Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:41 2012

Optimize a model with 2179 rows, 94 columns and 4358 nonzeros
Presolve removed 1535 rows and 0 columns
Presolve time: 0.06s
Presolved: 644 rows, 94 columns, 4276 nonzeros
Variable types: 0 continuous, 94 integer (94 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.377481e+01, 336 iterations, 0.01 seconds

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

     0     0   13.77481    0   93    6.00000   13.77481   130%     -    0s
H    0     0                       8.0000000   13.77481  72.2%     -    0s
     0     0   13.60927    0   94    8.00000   13.60927  70.1%     -    0s
     0     0   13.53925    0   94    8.00000   13.53925  69.2%     -    0s
H    0     0                       9.0000000   13.53925  50.4%     -    0s
     0     0   13.49649    0   92    9.00000   13.49649  50.0%     -    0s
     0     0   13.48141    0   93    9.00000   13.48141  49.8%     -    0s
     0     0   13.47087    0   93    9.00000   13.47087  49.7%     -    0s
     0     0   13.46201    0   94    9.00000   13.46201  49.6%     -    0s
     0     0   13.45443    0   94    9.00000   13.45443  49.5%     -    0s
     0     0   13.44794    0   93    9.00000   13.44794  49.4%     -    0s
     0     0   13.44719    0   93    9.00000   13.44719  49.4%     -    1s
     0     2   13.44289    0   93    9.00000   13.44289  49.4%     -    1s

Cutting planes:
  Gomory: 1
  Clique: 40
  Zero half: 3

Explored 123 nodes (7726 simplex iterations) in 1.56 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%