Gurobi 5.0.1 (linux64) logging started Fri Jan 18 02:46:17 2013

Optimize a model with 228 rows, 644 columns and 1682 nonzeros
Presolve removed 206 rows and 574 columns
Presolve time: 0.01s
Presolved: 22 rows, 70 columns, 140 nonzeros
Variable types: 54 continuous, 16 integer (16 binary)

Root relaxation: objective 5.784077e+03, 8 iterations, 0.00 seconds

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

     0     0 5784.07688    0    1          - 5784.07688     -      -    0s
H    0     0                    5812.3255371 5784.07688  0.49%     -    0s
     0     0 5806.18659    0    4 5812.32554 5806.18659  0.11%     -    0s
     0     0 5812.32544    0    2 5812.32554 5812.32544  0.00%     -    0s

Cutting planes:
  Cover: 2
  Implied bound: 1
  Flow cover: 5

Explored 0 nodes (32 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.812325537147e+03, best bound 5.812325437899e+03, gap 0.0000%