Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:59 2012

Optimize a model with 1286 rows, 72 columns and 2572 nonzeros
Presolve removed 902 rows and 0 columns
Presolve time: 0.03s
Presolved: 384 rows, 72 columns, 2356 nonzeros
Variable types: 0 continuous, 72 integer (72 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.127919e+01, 224 iterations, 0.01 seconds

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

     0     0   11.27919    0   65    6.00000   11.27919  88.0%     -    0s
H    0     0                       7.0000000   11.27919  61.1%     -    0s
H    0     0                       8.0000000   11.27919  41.0%     -    0s
     0     0   10.94683    0   67    8.00000   10.94683  36.8%     -    0s
     0     0   10.89881    0   71    8.00000   10.89881  36.2%     -    0s
     0     0   10.86553    0   70    8.00000   10.86553  35.8%     -    0s
     0     0   10.84938    0   67    8.00000   10.84938  35.6%     -    0s
     0     0   10.84697    0   69    8.00000   10.84697  35.6%     -    0s
     0     0   10.84622    0   68    8.00000   10.84622  35.6%     -    0s
     0     0   10.84424    0   70    8.00000   10.84424  35.6%     -    0s
     0     0   10.84421    0   70    8.00000   10.84421  35.6%     -    0s
     0     2   10.83807    0   70    8.00000   10.83807  35.5%     -    0s

Cutting planes:
  Clique: 47
  Zero half: 5

Explored 35 nodes (2098 simplex iterations) in 0.32 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%