File: test.desc

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CORE
main.c
--dfcc main --enforce-contract foo
^EXIT=(1|64)$
^SIGNAL=0$
^CONVERSION ERROR$
error: failed to find symbol 'y'
--
--
Verification:
This test checks that history variables may only be used with existing
symbols. In other words, including a new symbol as part of __CPROVER_old()
is not alowed. In such a case, the program should not parse and there
should be a conversion error.