Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:52 2013

Optimize a model with 479 rows, 2661 columns and 151852 nonzeros
Presolve removed 6 rows and 6 columns
Presolve time: 0.44s
Presolved: 473 rows, 2655 columns, 151534 nonzeros
Variable types: 0 continuous, 2655 integer (2655 binary)
Found heuristic solution: objective 2084.0000000
Found heuristic solution: objective 1748.0000000

Root relaxation: objective 1.522000e+03, 379 iterations, 0.03 seconds

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

*    0     0               0    1522.0000000 1522.00000   0.0%     -    0s

Explored 0 nodes (379 simplex iterations) in 0.49 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.522000000000e+03, best bound 1.522000000000e+03, gap 0.0%