Gurobi 5.0.1 (linux64) logging started Sun Nov 18 08:19:20 2012

Optimize a model with 591 rows, 531 columns and 2006 nonzeros
Presolve removed 0 rows and 12 columns
Presolve time: 0.00s
Presolved: 591 rows, 519 columns, 1994 nonzeros
Variable types: 0 continuous, 519 integer (518 binary)
Found heuristic solution: objective 135.0000000

Root relaxation: objective 0.000000e+00, 281 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  219  135.00000    0.00000   100%     -    0s
H    0     0                      88.0000000    0.00000   100%     -    0s
H    0     0                      60.0000000    0.00000   100%     -    0s
     0     0    0.38804    0  221   60.00000    0.38804  99.4%     -    0s
H    0     0                      53.0000000    0.38804  99.3%     -    0s
     0     0    0.82950    0  223   53.00000    0.82950  98.4%     -    0s
H    0     0                      46.0000000    0.82950  98.2%     -    0s
     0     0    0.83030    0  225   46.00000    0.83030  98.2%     -    0s
     0     0    0.83030    0  224   46.00000    0.83030  98.2%     -    0s
     0     2    0.83236    0  224   46.00000    0.83236  98.2%     -    0s
H   71    62                      28.0000000    1.00000  96.4%  34.2    0s
H  126    75                      26.0000000    1.00000  96.2%  31.5    0s
*  262   170              25      24.0000000    1.01229  95.8%  40.1    0s
  2546   603   22.83607   26  229   24.00000   15.06135  37.2%  30.1    5s
  5675   861   19.26455   26  221   24.00000   18.15534  24.4%  26.0   10s
  8896   611   21.93467   22  238   24.00000   19.77778  17.6%  24.8   15s

Explored 11549 nodes (277464 simplex iterations) in 18.47 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 2.400000000000e+01, best bound 2.400000000000e+01, gap 0.0%