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Proof step 48 from proof fits-put-02 (previous step)

st[r -- sk] = refval(r0), r1 ∈ st, is_referencevalue(st[r -- (sk ' + sks0)]), okarray(r1, byte_type, st), fits(r0, sks0, st[r1 -- i ', byteval(by)]), r ≠ r1 ∨ sk ≠ i ', ∀ st, r, r1, i, by, str. is_referencevalue(st[r -- sks0]) ∧ okarray(r1, byte_type, st) ∧ fits(r, sks0, st[r1 -- i ', byteval(by)]) ∧ r1 ∈ st → r1 = jvmref ∨ fits(r, sks0, st) ∨ junkref(str, r, st), is_classtype(st[r -- _type] .type) → sk ∈ instfields(st[r -- _type] .type .class), is_arraytype(st[r -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval ⊦ r1 = jvmref, r = jvmref, junkref(str, r, st), fits(r0, sks0, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,r ≠ jvmref ∧ ¬ is_valid_ref(str, r, st) → junkref(str, r, st) ,[st, r, str] → [st, r, str] ,F ,junkrefs , ,junkref-is-junk ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r, str)]]