Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:53:25 2012 Optimize a model with 10803 rows, 5402 columns and 37447 nonzeros Presolve removed 1829 rows and 148 columns Presolve time: 0.45s Presolved: 8974 rows, 5254 columns, 32675 nonzeros Variable types: 0 continuous, 5254 integer (5254 binary) Found heuristic solution: objective 73.0000000 Root relaxation: objective 3.000000e+00, 8256 iterations, 1.68 seconds Total elapsed time = 5.47s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 1166 73.00000 3.00000 95.9% - 5s H 0 0 66.0000000 3.00000 95.5% - 6s H 0 0 3.0000000 3.00000 0.0% - 6s Explored 0 nodes (22837 simplex iterations) in 6.26 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%