Gurobi 5.0.1 (linux64) logging started Wed Apr 24 01:32:04 2013

Optimize a model with 35518 rows, 34928 columns and 139358 nonzeros
Presolve removed 59 rows and 0 columns
Presolve time: 0.15s
Presolved: 35459 rows, 34928 columns, 139299 nonzeros
Variable types: 34869 continuous, 59 integer (59 binary)

Root relaxation: objective 5.059362e+04, 4547 iterations, 2.32 seconds

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

     0     0 50593.6197    0   49          - 50593.6197     -      -    2s
H    0     0                    77198.000000 50593.6197  34.5%     -    4s
     0     0 61812.8496    0   13 77198.0000 61812.8496  19.9%     -    7s
H    0     0                    72152.298463 61812.8496  14.3%     -    7s
H    0     0                    66963.000000 61812.8496  7.69%     -    8s
     0     0 63135.6764    0    7 66963.0000 63135.6764  5.72%     -    8s
H    0     0                    65991.000000 63135.6764  4.33%     -    8s
H    0     0                    63829.000000 63135.6764  1.09%     -    9s
     0     0 63137.7379    0    6 63829.0000 63137.7379  1.08%     -    9s
     0     2 63142.3815    0    6 63829.0000 63142.3815  1.08%     -   10s
H    8     8                    63705.519481 63335.5726  0.58%   161   10s
H   10     7                    63640.000000 63335.5726  0.48%   155   10s
H   11     8                    63612.081081 63335.5726  0.43%   149   10s
*   14     8              11    63588.000000 63335.5726  0.40%   128   10s
*   20     5               5    63459.000000 63369.0440  0.14%   119   11s

Cutting planes:
  Implied bound: 58

Explored 26 nodes (12162 simplex iterations) in 11.26 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 6.345900000000e+04, best bound 6.345900000000e+04, gap 0.0%