Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:01:05 2012 Optimize a model with 36035 rows, 33306 columns and 140502 nonzeros Presolve removed 1276 rows and 2 columns Presolve time: 0.98s Presolved: 34941 rows, 33304 columns, 170150 nonzeros Variable types: 0 continuous, 33304 integer (33304 binary) Found heuristic solution: objective 182.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 29211 3.0000819e+00 2.461883e+01 0.000000e+00 5s 34650 3.0000876e+00 7.555957e+00 0.000000e+00 10s 36639 3.0000000e+00 0.000000e+00 0.000000e+00 12s Root relaxation: objective 3.000000e+00, 36639 iterations, 12.07 seconds Total elapsed time = 35.73s 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% - 37s Explored 0 nodes (84889 simplex iterations) in 37.03 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%