Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:38:19 2012 Optimize a model with 11016 rows, 18632 columns and 51136 nonzeros Presolve removed 49 rows and 6664 columns Presolve time: 0.19s Presolved: 10967 rows, 11968 columns, 44472 nonzeros Variable types: 0 continuous, 11968 integer (11968 binary) Found heuristic solution: objective 35.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 8306 iterations, 0.22 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 cutoff 0 2.00000 1.00000 50.0% - 0s Explored 0 nodes (8306 simplex iterations) in 0.44 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%