Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:49 2013

Optimize a model with 574 rows, 2661 columns and 212699 nonzeros
Presolve removed 1 rows and 1 columns
Presolve time: 0.44s
Presolved: 573 rows, 2660 columns, 213070 nonzeros
Variable types: 0 continuous, 2660 integer (2660 binary)
Found heuristic solution: objective 1751.0000000

Root relaxation: objective 1.565000e+03, 306 iterations, 0.02 seconds

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

*    0     0               0    1565.0000000 1565.00000   0.0%     -    0s

Explored 0 nodes (306 simplex iterations) in 0.50 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.565000000000e+03, best bound 1.565000000000e+03, gap 0.0%