Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:17:03 2012 Optimize a model with 33472 rows, 35156 columns and 134638 nonzeros Presolve removed 376 rows and 2 columns Presolve time: 0.81s Presolved: 33283 rows, 35154 columns, 168318 nonzeros Variable types: 0 continuous, 35154 integer (35154 binary) Found heuristic solution: objective 187.0000000 Root relaxation: objective 3.000000e+00, 20771 iterations, 3.52 seconds Total elapsed time = 13.32s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 90 187.00000 3.00000 98.4% - 14s H 0 0 3.0000000 3.00000 0.0% - 14s Explored 0 nodes (57743 simplex iterations) in 14.97 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%