Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:21:55 2012 Optimize a model with 40197 rows, 39800 columns and 159397 nonzeros Presolve removed 798 rows and 2 columns Presolve time: 0.96s Presolved: 39598 rows, 39798 columns, 196612 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 24817 3.0000833e+00 1.873669e+01 0.000000e+00 5s 29550 3.0000000e+00 0.000000e+00 0.000000e+00 9s Root relaxation: objective 3.000000e+00, 29550 iterations, 8.82 seconds Total elapsed time = 25.35s 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% - 28s Explored 0 nodes (76251 simplex iterations) in 28.76 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%