Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:40:20 2012

Optimize a model with 3485 rows, 6972 columns and 17013 nonzeros
Presolve removed 28 rows and 2160 columns
Presolve time: 0.11s
Presolved: 3457 rows, 4812 columns, 14771 nonzeros
Variable types: 0 continuous, 4812 integer (4812 binary)
Found heuristic solution: objective 83.0000000
Found heuristic solution: objective 2.0000000

Root relaxation: cutoff, 0 iterations, 0.00 seconds

Explored 0 nodes (0 simplex iterations) in 0.12 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%