Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:19:13 2013

Optimize a model with 1300 rows, 26150 columns and 53750 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.40s
Presolved: 1200 rows, 26050 columns, 53400 nonzeros
Variable types: 25600 continuous, 450 integer (450 binary)

Root relaxation: objective 1.749223e+05, 2089 iterations, 0.19 seconds

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

     0     0 174922.321    0    2          - 174922.321     -      -    0s
     0     0 174945.409    0    2          - 174945.409     -      -    0s
     0     0 174953.275    0    2          - 174953.275     -      -    0s
     0     0 174958.761    0    2          - 174958.761     -      -    1s
     0     0 174958.761    0    2          - 174958.761     -      -    1s
     0     0 174958.761    0    2          - 174958.761     -      -    1s
     0     0 174958.761    0    2          - 174958.761     -      -    1s
H    0     0                    177161.77914 174958.761  1.24%     -    1s
     0     2 174961.242    0    2 177161.779 174961.242  1.24%     -    1s
H   27    12                    176398.43376 175072.609  0.75%  23.3    2s
*  104    14              19    176366.32249 175381.792  0.56%  23.6    4s
*  107    13              17    176347.48116 175412.301  0.53%  23.8    4s
   148    27 176304.759   12    1 176347.481 175718.797  0.36%  24.2    5s
*  200     8              36    176311.24571 176198.977  0.06%  26.9    5s
*  203     0              42    176198.97748 176198.977   0.0%  26.7    5s

Cutting planes:
  Flow cover: 7

Explored 204 nodes (7769 simplex iterations) in 5.88 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.761989774784e+05, best bound 1.761989774784e+05, gap 0.0%