cbmc-cover/pointer-function-parameters test: negative numbers are ok #8177
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We need to cover three scenarios:
a
isNULL
, or*a
is 4, or*a
is some integer other than 4. The latter includes negative values.Seen in
https://github.com/diffblue/cbmc/actions/runs/7740169274/job/21104572343?pr=8141.