Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:25:45 2013

Optimize a model with 99099 rows, 98109 columns and 392139 nonzeros
Presolve removed 6989 rows and 0 columns
Presolve time: 0.72s
Presolved: 92110 rows, 98109 columns, 378161 nonzeros
Variable types: 98010 continuous, 99 integer (99 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20777    1.3764111e+05   3.171579e+03   0.000000e+00      5s
   22555    1.3828713e+05   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 1.382871e+05, 22555 iterations, 6.08 seconds

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

     0     0 138287.133    0    1          - 138287.133     -      -    7s
H    0     0                    139166.00000 138287.133  0.63%     -    7s
     0     0 138289.312    0    2 139166.000 138289.312  0.63%     -    7s
     0     0 138289.312    0    1 139166.000 138289.312  0.63%     -   15s
     0     0 138289.312    0    2 139166.000 138289.312  0.63%     -   15s
     0     2 138291.529    0    2 139166.000 138291.529  0.63%     -   18s
H    4     4                    138889.67442 138457.121  0.31%  70.8   18s
H    6     3                    138882.94737 138580.717  0.22%  82.2   18s
H    7     4                    138748.00000 138580.717  0.12%  79.7   18s
*    8     5               8    138664.00000 138580.717  0.06%  73.9   18s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 13 nodes (32045 simplex iterations) in 19.18 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.386640000000e+05, best bound 1.386640000000e+05, gap 0.0%