/export/starexec/sandbox/solver/bin/starexec_run_default /export/starexec/sandbox/benchmark/theBenchmark.xml /export/starexec/sandbox/output/output_files


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NO

Problem 1: 

(VAR v_NonEmpty:S X:S Y:S)
(RULES
add(0) -> X:S
add(s) -> s
and(ffalse) -> ffalse
and(ttrue) -> X:S
first(0,X:S) -> nil
first(s,cons) -> cons
from -> cons
if(ffalse) -> Y:S
if(ttrue) -> X:S
)

Problem 1: 

Extra Variables Processor:
-> Rules:
 add(0) -> X:S
 add(s) -> s
 and(ffalse) -> ffalse
 and(ttrue) -> X:S
 first(0,X:S) -> nil
 first(s,cons) -> cons
 from -> cons
 if(ffalse) -> Y:S
 if(ttrue) -> X:S
-> The system has extra variables.

The problem is infinite.