Gurobi 5.0.1 (linux64) logging started Fri Jan 18 05:20:32 2013

Optimize a model with 3000 rows, 121100 columns and 402800 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.53s
Presolved: 2900 rows, 121000 columns, 382700 nonzeros
Variable types: 120200 continuous, 800 integer (800 binary)

Root relaxation: objective 8.258498e+05, 6050 iterations, 0.54 seconds

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

     0     0 825849.833    0    3          - 825849.833     -      -    1s
     0     0 825851.221    0    3          - 825851.221     -      -    1s
     0     0 825851.416    0    3          - 825851.416     -      -    2s
     0     0 825851.416    0    3          - 825851.416     -      -    2s
     0     0 825853.163    0    3          - 825853.163     -      -    2s
     0     0 825863.189    0    5          - 825863.189     -      -    3s
     0     0 825863.189    0    5          - 825863.189     -      -    3s
     0     2 825865.485    0    5          - 825865.485     -      -    8s
*    7     4               7    826102.66657 825900.729  0.02%  79.0    9s

Cutting planes:
  Flow cover: 5

Explored 10 nodes (7722 simplex iterations) in 9.75 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.261026665679e+05, best bound 8.261026665679e+05, gap 0.0000%