Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:54:17 2013

Optimize a model with 87513 rows, 86583 columns and 346053 nonzeros
Presolve removed 6458 rows and 0 columns
Presolve time: 0.61s
Presolved: 81055 rows, 86583 columns, 333137 nonzeros
Variable types: 86490 continuous, 93 integer (93 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21368    1.3250075e+05   6.947258e+03   0.000000e+00      5s
   25722    1.3571721e+05   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 1.357172e+05, 25722 iterations, 6.85 seconds

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

     0     0 135717.214    0    4          - 135717.214     -      -    7s
H    0     0                    140994.00000 135717.214  3.74%     -    8s
     0     0 135720.967    0    7 140994.000 135720.967  3.74%     -    8s
H    0     0                    137387.39437 135720.967  1.21%     -   12s
     0     2 135721.174    0    7 137387.394 135721.174  1.21%     -   14s
     1     3 135742.993    1    5 137387.394 135742.993  1.20%   265   15s
H    7     7                    136986.00000 135748.677  0.90%   148   16s
H   14    11                    136817.00000 135748.677  0.78%   124   17s
H   16    13                    136561.00000 135748.677  0.59%   117   17s
H   22    10                    136183.00000 135748.677  0.32%   114   18s
*   23    10              23    136070.00000 135748.677  0.24%   126   19s
    28    12 135959.929    5    2 136070.000 135825.923  0.18%   150   20s

Cutting planes:
  Gomory: 3
  Flow cover: 3

Explored 49 nodes (32793 simplex iterations) in 21.53 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.360700000000e+05, best bound 1.360609980238e+05, gap 0.0066%