Gurobi 5.0.1 (linux64) logging started Fri Jan 18 03:14:15 2013

Optimize a model with 1400 rows, 30500 columns and 96250 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.13s
Presolved: 1350 rows, 30450 columns, 91200 nonzeros
Variable types: 30100 continuous, 350 integer (350 binary)

Root relaxation: objective 2.198499e+05, 2386 iterations, 0.08 seconds

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

     0     0 219849.939    0    6          - 219849.939     -      -    0s
     0     0 219858.022    0    6          - 219858.022     -      -    0s
     0     0 219858.525    0    8          - 219858.525     -      -    0s
     0     0 219858.909    0    8          - 219858.909     -      -    0s
     0     0 219862.805    0    8          - 219862.805     -      -    0s
     0     0 219862.822    0    8          - 219862.822     -      -    0s
     0     0 219862.833    0    8          - 219862.833     -      -    0s
     0     0 219862.896    0    8          - 219862.896     -      -    0s
     0     0 219863.579    0    8          - 219863.579     -      -    0s
     0     0 219863.579    0    8          - 219863.579     -      -    1s
     0     2 219869.410    0    8          - 219869.410     -      -    3s
    51    53 222676.123   49    3          - 220220.935     -   26.5    5s
*   61    41              59    222680.83956 220220.935  1.10%  22.9    5s
*   76    42              15    222024.82244 220306.336  0.77%  24.6    5s
*  222     9              21    221990.67135 221903.479  0.04%  41.5    8s

Cutting planes:
  Flow cover: 8

Explored 229 nodes (12553 simplex iterations) in 8.39 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.219906713538e+05, best bound 2.219703889480e+05, gap 0.0091%