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Proof step 2 from proof junkrefs-put-norefval (previous step)

junkrefs(str, refs, ty, st[r1 -- mkfs(class, ty0, fieldvar) ', val]), okval(val, ty0) ⊦ mkfs(class, ty0, fieldvar) ' = _length, ty0 = void_type, junkrefs(str, refs, ty, st), is_referencevalue(val)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ ¬ is_referencevalue(val) ∧ ¬ junkrefs(str, refs, ty, st) ∧ is_fskey(sk) ∧ okval(val, sk .fs .type) ∧ sk .fs .type ≠ void_type ∧ sk ≠ _length → ¬ junkrefs(str, refs, ty, st[r1 -- sk, val])

Rule argument

[crewrite-arg: junkrefs-put-norefval-01 , F , [val, sk, r1, st, ty, refs, str] → [val, mkfs(class, ty0, fieldvar) ', r1, st, ty, refs, str] ]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_fskey(fs ')], [CSIMPSEQ : ⊦ fs ' .fs = fs], [CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .type = ty])], [EXTRATERMS : (val, mkfs(class, ty0, fieldvar) ', r1, st, ty, refs, str)]]