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Proof step 16 from proof junkref-put-badfield (previous step)

¬ (¬ 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)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 15:
junkrefs(str, r0 ' + refs0, val .type, st[r0 -- _type, val]) ⊦ junkref(str, r0, st), is_typevalue(st[r0 -- _type]) ∧ is_reftype(st[r0 -- _type] .type), ¬ junkrefs(str, r0 ' + refs0, val .type, st) ∧ (¬ is_typevalue(st[r0 -- _type]) ∨ ¬ is_reftype(st[r0 -- _type] .type))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ mkfs (`java.lang.Object' .class, void_type, `type' .field) ' = _type])]]