NO
proof of /export/starexec/sandbox/benchmark/theBenchmark.xml
# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty


Termination w.r.t. Q of the given QTRS could be disproven:

(0) QTRS
(1) NonTerminationProof [COMPLETE, 139 ms]
(2) NO


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(0)
Obligation:
Q restricted rewrite system:
The TRS R consists of the following rules:

   a(x1) -> b(x1)
   a(b(x1)) -> b(b(a(c(c(a(x1))))))
   c(b(x1)) -> x1

Q is empty.

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(1) NonTerminationProof (COMPLETE)
We used the non-termination processor [OPPELT08] to show that the SRS problem is infinite.

Found the self-embedding DerivationStructure: 
"a b b b -> b b a b b b c c b c c b"
a b b b -> b b a b b b c c b c c b
by OverlapClosure OC 3"a b b b -> b b a a b c c b
by OverlapClosure OC 3"a b b b -> b b a a c b b c c b
by OverlapClosure OC 3"a b b b -> b b a a c c b b b c c b
by OverlapClosure OC 2"a b b -> b b a a c c a
by OverlapClosure OC 3"a b b -> b b a c b a c c a
by OverlapClosure OC 3"a b b -> b b a c c b b a c c a
by OverlapClosure OC 2"a b -> b b a c c a
by original rule (OC 1)""a b -> b b a c c a
by original rule (OC 1)"""c b -> 
by original rule (OC 1)"""c b -> 
by original rule (OC 1)"""a b -> b b b c c b
by OverlapClosure OC 3"a b -> b b a c c b
by OverlapClosure OC 2"a b -> b b a c c a
by original rule (OC 1)""a -> b
by original rule (OC 1)"""a -> b
by original rule (OC 1)""""c b -> 
by original rule (OC 1)"""c b -> 
by original rule (OC 1)"""a b -> b b b c c b
by OverlapClosure OC 3"a b -> b b a c c b
by OverlapClosure OC 2"a b -> b b a c c a
by original rule (OC 1)""a -> b
by original rule (OC 1)"""a -> b
by original rule (OC 1)""

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(2)
NO