Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:19:35 2012 Optimize a model with 44376 rows, 39800 columns and 171934 nonzeros Presolve removed 400 rows and 2 columns Presolve time: 1.07s Presolved: 44175 rows, 39798 columns, 210098 nonzeros Variable types: 0 continuous, 39798 integer (39798 binary) Found heuristic solution: objective 199.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30701 3.0000731e+00 2.599603e+01 0.000000e+00 5s 35785 3.0000798e+00 9.352932e+02 0.000000e+00 10s 40125 3.0000839e+00 2.544956e+01 0.000000e+00 15s 44465 3.0000882e+00 9.915976e+00 0.000000e+00 20s 46172 3.0000000e+00 0.000000e+00 0.000000e+00 22s Root relaxation: objective 3.000000e+00, 46172 iterations, 22.12 seconds Total elapsed time = 35.30s 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% - 38s Explored 0 nodes (92122 simplex iterations) in 38.44 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%