Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:46:42 2012 Optimize a model with 40933 rows, 37830 columns and 159660 nonzeros Presolve removed 411 rows and 4076 columns Presolve time: 0.98s Presolved: 40522 rows, 33754 columns, 154198 nonzeros Variable types: 0 continuous, 33754 integer (33754 binary) Found heuristic solution: objective 194.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22663 3.0000788e+00 5.086336e+02 0.000000e+00 5s 27661 3.0000849e+00 1.131352e+01 0.000000e+00 10s 31196 3.0000000e+00 0.000000e+00 0.000000e+00 14s Root relaxation: objective 3.000000e+00, 31196 iterations, 13.66 seconds Total elapsed time = 41.60s 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% - 44s Explored 0 nodes (83740 simplex iterations) in 44.52 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%