/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:
  a(a(x1)) -> x1
 weak:
  a(a(x1)) -> b(a(a(a(b(x1)))))

Proof:
 Arctic Interpretation Processor:
  dimension: 2
  interpretation:
             [0  -&]  
   [b](x0) = [0  -&]x0,
   
             [0  0 ]  
   [a](x0) = [4  -&]x0
  orientation:
              [4 0]             
   a(a(x1)) = [4 4]x1 >= x1 = x1
   
              [4 0]      [4  -&]                      
   a(a(x1)) = [4 4]x1 >= [4  -&]x1 = b(a(a(a(b(x1)))))
  problem:
   strict:
    
   weak:
    a(a(x1)) -> b(a(a(a(b(x1)))))
  Qed