Gurobi 5.0.1 (linux64) logging started Thu Jan 17 23:43:17 2013

Optimize a model with 1400 rows, 100500 columns and 201000 nonzeros
Presolve removed 100 rows and 100 columns
Presolve time: 0.19s
Presolved: 1600 rows, 100600 columns, 201300 nonzeros
Variable types: 100400 continuous, 200 integer (200 binary)

Root relaxation: objective 8.258498e+05, 6962 iterations, 0.47 seconds

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

     0     0 825849.833    0    2          - 825849.833     -      -    0s
H    0     0                    838163.23446 825849.833  1.47%     -    1s
H    0     0                    827466.93672 825849.833  0.20%     -    1s
     0     0 825858.298    0    2 827466.937 825858.298  0.19%     -    1s
     0     0 825861.328    0    2 827466.937 825861.328  0.19%     -    1s
     0     0 825869.694    0    2 827466.937 825869.694  0.19%     -    1s
     0     0 825873.981    0    2 827466.937 825873.981  0.19%     -    2s
     0     0 825873.981    0    2 827466.937 825873.981  0.19%     -    2s
     0     0 825873.981    0    2 827466.937 825873.981  0.19%     -    2s
     0     0 825873.981    0    2 827466.937 825873.981  0.19%     -    2s
     0     0 825873.981    0    2 827466.937 825873.981  0.19%     -    2s
     0     0 825873.981    0    2 827466.937 825873.981  0.19%     -    3s
     0     0 825873.981    0    2 827466.937 825873.981  0.19%     -    3s
     0     2 825888.833    0    2 827466.937 825888.833  0.19%     -    3s
*    4     2               3    826102.66657 826102.667   0.0%   146    4s

Cutting planes:
  Flow cover: 9

Explored 5 nodes (8756 simplex iterations) in 4.95 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%