Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:47 2012

Optimize a model with 101 rows, 82 columns and 332 nonzeros
Presolve time: 0.00s
Presolved: 101 rows, 82 columns, 332 nonzeros
Variable types: 0 continuous, 82 integer (82 binary)
Found heuristic solution: objective 20.0000000

Root relaxation: objective 0.000000e+00, 43 iterations, 0.00 seconds

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

     0     0    0.00000    0   31   20.00000    0.00000   100%     -    0s
H    0     0                      16.0000000    0.00000   100%     -    0s
     0     0    0.44031    0   33   16.00000    0.44031  97.2%     -    0s
H    0     0                      15.0000000    0.44031  97.1%     -    0s
     0     0    0.89886    0   36   15.00000    0.89886  94.0%     -    0s
     0     0    0.90937    0   36   15.00000    0.90937  93.9%     -    0s
     0     0    0.90937    0   36   15.00000    0.90937  93.9%     -    0s
H    0     0                      11.0000000    0.90937  91.7%     -    0s
     0     2    1.06934    0   36   11.00000    1.06934  90.3%     -    0s
*   12    12               7       9.0000000    3.09365  65.6%  16.8    0s

Cutting planes:
  Gomory: 4
  Zero half: 3

Explored 51 nodes (936 simplex iterations) in 0.05 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%