Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:13 2012

Optimize a model with 2063 rows, 91 columns and 4126 nonzeros
Presolve removed 1464 rows and 0 columns
Presolve time: 0.05s
Presolved: 599 rows, 91 columns, 3991 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.340066e+01, 351 iterations, 0.01 seconds

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

     0     0   13.40066    0   86    7.00000   13.40066  91.4%     -    0s
H    0     0                       8.0000000   13.40066  67.5%     -    0s
     0     0   13.08114    0   89    8.00000   13.08114  63.5%     -    0s
     0     0   13.00322    0   88    8.00000   13.00322  62.5%     -    0s
H    0     0                       9.0000000   13.00322  44.5%     -    0s
     0     0   12.98014    0   88    9.00000   12.98014  44.2%     -    0s
     0     0   12.93066    0   89    9.00000   12.93066  43.7%     -    0s
     0     0   12.87112    0   90    9.00000   12.87112  43.0%     -    0s
     0     0   12.86914    0   90    9.00000   12.86914  43.0%     -    0s
     0     0   12.86868    0   90    9.00000   12.86868  43.0%     -    0s
     0     0   12.86862    0   90    9.00000   12.86862  43.0%     -    0s
     0     2   12.86751    0   90    9.00000   12.86751  43.0%     -    0s

Cutting planes:
  Clique: 59

Explored 81 nodes (5594 simplex iterations) in 0.97 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%