Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:17:39 2013

Optimize a model with 1200 rows, 26600 columns and 54050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.15s
Presolved: 1100 rows, 26450 columns, 52900 nonzeros
Variable types: 26000 continuous, 450 integer (450 binary)

Root relaxation: objective 1.749223e+05, 2365 iterations, 0.08 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 174945.093    0    2          - 174945.093     -      -    0s
     0     0 174958.761    0    2          - 174958.761     -      -    0s
     0     0 174958.761    0    2          - 174958.761     -      -    0s
     0     0 174958.761    0    2          - 174958.761     -      -    0s
     0     0 174958.761    0    2          - 174958.761     -      -    0s
     0     0 174958.761    0    2          - 174958.761     -      -    0s
H    0     0                    177161.77914 174958.761  1.24%     -    0s
     0     2 174961.242    0    2 177161.779 174961.242  1.24%     -    0s
H   27    10                    176398.43376 175383.823  0.58%  20.2    1s
*   84    11              18    176347.48116 175394.583  0.54%  14.8    1s
*  175     0              42    176198.97748 176198.977   0.0%  24.3    2s

Cutting planes:
  Flow cover: 8

Explored 176 nodes (6932 simplex iterations) in 2.82 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%