Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:40:20 2013

Optimize a model with 128 rows, 344 columns and 882 nonzeros
Presolve removed 116 rows and 307 columns
Presolve time: 0.00s
Presolved: 12 rows, 37 columns, 74 nonzeros
Variable types: 31 continuous, 6 integer (6 binary)

Root relaxation: objective 5.281733e+03, 5 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    1          - 5281.73269     -      -    0s
H    0     0                    5296.3077927 5281.73269  0.28%     -    0s
     0     0 5296.29650    0    2 5296.30779 5296.29650  0.00%     -    0s

Cutting planes:
  Cover: 1
  Flow cover: 1

Explored 0 nodes (11 simplex iterations) in 0.00 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 5.296307792671e+03, best bound 5.296296501740e+03, gap 0.0002%