Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:45 2012

Optimize a model with 1126 rows, 68 columns and 2252 nonzeros
Presolve removed 784 rows and 0 columns
Presolve time: 0.02s
Presolved: 342 rows, 68 columns, 2068 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.110033e+01, 212 iterations, 0.00 seconds

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

     0     0   11.10033    0   63    6.00000   11.10033  85.0%     -    0s
H    0     0                       7.0000000   11.10033  58.6%     -    0s
     0     0   10.89194    0   66    7.00000   10.89194  55.6%     -    0s
     0     0   10.83878    0   66    7.00000   10.83878  54.8%     -    0s
     0     0   10.80112    0   68    7.00000   10.80112  54.3%     -    0s
     0     0   10.77137    0   68    7.00000   10.77137  53.9%     -    0s
H    0     0                       8.0000000   10.77137  34.6%     -    0s
     0     0   10.76556    0   68    8.00000   10.76556  34.6%     -    0s
     0     0   10.76514    0   68    8.00000   10.76514  34.6%     -    0s
     0     0   10.76513    0   68    8.00000   10.76513  34.6%     -    0s
     0     2   10.76490    0   68    8.00000   10.76490  34.6%     -    0s

Cutting planes:
  Clique: 28
  Zero half: 5

Explored 30 nodes (1892 simplex iterations) in 0.26 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%