Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:44:54 2013

Optimize a model with 950 rows, 25850 columns and 52050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.13s
Presolved: 850 rows, 25700 columns, 51400 nonzeros
Variable types: 25500 continuous, 200 integer (200 binary)

Root relaxation: objective 2.198499e+05, 2485 iterations, 0.07 seconds

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

     0     0 219849.939    0    2          - 219849.939     -      -    0s
H    0     0                    234133.82037 219849.939  6.10%     -    0s
     0     0 219872.711    0    2 234133.820 219872.711  6.09%     -    0s
     0     0 219883.020    0    2 234133.820 219883.020  6.09%     -    0s
     0     0 219886.158    0    2 234133.820 219886.158  6.09%     -    0s
     0     0 219895.061    0    2 234133.820 219895.061  6.08%     -    0s
     0     0 219897.427    0    2 234133.820 219897.427  6.08%     -    0s
     0     0 219899.313    0    2 234133.820 219899.313  6.08%     -    0s
     0     0 219900.451    0    2 234133.820 219900.451  6.08%     -    0s
     0     0 219900.451    0    2 234133.820 219900.451  6.08%     -    0s
     0     0 219900.451    0    2 234133.820 219900.451  6.08%     -    0s
     0     0 219900.451    0    2 234133.820 219900.451  6.08%     -    0s
     0     2 219909.558    0    2 234133.820 219909.558  6.08%     -    0s
H   27    16                    221800.08212 220611.861  0.54%  31.1    1s

Cutting planes:
  Flow cover: 8

Explored 72 nodes (6392 simplex iterations) in 2.15 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.218000821189e+05, best bound 2.217918992446e+05, gap 0.0037%