Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:01:00 2013

Optimize a model with 92 rows, 64 columns and 288 nonzeros
Presolve removed 53 rows and 37 columns
Presolve time: 0.00s
Presolved: 39 rows, 27 columns, 132 nonzeros
Variable types: 3 continuous, 24 integer (24 binary)
Found heuristic solution: objective 638.0000000
Found heuristic solution: objective 594.0000000

Root relaxation: objective 5.689583e+02, 5 iterations, 0.00 seconds

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

     0     0  568.95833    0    3  594.00000  568.95833  4.22%     -    0s
     0     0  572.07500    0    4  594.00000  572.07500  3.69%     -    0s
H    0     0                     580.0000000  572.07500  1.37%     -    0s
H    0     0                     576.0000000  572.07500  0.68%     -    0s
     0     0  572.26416    0    8  576.00000  572.26416  0.65%     -    0s
     0     0     cutoff    0       576.00000  575.00058  0.17%     -    0s

Cutting planes:
  Cover: 2
  MIR: 8
  GUB cover: 2

Explored 0 nodes (31 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.760000000000e+02, best bound 5.760000000000e+02, gap 0.0%