Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:48:10 2012

Optimize a model with 2448 rows, 99 columns and 4896 nonzeros
Presolve removed 1755 rows and 0 columns
Presolve time: 0.08s
Presolved: 693 rows, 99 columns, 4747 nonzeros
Variable types: 0 continuous, 99 integer (99 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.420952e+01, 366 iterations, 0.01 seconds

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

     0     0   14.20952    0   92    7.00000   14.20952   103%     -    0s
H    0     0                       8.0000000   14.20952  77.6%     -    0s
     0     0   13.88047    0   94    8.00000   13.88047  73.5%     -    0s
     0     0   13.66854    0   96    8.00000   13.66854  70.9%     -    0s
     0     0   13.59952    0   95    8.00000   13.59952  70.0%     -    0s
     0     0   13.58474    0   95    8.00000   13.58474  69.8%     -    0s
     0     0   13.57514    0   96    8.00000   13.57514  69.7%     -    0s
     0     0   13.55935    0   97    8.00000   13.55935  69.5%     -    0s
     0     0   13.55245    0   98    8.00000   13.55245  69.4%     -    0s
     0     0   13.55046    0   98    8.00000   13.55046  69.4%     -    0s
     0     0   13.54879    0   97    8.00000   13.54879  69.4%     -    0s
     0     0   13.54771    0   98    8.00000   13.54771  69.3%     -    0s
     0     0   13.54761    0   98    8.00000   13.54761  69.3%     -    1s
     0     0   13.54760    0   98    8.00000   13.54760  69.3%     -    1s
     0     2   13.54752    0   98    8.00000   13.54752  69.3%     -    1s
*   42    30               4       9.0000000   13.39995  48.9%  67.5    1s

Cutting planes:
  Clique: 79

Explored 192 nodes (11564 simplex iterations) in 1.81 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%