Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:49:51 2012 Optimize a model with 30966 rows, 32220 columns and 124224 nonzeros Presolve removed 718 rows and 2 columns Presolve time: 0.77s Presolved: 30427 rows, 32218 columns, 154137 nonzeros Variable types: 0 continuous, 32218 integer (32218 binary) Found heuristic solution: objective 179.0000000 Root relaxation: objective 3.000000e+00, 21155 iterations, 3.56 seconds Total elapsed time = 11.61s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 38 179.00000 3.00000 98.3% - 12s H 0 0 3.0000000 3.00000 0.0% - 12s Explored 0 nodes (54688 simplex iterations) in 12.53 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%