Gurobi 5.0.1 (linux64) logging started Fri Jan 18 00:58:30 2013

Optimize a model with 1700 rows, 28100 columns and 58050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.24s
Presolved: 1600 rows, 27950 columns, 55900 nonzeros
Variable types: 27000 continuous, 950 integer (950 binary)

Root relaxation: objective 1.749223e+05, 2817 iterations, 0.13 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 174944.900    0    2          - 174944.900     -      -    0s
     0     0 174958.297    0    2          - 174958.297     -      -    0s
     0     0 174958.505    0    2          - 174958.505     -      -    0s
     0     0 174958.505    0    2          - 174958.505     -      -    0s
     0     0 174958.505    0    2          - 174958.505     -      -    0s
     0     0 174959.188    0    2          - 174959.188     -      -    0s
     0     0 174959.188    0    2          - 174959.188     -      -    1s
H    0     0                    178511.00724 174959.188  1.99%     -    1s
     0     2 174959.986    0    2 178511.007 174959.986  1.99%     -    1s
H   54    33                    177163.37382 175069.659  1.18%  16.3    2s
*  144    30             143    176265.96883 175069.659  0.68%  13.2    4s
   192    34 176260.468   12    1 176265.969 175421.377  0.48%  20.4    5s
*  260    29              90    176230.44114 175739.440  0.28%  24.1    5s
*  339     0              97    176208.61401 176208.614   0.0%  27.5    6s

Cutting planes:
  Flow cover: 10

Explored 340 nodes (12372 simplex iterations) in 6.92 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.762086140087e+05, best bound 1.762086140087e+05, gap 0.0%