Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:56:37 2012 Optimize a model with 10710 rows, 16002 columns and 47628 nonzeros Presolve removed 33 rows and 4158 columns Presolve time: 0.18s Presolved: 10677 rows, 11844 columns, 43470 nonzeros Variable types: 0 continuous, 11844 integer (11844 binary) Found heuristic solution: objective 41.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 10451 iterations, 0.63 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 (10451 simplex iterations) in 0.84 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%