Gurobi 5.0.1 (linux64) logging started Fri Jan 18 08:16:30 2013

Optimize a model with 1700 rows, 75650 columns and 651700 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 1.27s
Presolved: 1650 rows, 75600 columns, 601650 nonzeros
Variable types: 75100 continuous, 500 integer (500 binary)

Root relaxation: objective 1.959342e+05, 2699 iterations, 0.18 seconds

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

     0     0 195934.242    0    9          - 195934.242     -      -    1s
     0     0 195936.103    0    9          - 195936.103     -      -    2s
     0     0 195936.237    0   10          - 195936.237     -      -    2s
     0     0 195936.237    0   10          - 195936.237     -      -    3s
     0     0 195936.237    0   10          - 195936.237     -      -    3s
     0     0 195936.237    0   10          - 195936.237     -      -    4s
     0     0 195936.237    0   10          - 195936.237     -      -    4s
     0     0 195936.237    0   10          - 195936.237     -      -    5s
     0     0 195936.237    0   10          - 195936.237     -      -    5s
     0     2 195938.172    0   10          - 195938.172     -      -   12s
    20    22 197869.617   16    6          - 195961.734     -   68.9   15s
    91    93 198053.159   83    1          - 195961.734     -   20.5   20s
   170   172 198075.108  160    1          - 195961.734     -   12.3   25s
*  200    82             190    198079.69689 195961.734  1.07%  10.7   25s
*  249    24              46    196596.90814 195987.891  0.31%  11.8   27s
*  281    22              28    196588.54354 196156.910  0.22%  12.7   27s
*  293    12              10    196570.65000 196317.988  0.13%  13.3   28s
H  367    18                    196569.14379 196519.675  0.03%  13.5   29s
*  378    25              44    196568.16899 196519.675  0.02%  13.2   29s

Cutting planes:
  Flow cover: 9

Explored 384 nodes (8643 simplex iterations) in 29.95 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.965681689930e+05, best bound 1.965524679625e+05, gap 0.0080%