Gurobi 5.0.1 (linux64) logging started Fri Jan 18 04:54:25 2013

Optimize a model with 3000 rows, 152200 columns and 641700 nonzeros
Presolve removed 100 rows and 11300 columns
Presolve time: 0.98s
Presolved: 2900 rows, 140900 columns, 601700 nonzeros
Variable types: 140100 continuous, 800 integer (800 binary)

Root relaxation: objective 8.258498e+05, 6732 iterations, 0.72 seconds

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

     0     0 825849.833    0    5          - 825849.833     -      -    2s
     0     0 825851.221    0    5          - 825851.221     -      -    2s
     0     0 825851.318    0    5          - 825851.318     -      -    3s
     0     0 825851.416    0    5          - 825851.416     -      -    3s
     0     0 825853.163    0    5          - 825853.163     -      -    4s
     0     0 825853.163    0    5          - 825853.163     -      -    5s
     0     2 825854.139    0    5          - 825854.139     -      -   13s
     3     5 825907.864    3    7          - 825907.864     -    207   15s
*   18    13              18    826102.66657 825907.864  0.02%  63.8   18s

Cutting planes:
  Flow cover: 4

Explored 30 nodes (8973 simplex iterations) in 18.71 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.261026665679e+05, best bound 8.260216502649e+05, gap 0.0098%