Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:09:58 2012

Optimize a model with 459 rows, 552 columns and 1815 nonzeros
Presolve removed 5 rows and 71 columns
Presolve time: 0.02s
Presolved: 454 rows, 481 columns, 1706 nonzeros
Variable types: 0 continuous, 481 integer (481 binary)
Found heuristic solution: objective 23.0000000
Found heuristic solution: objective 2.0000000

Root relaxation: cutoff, 0 iterations, 0.00 seconds

Explored 0 nodes (0 simplex iterations) in 0.02 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%