Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:04:25 2012 Optimize a model with 22239 rows, 25760 columns and 91678 nonzeros Presolve removed 349 rows and 4322 columns Presolve time: 0.53s Presolved: 21890 rows, 21438 columns, 86284 nonzeros Variable types: 0 continuous, 21438 integer (21438 binary) Found heuristic solution: objective 160.0000000 Root relaxation: objective 3.000000e+00, 15275 iterations, 1.58 seconds Total elapsed time = 9.13s 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% - 9s Explored 0 nodes (44580 simplex iterations) in 9.71 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%