Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:44:01 2012

Optimize a model with 1291 rows, 73 columns and 2582 nonzeros
Presolve removed 908 rows and 0 columns
Presolve time: 0.03s
Presolved: 383 rows, 73 columns, 2330 nonzeros
Variable types: 0 continuous, 73 integer (73 binary)
Found heuristic solution: objective 8.0000000

Root relaxation: objective 1.169568e+01, 230 iterations, 0.01 seconds

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

     0     0   11.69568    0   68    8.00000   11.69568  46.2%     -    0s
     0     0   11.45021    0   68    8.00000   11.45021  43.1%     -    0s
     0     0   11.35651    0   71    8.00000   11.35651  42.0%     -    0s
     0     0   11.33508    0   70    8.00000   11.33508  41.7%     -    0s
     0     0   11.32160    0   70    8.00000   11.32160  41.5%     -    0s
     0     0   11.31927    0   70    8.00000   11.31927  41.5%     -    0s
     0     0   11.31004    0   70    8.00000   11.31004  41.4%     -    0s
     0     0   11.31003    0   70    8.00000   11.31003  41.4%     -    0s
     0     2   11.30896    0   70    8.00000   11.30896  41.4%     -    0s

Cutting planes:
  Gomory: 2
  Clique: 22
  Zero half: 11

Explored 65 nodes (3184 simplex iterations) in 0.34 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%