Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:10 2012

Optimize a model with 2039 rows, 91 columns and 4078 nonzeros
Presolve removed 1434 rows and 0 columns
Presolve time: 0.05s
Presolved: 605 rows, 91 columns, 3930 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.350177e+01, 367 iterations, 0.01 seconds

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

     0     0   13.50177    0   88    7.00000   13.50177  92.9%     -    0s
H    0     0                       8.0000000   13.50177  68.8%     -    0s
     0     0   13.13826    0   90    8.00000   13.13826  64.2%     -    0s
     0     0   13.07914    0   90    8.00000   13.07914  63.5%     -    0s
     0     0   13.05280    0   90    8.00000   13.05280  63.2%     -    0s
     0     0   13.03542    0   90    8.00000   13.03542  62.9%     -    0s
     0     0   13.03180    0   90    8.00000   13.03180  62.9%     -    0s
     0     0   13.03149    0   90    8.00000   13.03149  62.9%     -    0s
     0     0   13.03142    0   90    8.00000   13.03142  62.9%     -    0s
     0     2   13.03132    0   90    8.00000   13.03132  62.9%     -    0s
*  104    30               9       9.0000000   12.22067  35.8%  52.4    0s

Cutting planes:
  Clique: 47
  Zero half: 4

Explored 137 nodes (7842 simplex iterations) in 0.90 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%