Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:36:04 2012 Optimize a model with 46459 rows, 41006 columns and 179374 nonzeros Presolve removed 430 rows and 4850 columns Presolve time: 1.18s Presolved: 46029 rows, 36156 columns, 173060 nonzeros Variable types: 0 continuous, 36156 integer (36156 binary) Found heuristic solution: objective 202.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24242 3.0000742e+00 2.850000e+01 0.000000e+00 5s 30384 3.0000000e+00 0.000000e+00 0.000000e+00 10s Root relaxation: objective 3.000000e+00, 30384 iterations, 9.53 seconds Total elapsed time = 30.32s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 52 202.00000 3.00000 98.5% - 31s H 0 0 3.0000000 3.00000 0.0% - 31s Explored 0 nodes (87237 simplex iterations) in 31.79 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%