Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:11 2012

Optimize a model with 2086 rows, 91 columns and 4172 nonzeros
Presolve removed 1500 rows and 0 columns
Presolve time: 0.05s
Presolved: 586 rows, 91 columns, 3911 nonzeros
Variable types: 0 continuous, 91 integer (91 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.307264e+01, 370 iterations, 0.01 seconds

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

     0     0   13.07264    0   83    8.00000   13.07264  63.4%     -    0s
     0     0   12.74460    0   88    8.00000   12.74460  59.3%     -    0s
     0     0   12.65303    0   85    8.00000   12.65303  58.2%     -    0s
     0     0   12.49395    0   90    8.00000   12.49395  56.2%     -    0s
     0     0   12.44005    0   91    8.00000   12.44005  55.5%     -    0s
     0     0   12.42350    0   89    8.00000   12.42350  55.3%     -    0s
     0     0   12.42171    0   90    8.00000   12.42171  55.3%     -    0s
     0     0   12.42029    0   90    8.00000   12.42029  55.3%     -    0s
     0     0   12.41981    0   90    8.00000   12.41981  55.2%     -    0s
     0     2   12.41724    0   90    8.00000   12.41724  55.2%     -    0s
*  159     4               8       9.0000000   10.22594  13.6%  53.9    1s

Cutting planes:
  Clique: 79

Explored 164 nodes (9381 simplex iterations) in 1.10 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%