Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:26:11 2012 Optimize a model with 23084 rows, 29412 columns and 97810 nonzeros Presolve removed 344 rows and 2 columns Presolve time: 0.55s Presolved: 22911 rows, 29410 columns, 125930 nonzeros Variable types: 0 continuous, 29410 integer (29410 binary) Found heuristic solution: objective 171.0000000 Root relaxation: objective 3.000000e+00, 17758 iterations, 1.96 seconds Total elapsed time = 7.89s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 90 171.00000 3.00000 98.2% - 8s H 0 0 3.0000000 3.00000 0.0% - 9s Explored 0 nodes (47236 simplex iterations) in 9.06 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%