Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:00:37 2013

Optimize a model with 266 rows, 485 columns and 35440 nonzeros
Presolve removed 43 rows and 42 columns
Presolve time: 0.28s
Presolved: 223 rows, 443 columns, 32037 nonzeros
Variable types: 0 continuous, 443 integer (443 binary)
Found heuristic solution: objective 585.0000000

Root relaxation: objective 5.730000e+02, 77 iterations, 0.00 seconds

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

*    0     0               0     573.0000000  573.00000   0.0%     -    0s

Explored 0 nodes (77 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.730000000000e+02, best bound 5.730000000000e+02, gap 0.0%