MAYBE

We are left with following problem, upon which TcT provides the
certificate MAYBE.

Strict Trs:
  { a(l, x, s(y), h()) -> a(l, x, y, s(h()))
  , a(l, x, s(y), s(z)) -> a(l, x, y, a(l, x, s(y), z))
  , a(l, s(x), h(), z) -> a(l, x, z, z)
  , a(h(), h(), h(), x) -> s(x)
  , a(s(l), h(), h(), z) -> a(l, z, h(), z)
  , s(h()) -> 1()
  , +(x, h()) -> x
  , +(h(), x) -> x
  , +(s(x), s(y)) -> s(s(+(x, y)))
  , +(+(x, y), z) -> +(x, +(y, z))
  , app(l, nil()) -> l
  , app(nil(), k) -> k
  , app(cons(x, l), k) -> cons(x, app(l, k))
  , sum(cons(x, nil())) -> cons(x, nil())
  , sum(cons(x, cons(y, l))) -> sum(cons(a(x, y, h(), h()), l)) }
Obligation:
  innermost runtime complexity
Answer:
  MAYBE

None of the processors succeeded.

Details of failed attempt(s):
-----------------------------
1) 'empty' failed due to the following reason:
   
   Empty strict component of the problem is NOT empty.

2) 'Best' failed due to the following reason:
   
   None of the processors succeeded.
   
   Details of failed attempt(s):
   -----------------------------
   1) 'WithProblem (timeout of 60 seconds)' failed due to the
      following reason:
      
      Computation stopped due to timeout after 60.0 seconds.
   
   2) 'Best' failed due to the following reason:
      
      None of the processors succeeded.
      
      Details of failed attempt(s):
      -----------------------------
      1) 'WithProblem (timeout of 30 seconds) (timeout of 60 seconds)'
         failed due to the following reason:
         
         Computation stopped due to timeout after 30.0 seconds.
      
      2) 'Best' failed due to the following reason:
         
         None of the processors succeeded.
         
         Details of failed attempt(s):
         -----------------------------
         1) 'Polynomial Path Order (PS) (timeout of 60 seconds)' failed due
            to the following reason:
            
            The input cannot be shown compatible
         
         2) 'bsearch-popstar (timeout of 60 seconds)' failed due to the
            following reason:
            
            The input cannot be shown compatible
         
      
      3) 'Fastest (timeout of 5 seconds) (timeout of 60 seconds)' failed
         due to the following reason:
         
         None of the processors succeeded.
         
         Details of failed attempt(s):
         -----------------------------
         1) 'Bounds with perSymbol-enrichment and initial automaton 'match''
            failed due to the following reason:
            
            match-boundness of the problem could not be verified.
         
         2) 'Bounds with minimal-enrichment and initial automaton 'match''
            failed due to the following reason:
            
            match-boundness of the problem could not be verified.
         
      
   


Arrrr..