Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:01:22 2013

Optimize a model with 58596 rows, 57836 columns and 231116 nonzeros
Presolve removed 1790 rows and 0 columns
Presolve time: 0.35s
Presolved: 56806 rows, 57836 columns, 227536 nonzeros
Variable types: 57760 continuous, 76 integer (76 binary)

Root relaxation: objective 8.219088e+04, 13330 iterations, 3.09 seconds

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

     0     0 82190.8843    0    2          - 82190.8843     -      -    3s
H    0     0                    82918.000000 82190.8843  0.88%     -    3s
     0     0 82191.0723    0    3 82918.0000 82191.0723  0.88%     -    4s
     0     0 82191.0723    0    3 82918.0000 82191.0723  0.88%     -    4s
     0     2 82191.2887    0    3 82918.0000 82191.2887  0.88%     -    7s
    24    11 82761.3333    8    1 82918.0000 82438.2105  0.58%   201   10s
H   42     3                    82645.310345 82587.0864  0.07%   176   11s
*   43     3               6    82604.000000 82587.0864  0.02%   176   11s

Cutting planes:
  Gomory: 1
  Flow cover: 1

Explored 46 nodes (21001 simplex iterations) in 11.41 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.260400000000e+04, best bound 8.259763378466e+04, gap 0.0077%