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

Optimize a model with 1172 rows, 68 columns and 2344 nonzeros
Presolve removed 848 rows and 0 columns
Presolve time: 0.03s
Presolved: 324 rows, 68 columns, 2071 nonzeros
Variable types: 0 continuous, 68 integer (68 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.081156e+01, 166 iterations, 0.00 seconds

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

     0     0   10.81156    0   61    7.00000   10.81156  54.5%     -    0s
     0     0   10.37978    0   65    7.00000   10.37978  48.3%     -    0s
H    0     0                       8.0000000   10.37978  29.7%     -    0s
     0     0   10.32153    0   64    8.00000   10.32153  29.0%     -    0s
     0     0   10.29191    0   67    8.00000   10.29191  28.6%     -    0s
     0     0   10.24461    0   65    8.00000   10.24461  28.1%     -    0s
     0     0   10.22864    0   65    8.00000   10.22864  27.9%     -    0s
     0     0   10.21393    0   66    8.00000   10.21393  27.7%     -    0s
     0     0   10.21151    0   66    8.00000   10.21151  27.6%     -    0s
     0     2   10.20930    0   66    8.00000   10.20930  27.6%     -    0s

Cutting planes:
  Clique: 34
  Zero half: 2

Explored 20 nodes (1282 simplex iterations) in 0.23 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%