Gurobi 5.0.1 (linux64) logging started Fri Nov 16 22:36:19 2012 Optimize a model with 39551 rows, 37056 columns and 154750 nonzeros Presolve removed 410 rows and 4610 columns Presolve time: 1.06s Presolved: 39141 rows, 32446 columns, 148774 nonzeros Variable types: 0 continuous, 32446 integer (32446 binary) Found heuristic solution: objective 192.0000000 Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 22877 3.0000704e+00 3.365216e+00 0.000000e+00 5s 25403 3.0000000e+00 0.000000e+00 0.000000e+00 7s Root relaxation: objective 3.000000e+00, 25403 iterations, 6.91 seconds Total elapsed time = 25.03s 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% - 26s Explored 0 nodes (66605 simplex iterations) in 26.93 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%