Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:51:19 2012 Optimize a model with 16757 rows, 21756 columns and 71293 nonzeros Presolve removed 323 rows and 3971 columns Presolve time: 0.36s Presolved: 16434 rows, 17785 columns, 66365 nonzeros Variable types: 0 continuous, 17785 integer (17785 binary) Found heuristic solution: objective 147.0000000 Root relaxation: objective 3.000000e+00, 11461 iterations, 0.97 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 16 147.00000 3.00000 98.0% - 3s H 0 0 3.0000000 3.00000 0.0% - 3s Explored 0 nodes (27854 simplex iterations) in 3.98 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%