Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:38:44 2012 Optimize a model with 45045 rows, 41006 columns and 175132 nonzeros Presolve removed 831 rows and 4244 columns Presolve time: 1.19s Presolved: 44214 rows, 36762 columns, 168432 nonzeros Variable types: 0 continuous, 36762 integer (36762 binary) Found heuristic solution: objective 202.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 26650 3.0000813e+00 1.724576e+01 0.000000e+00 5s 31857 3.0000000e+00 0.000000e+00 0.000000e+00 9s Root relaxation: objective 3.000000e+00, 31857 iterations, 9.32 seconds Total elapsed time = 31.78s Total elapsed time = 36.10s 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% - 36s Explored 0 nodes (97801 simplex iterations) in 36.74 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%