Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:46:18 2012

Optimize a model with 2117 rows, 92 columns and 4234 nonzeros
Presolve removed 1504 rows and 0 columns
Presolve time: 0.06s
Presolved: 613 rows, 92 columns, 4081 nonzeros
Variable types: 0 continuous, 92 integer (92 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.339448e+01, 366 iterations, 0.01 seconds

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

     0     0   13.39448    0   89    6.00000   13.39448   123%     -    0s
H    0     0                       7.0000000   13.39448  91.3%     -    0s
H    0     0                       8.0000000   13.39448  67.4%     -    0s
     0     0   13.10875    0   89    8.00000   13.10875  63.9%     -    0s
     0     0   13.02168    0   90    8.00000   13.02168  62.8%     -    0s
     0     0   12.97264    0   90    8.00000   12.97264  62.2%     -    0s
     0     0   12.95838    0   90    8.00000   12.95838  62.0%     -    0s
     0     0   12.94500    0   90    8.00000   12.94500  61.8%     -    0s
     0     0   12.91670    0   91    8.00000   12.91670  61.5%     -    0s
     0     0   12.90277    0   91    8.00000   12.90277  61.3%     -    0s
     0     0   12.90246    0   91    8.00000   12.90246  61.3%     -    0s
     0     2   12.90228    0   91    8.00000   12.90228  61.3%     -    0s

Cutting planes:
  Clique: 53
  Zero half: 1

Explored 241 nodes (10837 simplex iterations) in 1.16 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%