Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:39:22 2012 Optimize a model with 2584 rows, 5852 columns and 13300 nonzeros Presolve removed 29 rows and 2204 columns Presolve time: 0.07s Presolved: 2555 rows, 3648 columns, 11096 nonzeros Variable types: 0 continuous, 3648 integer (3648 binary) Found heuristic solution: objective 15.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 2211 iterations, 0.03 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 (2211 simplex iterations) in 0.11 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%