Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:27:53 2012 Optimize a model with 26659 rows, 29756 columns and 108874 nonzeros Presolve removed 373 rows and 4646 columns Presolve time: 0.59s Presolved: 26286 rows, 25110 columns, 103064 nonzeros Variable types: 0 continuous, 25110 integer (25110 binary) Found heuristic solution: objective 172.0000000 Root relaxation: objective 3.000000e+00, 16437 iterations, 2.02 seconds Total elapsed time = 11.90s 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% - 13s Explored 0 nodes (51990 simplex iterations) in 13.58 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%