Gurobi 5.0.1 (linux64) logging started Wed Apr 24 11:15:26 2013

Optimize a model with 170430 rows, 169130 columns and 676130 nonzeros
Presolve removed 8055 rows and 0 columns
Presolve time: 1.60s
Presolved: 162375 rows, 169130 columns, 660020 nonzeros
Variable types: 169000 continuous, 130 integer (130 binary)

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19459    1.2456184e+05   2.066928e+04   0.000000e+00      5s
   27895    1.7289379e+05   2.130377e+04   0.000000e+00     10s
   35221    1.9186806e+05   4.103041e+03   0.000000e+00     15s
   37520    1.9307378e+05   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 1.930738e+05, 37520 iterations, 18.03 seconds
Total elapsed time = 20.15s

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

     0     0 193073.781    0    3          - 193073.781     -      -   20s
H    0     0                    199554.00000 193073.781  3.25%     -   21s
     0     0 193074.885    0    4 199554.000 193074.885  3.25%     -   23s
H    0     0                    194675.69167 193074.885  0.82%     -   29s
H    0     0                    194313.31902 193074.885  0.64%     -   29s
H    0     0                    194135.00000 193074.885  0.55%     -   29s
     0     0 193074.885    0    3 194135.000 193074.885  0.55%     -   43s
     0     0 193074.935    0    4 194135.000 193074.935  0.55%     -   43s
     0     0 193074.935    0    4 194135.000 193074.935  0.55%     -   44s
     0     2 193078.220    0    4 194135.000 193078.220  0.54%     -   49s
     2     5 193226.609    2    2 194135.000 193136.171  0.51%   533   50s
    12    12 193658.500   10    1 194135.000 193298.783  0.43%   365   55s
H   13    11                    193785.00000 193298.783  0.25%   337   55s
H   14    11                    193773.00000 193298.783  0.24%   322   55s
*   15    11              13    193739.00000 193298.783  0.23%   304   55s
*   32    16              15    193726.00000 193362.131  0.19%   238   58s
*   37     0               3    193374.00000 193374.000   0.0%   238   59s

Cutting planes:
  Gomory: 1
  Flow cover: 2

Explored 38 nodes (61805 simplex iterations) in 59.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.933740000000e+05, best bound 1.933740000000e+05, gap 0.0%