Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:31:56 2012

Optimize a model with 583 rows, 521 columns and 1976 nonzeros
Presolve removed 0 rows and 15 columns
Presolve time: 0.00s
Presolved: 583 rows, 506 columns, 1961 nonzeros
Variable types: 0 continuous, 506 integer (505 binary)
Found heuristic solution: objective 130.0000000

Root relaxation: objective 0.000000e+00, 275 iterations, 0.00 seconds

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

     0     0    0.00000    0  214  130.00000    0.00000   100%     -    0s
H    0     0                      79.0000000    0.00000   100%     -    0s
H    0     0                      74.0000000    0.00000   100%     -    0s
     0     0    0.40751    0  216   74.00000    0.40751  99.4%     -    0s
H    0     0                      65.0000000    0.40751  99.4%     -    0s
H    0     0                      47.0000000    0.40751  99.1%     -    0s
     0     0    0.85436    0  218   47.00000    0.85436  98.2%     -    0s
     0     0    0.85584    0  220   47.00000    0.85584  98.2%     -    0s
     0     0    0.85584    0  220   47.00000    0.85584  98.2%     -    0s
     0     2    0.85670    0  220   47.00000    0.85670  98.2%     -    0s
*   65    59              40      32.0000000    1.00000  96.9%  28.0    0s
H   94    50                      23.0000000    1.00000  95.7%  35.3    0s
  2984  1310   20.48936   27  218   23.00000   11.64000  49.4%  27.7    5s
  6353  2548     cutoff   32        23.00000   13.18478  42.7%  26.1   10s
  9853  3566   16.29688   23  215   23.00000   14.12712  38.6%  25.3   15s
 13522  4417   18.42703   26  210   23.00000   14.80000  35.7%  24.9   20s
 17221  4989   20.23118   28  217   23.00000   15.32787  33.4%  25.5   25s
 20994  5202   20.71579   27  220   23.00000   15.81250  31.2%  25.5   30s
 24476  5246   20.15761   26  215   23.00000   16.19048  29.6%  26.4   35s
 28232  5127   20.52941   30  206   23.00000   16.64894  27.6%  26.5   40s
 31643  4867   21.96970   29  200   23.00000   17.00000  26.1%  27.0   45s
 34708  4600     cutoff   28        23.00000   17.31250  24.7%  27.4   50s
 37891  4257   20.20000   27  211   23.00000   17.78947  22.7%  27.7   55s
 41559  3815   21.27513   29  224   23.00000   18.30851  20.4%  28.0   60s
 46053  3134   20.36667   30  216   23.00000   19.06061  17.1%  27.7   65s
 51335  1898   21.27174   27  217   23.00000   20.00000  13.0%  26.9   70s

Explored 55385 nodes (1453064 simplex iterations) in 73.56 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.300000000000e+01, best bound 2.300000000000e+01, gap 0.0%