Term Rewriting System R:
[ls, a, x, k]
rev(ls) -> r1(ls, empty)
r1(empty, a) -> a
r1(cons(x, k), a) -> r1(k, cons(x, a))

Innermost Termination of R to be shown.



   R
Removing Redundant Rules



Removing the following rules from R which fullfill a polynomial ordering:

rev(ls) -> r1(ls, empty)

where the Polynomial interpretation:
  POL(rev(x1))=  1 + x1  
  POL(cons(x1, x2))=  x1 + x2  
  POL(r1(x1, x2))=  x1 + x2  
  POL(empty)=  0  
was used.

Not all Rules of R can be deleted, so we still have to regard a part of R.


   R
RRRPolo
       →TRS2
Removing Redundant Rules



Removing the following rules from R which fullfill a polynomial ordering:

r1(empty, a) -> a

where the Polynomial interpretation:
  POL(cons(x1, x2))=  x1 + x2  
  POL(r1(x1, x2))=  1 + x1 + x2  
  POL(empty)=  0  
was used.

Not all Rules of R can be deleted, so we still have to regard a part of R.


   R
RRRPolo
       →TRS2
RRRPolo
           →TRS3
Removing Redundant Rules



Removing the following rules from R which fullfill a polynomial ordering:

r1(cons(x, k), a) -> r1(k, cons(x, a))

where the Polynomial interpretation:
  POL(cons(x1, x2))=  1 + x1 + x2  
  POL(r1(x1, x2))=  2·x1 + x2  
was used.

All Rules of R can be deleted.


   R
RRRPolo
       →TRS2
RRRPolo
           →TRS3
RRRPolo
             ...
               →TRS4
Dependency Pair Analysis



R contains no Dependency Pairs and therefore no SCCs.

Innermost Termination of R successfully shown.
Duration:
0:00 minutes