Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:24:26 2013

Optimize a model with 78408 rows, 77528 columns and 309848 nonzeros
Presolve removed 3554 rows and 0 columns
Presolve time: 0.52s
Presolved: 74854 rows, 77528 columns, 302740 nonzeros
Variable types: 77440 continuous, 88 integer (88 binary)

Root relaxation: objective 1.065791e+05, 17782 iterations, 4.76 seconds

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

     0     0 106579.090    0    4          - 106579.090     -      -    5s
H    0     0                    107964.00000 106579.090  1.28%     -    5s
H    0     0                    107161.00000 106579.090  0.54%     -    6s
     0     0 106581.238    0    6 107161.000 106581.238  0.54%     -    6s
     0     0 106581.238    0    6 107161.000 106581.238  0.54%     -    7s
     0     0 106581.238    0    4 107161.000 106581.238  0.54%     -   14s
     0     0 106581.542    0    6 107161.000 106581.542  0.54%     -   14s
     0     0 106581.542    0    6 107161.000 106581.542  0.54%     -   15s
     0     2 106585.763    0    6 107161.000 106585.763  0.54%     -   17s
H    6     6                    107067.25000 106678.978  0.36%  73.2   18s
H    8     7                    107057.00000 106678.978  0.35%   101   18s
*   15     8              13    106860.00000 106678.978  0.17%   114   19s
    27     6 106795.688    4    1 106860.000 106757.170  0.10%   116   20s
*   35     0               8    106846.00000 106846.000   0.0%   102   20s

Cutting planes:
  Gomory: 2
  Flow cover: 3

Explored 36 nodes (31580 simplex iterations) in 20.37 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.068460000000e+05, best bound 1.068460000000e+05, gap 0.0%