Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:36:36 2012

Optimize a model with 71 rows, 600 columns and 694 nonzeros
Presolve removed 25 rows and 531 columns
Presolve time: 0.00s
Presolved: 46 rows, 69 columns, 158 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 20.0000000
Found heuristic solution: objective 2.0000000

Root relaxation: cutoff, 0 iterations, 0.00 seconds

Explored 0 nodes (0 simplex iterations) in 0.00 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%