/export/starexec/sandbox2/solver/bin/starexec_run_default /export/starexec/sandbox2/benchmark/theBenchmark.xml /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Problem 1: (VAR v_NonEmpty:S X:S XS:S) (RULES tail(cons(X:S)) -> XS:S zeros -> cons(0) ) Problem 1: Extra Variables Processor: -> Rules: tail(cons(X:S)) -> XS:S zeros -> cons(0) -> The system has extra variables. The problem is infinite.