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Proof step 14 from proof junkref-put-refval (previous step)

is_reftype(ty0), ty ≤ ty0, junkrefs(str, r ' + refs0, (st[r0 -- mkfs(class, ty0, fieldvar) ', refval(r1)][r -- _type]) .type, st[r0 -- mkfs(class, ty0, fieldvar) ', refval(r1)]), r1 = jvmref ∨ st[r1 -- _type] .type ≤ ty ∧ ¬ junkref(str, r1, st) ⊦ junkref(str, r, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 3:
⊦ ¬ junkrefs(str, refs, ty, st) ∧ ¬ junkref(str, r0, st) ∧ st[r0 -- _type] .type ≤ fs .type ∧ r0 ≠ jvmref ∧ fs .type ≠ void_type ∧ fs ' ≠ _length → ¬ junkrefs(str, refs, ty, st[r -- fs ', refval(r0)])
Proof step 13:
¬ ( ¬ junkrefs(str, r ' + refs0, (st[r0 -- mkfs(class, ty0, fieldvar) ', refval(r1)][r -- _type]) .type, st) ∧ ¬ junkref(str, r1, st) ∧ st[r1 -- _type] .type ≤ mkfs(class, ty0, fieldvar) .type ∧ r1 ≠ jvmref ∧ mkfs(class, ty0, fieldvar) .type ≠ void_type ∧ mkfs(class, ty0, fieldvar) ' ≠ _length), is_reftype(ty0), ty ≤ ty0, junkrefs(str, r ' + refs0, (st[r0 -- mkfs(class, ty0, fieldvar) ', refval(r1)][r -- _type]) .type, st[r0 -- mkfs(class, ty0, fieldvar) ', refval(r1)]), r1 = jvmref ∨ st[r1 -- _type] .type ≤ ty ∧ ¬ junkref(str, r1, st) ⊦ junkref(str, r, st)

Rule argument

[crewrite-arg: junkrefs-put-refval-01 , F , [r0, fs, r, st, ty, refs, str] → [r1, mkfs(class, ty0, fieldvar), r0, st, (st[r0 -- mkfs(class, ty0, fieldvar) ', refval(r1)][r -- _type]) .type, r ' + refs0, str] ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (r1, mkfs(class, ty0, fieldvar), r0, st, (st[r0 -- mkfs(class, ty0, fieldvar) ', refval(r1)] [r -- _type ] ) .type, r ' + refs0, str)]]