Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:53:08 2012 Optimize a model with 42227 rows, 41820 columns and 167482 nonzeros Presolve removed 1258 rows and 6530 columns Presolve time: 1.10s Presolved: 40969 rows, 35290 columns, 157492 nonzeros Variable types: 0 continuous, 35290 integer (35290 binary) Found heuristic solution: objective 204.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29465 3.0000761e+00 7.763111e+01 0.000000e+00 5s 34265 3.0000811e+00 3.800670e+00 0.000000e+00 10s 36663 3.0000000e+00 0.000000e+00 0.000000e+00 13s Root relaxation: objective 3.000000e+00, 36663 iterations, 12.57 seconds Total elapsed time = 33.52s Total elapsed time = 38.76s 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% - 40s Explored 0 nodes (107315 simplex iterations) in 40.12 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%