Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:05 2012

Optimize a model with 2007 rows, 91 columns and 4014 nonzeros
Presolve removed 1436 rows and 0 columns
Presolve time: 0.06s
Presolved: 571 rows, 91 columns, 3733 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.342049e+01, 377 iterations, 0.01 seconds

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

     0     0   13.42049    0   83    5.00000   13.42049   168%     -    0s
H    0     0                       7.0000000   13.42049  91.7%     -    0s
H    0     0                       8.0000000   13.42049  67.8%     -    0s
     0     0   13.07389    0   87    8.00000   13.07389  63.4%     -    0s
     0     0   13.05444    0   85    8.00000   13.05444  63.2%     -    0s
     0     0   13.00913    0   89    8.00000   13.00913  62.6%     -    0s
     0     0   12.93702    0   89    8.00000   12.93702  61.7%     -    0s
     0     0   12.91997    0   90    8.00000   12.91997  61.5%     -    0s
     0     0   12.91896    0   89    8.00000   12.91896  61.5%     -    0s
     0     0   12.91858    0   89    8.00000   12.91858  61.5%     -    0s
     0     0   12.91856    0   89    8.00000   12.91856  61.5%     -    0s
H    0     0                       9.0000000   12.91856  43.5%     -    0s
     0     2   12.91792    0   89    9.00000   12.91792  43.5%     -    0s

Cutting planes:
  Clique: 74

Explored 83 nodes (5884 simplex iterations) in 1.02 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%