[RUN] rebol -q -w -s sieve.rebol 1 -- FAIL (file does not exist)
[RUN] rebol -q -w -s sieve.rebol 300 -- FAIL (file does not exist)
[RUN] rebol -q -w -s sieve.rebol 600 -- FAIL (file does not exist)
[RUN] rebol -q -w -s sieve.rebol 900 -- FAIL (file does not exist)