MAYBE

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

Strict Trs:
  { #equal(@x, @y) -> #eq(@x, @y)
  , and(@x, @y) -> #and(@x, @y)
  , eq(@l1, @l2) -> eq#1(@l1, @l2)
  , eq#1(::(@x, @xs), @l2) -> eq#3(@l2, @x, @xs)
  , eq#1(nil(), @l2) -> eq#2(@l2)
  , eq#3(::(@y, @ys), @x, @xs) -> and(#equal(@x, @y), eq(@xs, @ys))
  , eq#3(nil(), @x, @xs) -> #false()
  , eq#2(::(@y, @ys)) -> #false()
  , eq#2(nil()) -> #true()
  , nub(@l) -> nub#1(@l)
  , nub#1(::(@x, @xs)) -> ::(@x, nub(remove(@x, @xs)))
  , nub#1(nil()) -> nil()
  , remove(@x, @l) -> remove#1(@l, @x)
  , remove#1(::(@y, @ys), @x) -> remove#2(eq(@x, @y), @x, @y, @ys)
  , remove#1(nil(), @x) -> nil()
  , remove#2(#false(), @x, @y, @ys) -> ::(@y, remove(@x, @ys))
  , remove#2(#true(), @x, @y, @ys) -> remove(@x, @ys) }
Weak Trs:
  { #eq(::(@x_1, @x_2), ::(@y_1, @y_2)) ->
    #and(#eq(@x_1, @y_1), #eq(@x_2, @y_2))
  , #eq(::(@x_1, @x_2), nil()) -> #false()
  , #eq(nil(), ::(@y_1, @y_2)) -> #false()
  , #eq(nil(), nil()) -> #true()
  , #eq(#0(), #0()) -> #true()
  , #eq(#0(), #neg(@y)) -> #false()
  , #eq(#0(), #pos(@y)) -> #false()
  , #eq(#0(), #s(@y)) -> #false()
  , #eq(#neg(@x), #0()) -> #false()
  , #eq(#neg(@x), #neg(@y)) -> #eq(@x, @y)
  , #eq(#neg(@x), #pos(@y)) -> #false()
  , #eq(#pos(@x), #0()) -> #false()
  , #eq(#pos(@x), #neg(@y)) -> #false()
  , #eq(#pos(@x), #pos(@y)) -> #eq(@x, @y)
  , #eq(#s(@x), #0()) -> #false()
  , #eq(#s(@x), #s(@y)) -> #eq(@x, @y)
  , #and(#false(), #false()) -> #false()
  , #and(#false(), #true()) -> #false()
  , #and(#true(), #false()) -> #false()
  , #and(#true(), #true()) -> #true() }
Obligation:
  innermost runtime complexity
Answer:
  MAYBE

None of the processors succeeded.

Details of failed attempt(s):
-----------------------------
1) 'Fastest' failed due to the following reason:
   
   None of the processors succeeded.
   
   Details of failed attempt(s):
   -----------------------------
   1) 'matrix interpretation of dimension 4' failed due to the
      following reason:
      
      The input cannot be shown compatible
   
   2) 'matrix interpretation of dimension 3' failed due to the
      following reason:
      
      The input cannot be shown compatible
   
   3) 'matrix interpretation of dimension 3' failed due to the
      following reason:
      
      The input cannot be shown compatible
   
   4) 'matrix interpretation of dimension 2' failed due to the
      following reason:
      
      The input cannot be shown compatible
   
   5) 'matrix interpretation of dimension 2' failed due to the
      following reason:
      
      The input cannot be shown compatible
   
   6) 'matrix interpretation of dimension 1' failed due to the
      following reason:
      
      The input cannot be shown compatible
   

2) 'Fastest' failed due to the following reason:
   
   None of the processors succeeded.
   
   Details of failed attempt(s):
   -----------------------------
   1) 'custom shape polynomial interpretation' failed due to the
      following reason:
      
      The input cannot be shown compatible
   
   2) 'custom shape polynomial interpretation' failed due to the
      following reason:
      
      The input cannot be shown compatible
   
   3) 'linear polynomial interpretation' failed due to the following
      reason:
      
      The input cannot be shown compatible
   


Arrrr..