Gurobi 5.0.1 (linux64) logging started Fri Jan 18 07:08:44 2013

Optimize a model with 68 rows, 2066 columns and 24148 nonzeros
Presolve removed 22 rows and 23 columns
Presolve time: 0.07s
Presolved: 46 rows, 2043 columns, 22104 nonzeros
Variable types: 2023 continuous, 20 integer (20 binary)

Root relaxation: objective 5.737611e+03, 16 iterations, 0.00 seconds

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

     0     0 5737.61109    0    3          - 5737.61109     -      -    0s
     0     0 5738.60131    0    3          - 5738.60131     -      -    0s
     0     0 5751.35249    0    3          - 5751.35249     -      -    0s
     0     0 5752.99648    0    3          - 5752.99648     -      -    0s
     0     0 5753.62911    0    3          - 5753.62911     -      -    0s
     0     0 5753.91280    0    3          - 5753.91280     -      -    0s
     0     0 5753.91280    0    3          - 5753.91280     -      -    0s
H    0     0                    5754.0024064 5753.91280  0.00%     -    0s

Cutting planes:
  Flow cover: 1

Explored 0 nodes (64 simplex iterations) in 0.20 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.754002406443e+03, best bound 5.753912797267e+03, gap 0.0016%