Term Rewriting System R:
[x, y, z]
cons(x, cons(y, z)) -> big
inf(x) -> cons(x, inf(s(x)))
Termination of R to be shown.
R
↳Dependency Pair Analysis
R contains the following Dependency Pairs:
INF(x) -> CONS(x, inf(s(x)))
INF(x) -> INF(s(x))
Furthermore, R contains one SCC.
R
↳DPs
→DP Problem 1
↳Instantiation Transformation
Dependency Pair:
INF(x) -> INF(s(x))
Rules:
cons(x, cons(y, z)) -> big
inf(x) -> cons(x, inf(s(x)))
On this DP problem, an Instantiation SCC transformation can be performed.
As a result of transforming the rule
INF(x) -> INF(s(x))
one new Dependency Pair
is created:
INF(s(x'')) -> INF(s(s(x'')))
The transformation is resulting in one new DP problem:
R
↳DPs
→DP Problem 1
↳Inst
→DP Problem 2
↳Remaining Obligation(s)
The following remains to be proven:
Dependency Pair:
INF(s(x'')) -> INF(s(s(x'')))
Rules:
cons(x, cons(y, z)) -> big
inf(x) -> cons(x, inf(s(x)))
Termination of R could not be shown.
Duration:
0:00 minutes