Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:43:56 2012

Optimize a model with 1259 rows, 71 columns and 2518 nonzeros
Presolve removed 878 rows and 0 columns
Presolve time: 0.03s
Presolved: 381 rows, 71 columns, 2368 nonzeros
Variable types: 0 continuous, 71 integer (71 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.131237e+01, 204 iterations, 0.00 seconds

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

     0     0   11.31237    0   66    6.00000   11.31237  88.5%     -    0s
H    0     0                       7.0000000   11.31237  61.6%     -    0s
H    0     0                       8.0000000   11.31237  41.4%     -    0s
H    0     0                       9.0000000   11.31237  25.7%     -    0s
     0     0   11.06789    0   68    9.00000   11.06789  23.0%     -    0s
     0     0   11.04558    0   69    9.00000   11.04558  22.7%     -    0s
     0     0   11.01797    0   68    9.00000   11.01797  22.4%     -    0s
     0     0   10.97513    0   69    9.00000   10.97513  21.9%     -    0s
     0     0   10.96426    0   69    9.00000   10.96426  21.8%     -    0s
     0     0   10.95978    0   70    9.00000   10.95978  21.8%     -    0s
     0     0   10.95601    0   70    9.00000   10.95601  21.7%     -    0s
     0     0   10.95600    0   70    9.00000   10.95600  21.7%     -    0s
     0     0   10.95594    0   70    9.00000   10.95594  21.7%     -    0s
     0     2   10.95534    0   70    9.00000   10.95534  21.7%     -    0s

Cutting planes:
  Clique: 30
  Zero half: 5

Explored 11 nodes (872 simplex iterations) in 0.29 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%