Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:37:13 2012

Optimize a model with 538 rows, 2450 columns and 3820 nonzeros
Presolve removed 2 rows and 2 columns
Presolve time: 0.04s
Presolved: 585 rows, 2448 columns, 6199 nonzeros
Variable types: 0 continuous, 2448 integer (2448 binary)
Found heuristic solution: objective 47.0000000
Found heuristic solution: objective 2.0000000

Root relaxation: cutoff, 0 iterations, 0.00 seconds

Explored 0 nodes (0 simplex iterations) in 0.04 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%