33472 rows, 35156 columns and 134638 nonzeros Presolve removed 400 rows and 4490 columns Presolve time: 0.80s Presolved: 33072 rows, 30666 columns, 128861 nonzeros Variable types: 0 continuous, 30666 integer (30666 binary) Found heuristic solution: objective 187.0000000 Root relaxation: objective 3.000000e+00, 23479 iterations, 4.21 seconds Total elapsed time = 15.20s 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% - 20s Explored 0 nodes (82177 simplex iterations) in 20.24 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%