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Proof step 17 from proof junkref-put-badfield (previous step)

mkfs(`java.lang.Object' .class, void_type, `type' .field) = fs, junkrefs(str, r0 ' + refs0, val .type, st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) ', val]) ⊦ junkref(str, r0, st), is_typevalue(st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) ']) ∧ is_reftype(st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) '] .type)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 4:
⊦ ¬ junkrefs(str, refs, ty, st) ∧ ¬ (is_typevalue(st[r0 -- _type]) ∧ is_reftype(st[r0 -- _type] .type)) → ¬ junkrefs(str, refs, ty, st[r0 -- fs ', val])
Proof step 16:
¬ (¬ junkrefs(str, r0 ' + refs0, val .type, st) ∧ ¬ (is_typevalue(st[r0 -- _type]) ∧ is_reftype(st[r0 -- _type] .type))), mkfs(`java.lang.Object' .class, void_type, `type' .field) = fs, junkrefs(str, r0 ' + refs0, val .type, st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) ', val]) ⊦ junkref(str, r0, st), is_typevalue(st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) ']) ∧ is_reftype(st[r0 -- mkfs(`java.lang.Object' .class, void_type, `type' .field) '] .type)

Rule argument

[crewrite-arg: junkrefs-put-badfield , F , [val, fs, r0, st, ty, refs, str] → [val, mkfs(`java.lang.Object' .class, void_type, `type' .field), r0, st, val .type, r0 ' + refs0, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (val, mkfs (`java.lang.Object' .class, void_type, `type' .field), r0, st, val .type, r0 ' + refs0, str)]]