Gurobi 5.0.1 (linux64) logging started Wed Apr 24 04:17:16 2013

Optimize a model with 69886 rows, 69056 columns and 275726 nonzeros
Presolve removed 83 rows and 0 columns
Presolve time: 0.32s
Presolved: 69803 rows, 69056 columns, 275643 nonzeros
Variable types: 68973 continuous, 83 integer (83 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8181    7.1680095e+04   5.955252e+04   0.000000e+00      5s
    9332    7.1912778e+04   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 7.191278e+04, 9332 iterations, 7.67 seconds

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

     0     0 71912.7781    0   56          - 71912.7781     -      -    8s
H    0     0                    128260.00000 71912.7781  43.9%     -   15s
     0     0 91963.1699    0   28 128260.000 91963.1699  28.3%     -   32s
H    0     0                    118180.00000 91963.1699  22.2%     -   35s
     0     0 98829.0840    0    5 118180.000 98829.0840  16.4%     -   39s
H    0     0                    113104.72767 98829.0840  12.6%     -   39s
H    0     0                    111594.00000 98829.0840  11.4%     -   39s
H    0     0                    111189.00000 98829.0840  11.1%     -   40s
     0     0 99373.6868    0    5 111189.000 99373.6868  10.6%     -   41s
     0     0 99743.1868    0    2 111189.000 99743.1868  10.3%     -   43s
H    0     0                    100555.95312 99743.1868  0.81%     -   43s
H    0     0                    100239.00000 99743.1868  0.49%     -   43s
     0     0 99743.1868    0   45 100239.000 99743.1868  0.49%     -   48s
     0     0 99743.1868    0   10 100239.000 99743.1868  0.49%     -   69s
     0     0 99743.1868    0    6 100239.000 99743.1868  0.49%     -   70s
     0     0 99743.1868    0    4 100239.000 99743.1868  0.49%     -   72s
     0     0 99743.1868    0    2 100239.000 99743.1868  0.49%     -   73s
H    0     0                    100060.00000 99743.1868  0.32%     -   74s
     0     2 99744.1250    0    2 100060.000 99744.1250  0.32%     -   74s
     3     5 99835.4590    2    1 100060.000 99779.6471  0.28%   168   75s
H    7     5                    100048.30000 99788.6000  0.26%  92.7   75s
H   27     5                    99972.000000 99863.2273  0.11%   127   78s
H   27     3                    99937.000000 99863.2273  0.07%   127   79s
*   36     3              17    99918.000000 99863.2273  0.05%   119   79s
    37     4 99866.5004    3    1 99918.0000 99866.5004  0.05%   121   80s

Cutting planes:
  Gomory: 4
  Implied bound: 58

Explored 65 nodes (44580 simplex iterations) in 81.36 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.991800000000e+04, best bound 9.991040450806e+04, gap 0.0076%