Gurobi 5.0.1 (linux64) logging started Fri Jan 18 06:04:01 2013

Optimize a model with 25800 rows, 75150 columns and 225250 nonzeros
Presolve removed 50 rows and 50 columns
Presolve time: 0.89s
Presolved: 25750 rows, 75100 columns, 200200 nonzeros
Variable types: 50100 continuous, 25000 integer (25000 binary)

Root relaxation: objective 1.749223e+05, 3300 iterations, 0.21 seconds

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

     0     0 174922.321    0    4          - 174922.321     -      -    2s
     0     0 174957.609    0    5          - 174957.609     -      -    2s
     0     0 174960.074    0    2          - 174960.074     -      -    3s
     0     0 174960.074    0    2          - 174960.074     -      -    3s
     0     0 174960.708    0    2          - 174960.708     -      -    3s
     0     0 174963.153    0    2          - 174963.153     -      -    4s
     0     0 174963.153    0    2          - 174963.153     -      -    4s
     0     0 174963.153    0    2          - 174963.153     -      -    4s
     0     0 174963.559    0    2          - 174963.559     -      -    5s
     0     0 174963.559    0    2          - 174963.559     -      -    5s
     0     2 174963.559    0    2          - 174963.559     -      -    9s
     2     4 175061.091    1    2          - 175061.091     -    334   10s
*   23    11              12    176767.92131 175447.699  0.75%  82.9   11s
    87     9 175795.304   74    2 176767.921 175447.699  0.75%  26.8   15s
   183    11 175869.276  168    2 176767.921 175447.699  0.75%  18.0   20s
   275    11 175927.260  260    2 176767.921 175447.699  0.75%  14.3   25s
   368    11 175993.664  353    2 176767.921 175447.699  0.75%  12.6   30s
   460    11 176071.091  445    2 176767.921 175447.699  0.75%  11.7   35s
   555    11 176163.069  540    6 176767.921 175447.699  0.75%  11.1   40s
   650    15 176245.733  633    4 176767.921 175447.699  0.75%  10.9   45s
H  702    16                    176666.69302 175447.699  0.69%  10.7   51s
H  729    12                    176628.70304 175447.699  0.67%  10.6   56s
   802    13 176364.404  784    4 176628.703 175447.699  0.67%  10.7   60s
   900    13 176371.825  882    2 176628.703 175447.699  0.67%   9.8   65s
  1006    13 176380.636  988    2 176628.703 175447.699  0.67%   9.1   70s
  1110    13 176390.606 1092    2 176628.703 175447.699  0.67%   8.5   75s
  1206    13 176401.371 1188    4 176628.703 175447.699  0.67%   8.1   80s
H 1291     8                    176301.41548 175447.699  0.48%   7.7   87s
  1344     4 176222.168   19    2 176301.415 176142.384  0.09%   8.3   90s
  1462     6 176226.744  134    2 176301.415 176142.384  0.09%   7.8   95s
  1556     6 176227.975  227    2 176301.415 176142.384  0.09%   7.4  100s
  1632     6 176229.008  301    2 176301.415 176142.384  0.09%   7.2  105s
  1710     6 176229.819  378    2 176301.415 176142.384  0.09%   6.9  110s
  1769     6 176230.308  436    2 176301.415 176142.384  0.09%   6.8  115s
* 1816     6             478    176230.64013 176142.384  0.05%   6.8  118s
* 1843     4             142    176210.47145 176209.646  0.00%   6.7  119s

Cutting planes:
  Gomory: 1
  Implied bound: 44
  Flow cover: 1

Explored 1844 nodes (18078 simplex iterations) in 119.42 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 1.762104714471e+05, best bound 1.762096464263e+05, gap 0.0005%