Gurobi 5.0.1 (linux64) logging started Fri Nov 16 16:55:27 2012 Optimize a model with 11440 rows, 6480 columns and 40480 nonzeros Presolve removed 881 rows and 80 columns Presolve time: 0.21s Presolved: 10559 rows, 6400 columns, 38240 nonzeros Variable types: 0 continuous, 6400 integer (6400 binary) Found heuristic solution: objective 50.0000000 Root relaxation: objective 3.000000e+00, 8885 iterations, 1.05 seconds 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% - 2s Explored 0 nodes (13409 simplex iterations) in 2.19 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%