Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:38 2012

Optimize a model with 996 rows, 64 columns and 1992 nonzeros
Presolve removed 678 rows and 0 columns
Presolve time: 0.02s
Presolved: 318 rows, 64 columns, 1883 nonzeros
Variable types: 0 continuous, 64 integer (64 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.089384e+01, 142 iterations, 0.00 seconds

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

     0     0   10.89384    0   60    7.00000   10.89384  55.6%     -    0s
     0     0   10.49891    0   63    7.00000   10.49891  50.0%     -    0s
H    0     0                       8.0000000   10.49891  31.2%     -    0s
     0     0   10.45193    0   62    8.00000   10.45193  30.6%     -    0s
     0     0   10.40537    0   64    8.00000   10.40537  30.1%     -    0s
     0     0   10.39237    0   64    8.00000   10.39237  29.9%     -    0s
     0     0   10.38951    0   64    8.00000   10.38951  29.9%     -    0s
     0     0   10.37528    0   64    8.00000   10.37528  29.7%     -    0s
     0     0   10.37033    0   63    8.00000   10.37033  29.6%     -    0s
     0     0   10.36505    0   64    8.00000   10.36505  29.6%     -    0s
     0     0   10.36175    0   63    8.00000   10.36175  29.5%     -    0s
     0     0   10.36011    0   63    8.00000   10.36011  29.5%     -    0s
     0     0   10.35800    0   64    8.00000   10.35800  29.5%     -    0s
     0     2   10.35378    0   64    8.00000   10.35378  29.4%     -    0s

Cutting planes:
  Gomory: 1
  Clique: 26
  Zero half: 5

Explored 21 nodes (1290 simplex iterations) in 0.24 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%