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Proof step 12 from proof junkref-put-ba (previous step)

st[r0 -- _type] = typeval(mkarraytype(byte_type)), is_array(r0, st), junkref(str, r, st[r1 -- mkfs(class, mkarraytype(byte_type), fieldvar) ', refval(r0)]) ⊦ junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 1:
⊦ junkref(str, r, st) ↔ (∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs(str, refs, st[r -- _type] .type, st))
Proof step 11:
st[r0 -- _type] = typeval(mkarraytype(byte_type)), is_array(r0, st), ∃ refs. refs ≠ [] ∧ refs .first = r ∧ junkrefs (str, refs, (st[r1 -- mkfs(class, mkarraytype(byte_type), fieldvar) ', refval(r0)][r -- _type]) .type, st[r1 -- mkfs(class, mkarraytype(byte_type), fieldvar) ', refval(r0)]) ⊦ junkref(str, r, st)

Rule argument

[crewrite-arg: junkref-def , F , [st, r, str] → [st[r1 -- mkfs(class, mkarraytype(byte_type), fieldvar) ', refval(r0)], r, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st[ r1 -- mkfs(class, mkarraytype(byte_type), fieldvar) ', refval(r0)], r, str)]]