Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:45:02 2013

Optimize a model with 950 rows, 25850 columns and 52050 nonzeros
Presolve removed 100 rows and 150 columns
Presolve time: 0.25s
Presolved: 850 rows, 25700 columns, 51400 nonzeros
Variable types: 25500 continuous, 200 integer (200 binary)

Root relaxation: objective 2.246016e+05, 2239 iterations, 0.11 seconds

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

     0     0 224601.597    0    1          - 224601.597     -      -    0s
H    0     0                    227865.19678 224601.597  1.43%     -    0s
     0     0 224601.597    0    1 227865.197 224601.597  1.43%     -    0s
     0     0 224601.597    0    1 227865.197 224601.597  1.43%     -    0s
     0     0 224601.597    0    1 227865.197 224601.597  1.43%     -    0s
     0     0 224601.597    0    1 227865.197 224601.597  1.43%     -    0s
     0     0 224601.597    0    1 227865.197 224601.597  1.43%     -    0s
     0     2 224626.207    0    1 227865.197 224626.207  1.42%     -    0s
*    4     4               4    224847.24808 224785.855  0.03%  54.0    1s

Cutting planes:
  Flow cover: 3

Explored 8 nodes (2657 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.248472480793e+05, best bound 2.248472480793e+05, gap 0.0%