Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:44 2012

Optimize a model with 1086 rows, 67 columns and 2172 nonzeros
Presolve removed 757 rows and 0 columns
Presolve time: 0.02s
Presolved: 329 rows, 67 columns, 2004 nonzeros
Variable types: 0 continuous, 67 integer (67 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.133083e+01, 179 iterations, 0.01 seconds

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

     0     0   11.33083    0   62    6.00000   11.33083  88.8%     -    0s
H    0     0                       8.0000000   11.33083  41.6%     -    0s
     0     0   10.93813    0   62    8.00000   10.93813  36.7%     -    0s
     0     0   10.79413    0   65    8.00000   10.79413  34.9%     -    0s
     0     0   10.77851    0   64    8.00000   10.77851  34.7%     -    0s
     0     0   10.76880    0   65    8.00000   10.76880  34.6%     -    0s
     0     0   10.74433    0   62    8.00000   10.74433  34.3%     -    0s
     0     0   10.73015    0   64    8.00000   10.73015  34.1%     -    0s
     0     0   10.72758    0   64    8.00000   10.72758  34.1%     -    0s
     0     0   10.72476    0   65    8.00000   10.72476  34.1%     -    0s
     0     0   10.72476    0   65    8.00000   10.72476  34.1%     -    0s
     0     2   10.72328    0   65    8.00000   10.72328  34.0%     -    0s

Cutting planes:
  Clique: 37
  Zero half: 4

Explored 45 nodes (2324 simplex iterations) in 0.25 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%