Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:47 2012

Optimize a model with 1171 rows, 68 columns and 2342 nonzeros
Presolve removed 837 rows and 0 columns
Presolve time: 0.02s
Presolved: 334 rows, 68 columns, 2043 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.093161e+01, 160 iterations, 0.00 seconds

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

     0     0   10.93161    0   63    5.00000   10.93161   119%     -    0s
H    0     0                       6.0000000   10.93161  82.2%     -    0s
     0     0   10.58330    0   66    6.00000   10.58330  76.4%     -    0s
H    0     0                       7.0000000   10.58330  51.2%     -    0s
     0     0   10.51926    0   68    7.00000   10.51926  50.3%     -    0s
     0     0   10.49949    0   67    7.00000   10.49949  50.0%     -    0s
     0     0   10.48845    0   68    7.00000   10.48845  49.8%     -    0s
H    0     0                       8.0000000   10.48845  31.1%     -    0s
     0     0   10.47288    0   68    8.00000   10.47288  30.9%     -    0s
     0     0   10.46038    0   68    8.00000   10.46038  30.8%     -    0s
     0     0   10.45721    0   68    8.00000   10.45721  30.7%     -    0s
     0     0   10.45719    0   68    8.00000   10.45719  30.7%     -    0s
     0     0   10.45709    0   68    8.00000   10.45709  30.7%     -    0s
     0     2   10.45696    0   68    8.00000   10.45696  30.7%     -    0s

Cutting planes:
  Clique: 31
  Zero half: 6

Explored 25 nodes (1391 simplex iterations) in 0.30 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%