Gurobi 5.0.1 (linux64) logging started Mon Feb  4 16:30:46 2013

Optimize a model with 2324 rows, 576 columns and 7200 nonzeros
Presolve removed 636 rows and 310 columns
Presolve time: 0.02s
Presolved: 1688 rows, 266 columns, 5229 nonzeros
Variable types: 8 continuous, 258 integer (258 binary)
Found heuristic solution: objective 10426.000000

Root relaxation: objective 8.578965e+03, 762 iterations, 0.01 seconds

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

     0     0 8578.96499    0    5 10426.0000 8578.96499  17.7%     -    0s
H    0     0                    8590.0000000 8578.96499  0.13%     -    0s
     0     0 8587.40000    0    6 8590.00000 8587.40000  0.03%     -    0s
     0     0 8587.40000    0    4 8590.00000 8587.40000  0.03%     -    0s
     0     0 8587.67757    0   11 8590.00000 8587.67757  0.03%     -    0s

Cutting planes:
  Cover: 2
  Implied bound: 1
  MIR: 5
  GUB cover: 1

Explored 0 nodes (848 simplex iterations) in 0.06 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.590000000000e+03, best bound 8.590000000000e+03, gap 0.0%