Gurobi 5.0.1 (linux64) logging started Fri Nov 16 18:01:30 2012 Optimize a model with 7992 rows, 12432 columns and 35964 nonzeros Presolve removed 29 rows and 3219 columns Presolve time: 0.15s Presolved: 7963 rows, 9213 columns, 32745 nonzeros Variable types: 0 continuous, 9213 integer (9213 binary) Found heuristic solution: objective 33.0000000 Found heuristic solution: objective 2.0000000 Root relaxation: cutoff, 6555 iterations, 0.16 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 (6555 simplex iterations) in 0.32 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%