Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:35:52 2013

Optimize a model with 85652 rows, 84732 columns and 338652 nonzeros
Presolve removed 2706 rows and 0 columns
Presolve time: 0.60s
Presolved: 82946 rows, 84732 columns, 333240 nonzeros
Variable types: 84640 continuous, 92 integer (92 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21443    1.2313319e+05   1.322500e+03   0.000000e+00      5s
   22262    1.2328744e+05   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 1.232874e+05, 22262 iterations, 5.52 seconds

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

     0     0 123287.445    0    2          - 123287.445     -      -    6s
H    0     0                    125467.00000 123287.445  1.74%     -    6s
     0     0 123288.123    0    3 125467.000 123288.123  1.74%     -    7s
     0     0 123288.239    0    3 125467.000 123288.239  1.74%     -    7s
     0     0 123288.239    0    3 125467.000 123288.239  1.74%     -    8s
     0     2 123291.847    0    3 125467.000 123291.847  1.73%     -   11s
H    1     1                    123937.57198 123291.847  0.52%   0.0   11s
H    2     2                    123757.57143 123297.460  0.37%  41.5   11s
H    3     3                    123327.11111 123298.125  0.02%  33.7   11s
*    4     2               4    123315.00000 123305.968  0.01%  49.8   11s

Cutting planes:
  Flow cover: 8

Explored 5 nodes (22522 simplex iterations) in 11.71 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.233150000000e+05, best bound 1.233059682545e+05, gap 0.0073%