Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:12 2012

Optimize a model with 2061 rows, 91 columns and 4122 nonzeros
Presolve removed 1478 rows and 0 columns
Presolve time: 0.05s
Presolved: 583 rows, 91 columns, 3849 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.349005e+01, 305 iterations, 0.01 seconds

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

     0     0   13.49005    0   87    7.00000   13.49005  92.7%     -    0s
     0     0   13.12513    0   89    7.00000   13.12513  87.5%     -    0s
H    0     0                       8.0000000   13.12513  64.1%     -    0s
     0     0   13.04404    0   90    8.00000   13.04404  63.1%     -    0s
     0     0   12.98751    0   91    8.00000   12.98751  62.3%     -    0s
     0     0   12.97161    0   91    8.00000   12.97161  62.1%     -    0s
     0     0   12.96764    0   91    8.00000   12.96764  62.1%     -    0s
     0     0   12.96188    0   91    8.00000   12.96188  62.0%     -    0s
     0     0   12.94663    0   91    8.00000   12.94663  61.8%     -    0s
     0     0   12.94659    0   91    8.00000   12.94659  61.8%     -    0s
     0     0   12.94655    0   91    8.00000   12.94655  61.8%     -    0s
     0     2   12.94521    0   91    8.00000   12.94521  61.8%     -    0s
*  168    16               6       9.0000000   10.87265  20.8%  44.5    1s

Cutting planes:
  Clique: 62

Explored 189 nodes (8487 simplex iterations) in 1.18 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%