Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:25:23 2012 Optimize a model with 34397 rows, 35910 columns and 138157 nonzeros Presolve removed 380 rows and 2 columns Presolve time: 0.84s Presolved: 34206 rows, 35908 columns, 172573 nonzeros Variable types: 0 continuous, 35908 integer (35908 binary) Found heuristic solution: objective 189.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 27691 3.0000730e+00 4.781913e+01 0.000000e+00 5s 29983 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 29983 iterations, 6.82 seconds Total elapsed time = 20.49s 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% - 23s Explored 0 nodes (70559 simplex iterations) in 23.25 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%