Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:40:49 2012 Optimize a model with 46459 rows, 41006 columns and 179374 nonzeros Presolve removed 810 rows and 2 columns Presolve time: 1.22s Presolved: 45851 rows, 41004 columns, 217706 nonzeros Variable types: 0 continuous, 41004 integer (41004 binary) Found heuristic solution: objective 202.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 24460 3.0000757e+00 1.297485e+02 0.000000e+00 5s 29500 3.0000805e+00 4.455046e+01 0.000000e+00 10s 32121 3.0000000e+00 0.000000e+00 0.000000e+00 13s Root relaxation: objective 3.000000e+00, 32121 iterations, 13.00 seconds Total elapsed time = 37.17s Total elapsed time = 40.72s 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 (91317 simplex iterations) in 40.92 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%