Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:16:42 2012 Optimize a model with 41789 rows, 39800 columns and 164173 nonzeros Presolve removed 824 rows and 5176 columns Presolve time: 1.02s Presolved: 40965 rows, 34624 columns, 156597 nonzeros Variable types: 0 continuous, 34624 integer (34624 binary) Found heuristic solution: objective 199.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 32868 3.0000751e+00 2.408380e+01 0.000000e+00 5s 40068 3.0000817e+00 2.294555e+01 0.000000e+00 10s 44332 3.0000000e+00 0.000000e+00 0.000000e+00 15s Root relaxation: objective 3.000000e+00, 44332 iterations, 14.53 seconds Total elapsed time = 32.08s Total elapsed time = 35.43s 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% - 36s Explored 0 nodes (95605 simplex iterations) in 36.05 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%