Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:09:39 2012 Optimize a model with 44153 rows, 39402 columns and 170872 nonzeros Presolve removed 418 rows and 3962 columns Presolve time: 1.05s Presolved: 43735 rows, 35440 columns, 165480 nonzeros Variable types: 0 continuous, 35440 integer (35440 binary) Found heuristic solution: objective 198.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29854 3.0000738e+00 3.770616e+01 0.000000e+00 5s 35266 3.0000803e+00 1.112125e+01 0.000000e+00 10s 40555 3.0000861e+00 2.424550e+00 0.000000e+00 15s 41773 3.0000000e+00 0.000000e+00 0.000000e+00 16s Root relaxation: objective 3.000000e+00, 41773 iterations, 15.74 seconds Total elapsed time = 34.46s Total elapsed time = 37.39s 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 (118049 simplex iterations) in 40.14 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%