Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:30:08 2012 Optimize a model with 40599 rows, 40200 columns and 160998 nonzeros Presolve removed 402 rows and 2 columns Presolve time: 1.02s Presolved: 40397 rows, 40198 columns, 199596 nonzeros Variable types: 0 continuous, 40198 integer (40198 binary) Found heuristic solution: objective 200.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 30724 3.0000698e+00 4.900000e+01 0.000000e+00 5s 38697 3.0000726e+00 1.455092e+01 0.000000e+00 10s 39470 3.0000000e+00 0.000000e+00 0.000000e+00 11s Root relaxation: objective 3.000000e+00, 39470 iterations, 10.58 seconds Total elapsed time = 23.00s 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% - 23s Explored 0 nodes (74882 simplex iterations) in 23.58 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%