Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:22 2013

Optimize a model with 52 rows, 158 columns and 924 nonzeros
Presolve removed 22 rows and 27 columns
Presolve time: 0.00s
Presolved: 30 rows, 131 columns, 772 nonzeros
Variable types: 119 continuous, 12 integer (12 binary)

Root relaxation: objective 5.281733e+03, 12 iterations, 0.00 seconds

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

     0     0 5281.73269    0    3          - 5281.73269     -      -    0s
     0     0 5285.38289    0    4          - 5285.38289     -      -    0s
     0     0 5285.43817    0    4          - 5285.43817     -      -    0s
     0     0 5295.66696    0    3          - 5295.66696     -      -    0s
     0     0 5296.01094    0    3          - 5296.01094     -      -    0s
     0     0 5296.01094    0    3          - 5296.01094     -      -    0s
H    0     0                    5296.3077927 5296.01094  0.01%     -    0s

Cutting planes:
  Flow cover: 1

Explored 0 nodes (39 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.296307792671e+03, best bound 5.296010936082e+03, gap 0.0056%