YES

The TRS could be proven terminating. The proof took 17 ms.

The following DP Processors were used


Problem 1 was processed with processor DependencyGraph (5ms).
 | – Problem 2 was processed with processor SubtermCriterion (1ms).
 | – Problem 3 was processed with processor SubtermCriterion (0ms).

Problem 1: DependencyGraph



Dependency Pair Problem

Dependency Pairs

f#(s(x), s(y))f#(x, s(c(s(y))))f#(x, c(y))f#(x, s(f(y, y)))
f#(x, c(y))f#(y, y)

Rewrite Rules

f(x, c(y))f(x, s(f(y, y)))f(s(x), s(y))f(x, s(c(s(y))))

Original Signature

Termination of terms over the following signature is verified: f, s, c

Strategy


The following SCCs where found

f#(s(x), s(y)) → f#(x, s(c(s(y))))

f#(x, c(y)) → f#(y, y)

Problem 2: SubtermCriterion



Dependency Pair Problem

Dependency Pairs

f#(x, c(y))f#(y, y)

Rewrite Rules

f(x, c(y))f(x, s(f(y, y)))f(s(x), s(y))f(x, s(c(s(y))))

Original Signature

Termination of terms over the following signature is verified: f, s, c

Strategy


Projection

The following projection was used:

Thus, the following dependency pairs are removed:

f#(x, c(y))f#(y, y)

Problem 3: SubtermCriterion



Dependency Pair Problem

Dependency Pairs

f#(s(x), s(y))f#(x, s(c(s(y))))

Rewrite Rules

f(x, c(y))f(x, s(f(y, y)))f(s(x), s(y))f(x, s(c(s(y))))

Original Signature

Termination of terms over the following signature is verified: f, s, c

Strategy


Projection

The following projection was used:

Thus, the following dependency pairs are removed:

f#(s(x), s(y))f#(x, s(c(s(y))))