/export/starexec/sandbox2/solver/bin/starexec_run_ttt2-1.17+nonreach /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files


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NO

Problem:
 hd(cons()) -> X
 tl(cons()) -> Y
 nats() -> adx(zeros())
 zeros() -> cons()
 incr(cons()) -> cons()
 adx(cons()) -> incr(cons())

Proof:
 Fresh Variable Processor: loop length: 1
                           terms:
                            hd(cons())
                           context: []
                           substitution:
                            X -> hd(cons())
  Qed