Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:49 2012

Optimize a model with 1151 rows, 69 columns and 2302 nonzeros
Presolve removed 830 rows and 0 columns
Presolve time: 0.02s
Presolved: 321 rows, 69 columns, 1863 nonzeros
Variable types: 0 continuous, 69 integer (69 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.140915e+01, 194 iterations, 0.01 seconds

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

     0     0   11.40915    0   68    7.00000   11.40915  63.0%     -    0s
     0     0   11.18808    0   68    7.00000   11.18808  59.8%     -    0s
     0     0   11.14941    0   69    7.00000   11.14941  59.3%     -    0s
     0     0   11.12652    0   69    7.00000   11.12652  59.0%     -    0s
     0     0   11.11645    0   69    7.00000   11.11645  58.8%     -    0s
     0     0   11.11135    0   67    7.00000   11.11135  58.7%     -    0s
     0     0   11.10334    0   67    7.00000   11.10334  58.6%     -    0s
     0     0   11.10074    0   67    7.00000   11.10074  58.6%     -    0s
     0     2   11.09761    0   67    7.00000   11.09761  58.5%     -    0s
*   37    15               5       8.0000000   10.95108  36.9%  31.1    0s

Cutting planes:
  Gomory: 2
  Clique: 28
  Zero half: 10

Explored 62 nodes (2469 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%