Gurobi 5.0.1 (linux64) logging started Fri Nov 16 23:36:48 2012 Optimize a model with 43227 rows, 41006 columns and 169678 nonzeros Presolve removed 430 rows and 4850 columns Presolve time: 1.10s Presolved: 42797 rows, 36156 columns, 163396 nonzeros Variable types: 0 continuous, 36156 integer (36156 binary) Found heuristic solution: objective 202.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27506 3.0000823e+00 3.400000e+01 0.000000e+00 5s 33850 3.0000841e+00 4.812500e+00 0.000000e+00 10s 34231 3.0000000e+00 0.000000e+00 0.000000e+00 10s Root relaxation: objective 3.000000e+00, 34231 iterations, 10.19 seconds Total elapsed time = 25.38s 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% - 27s Explored 0 nodes (73376 simplex iterations) in 27.30 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%