/export/starexec/sandbox2/solver/bin/starexec_run_ttt2-1.17+nonreach /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files


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YES

Problem:
 strict:
  f(f(x)) -> x
 weak:
  f(x) -> g(f(g(f(x))))

Proof:
 String Reversal Processor:
  strict:
   f(f(x)) -> x
  weak:
   f(x) -> f(g(f(g(x))))
  Arctic Interpretation Processor:
   dimension: 2
   interpretation:
              [0  -&]  
    [g](x0) = [0  -&]x0,
    
              [0 0]  
    [f](x0) = [4 4]x0
   orientation:
              [4 4]          
    f(f(x)) = [8 8]x >= x = x
    
           [0 0]     [0  -&]                 
    f(x) = [4 4]x >= [4  -&]x = f(g(f(g(x))))
   problem:
    strict:
     
    weak:
     f(x) -> f(g(f(g(x))))
   Qed