Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:34:30 2013

Optimize a model with 85652 rows, 84732 columns and 338652 nonzeros
Presolve removed 3876 rows and 0 columns
Presolve time: 0.59s
Presolved: 81776 rows, 84732 columns, 330900 nonzeros
Variable types: 84640 continuous, 92 integer (92 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19683    1.3699282e+05   2.326845e+03   0.000000e+00      5s
   21083    1.3766411e+05   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 1.376641e+05, 21083 iterations, 5.76 seconds

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

     0     0 137664.114    0    4          - 137664.114     -      -    6s
H    0     0                    138728.00000 137664.114  0.77%     -    7s
H    0     0                    137974.00000 137664.114  0.22%     -    7s
     0     0 137669.096    0    5 137974.000 137669.096  0.22%     -    7s
     0     0 137669.096    0    4 137974.000 137669.096  0.22%     -   11s
     0     0 137669.096    0    5 137974.000 137669.096  0.22%     -   11s
     0     0 137669.501    0    5 137974.000 137669.501  0.22%     -   11s
     0     0 137669.501    0    5 137974.000 137669.501  0.22%     -   12s
     0     2 137684.691    0    5 137974.000 137684.691  0.21%     -   13s
H    5     4                    137960.00000 137802.596  0.11%   229   14s
H    7     5                    137887.00000 137802.596  0.06%   186   14s
*    8     5               5    137859.00000 137802.596  0.04%   180   14s

Cutting planes:
  Gomory: 1
  Flow cover: 3

Explored 11 nodes (30743 simplex iterations) in 14.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.378590000000e+05, best bound 1.378545316408e+05, gap 0.0032%