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Proof step 29 from proof junkref-update-equiv (previous step)

st[r -- mkfs(class, ty, fieldvar) '] = refval(r1), junkrefs(str, r1 ' + acc, ty, st), is_referencevalue(st[r -- mkfs(class, ty, fieldvar) ']), mkfs(class, ty, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), is_valid_ref(str, r0, st), validFields(r0, fis, st), is_obj(str, r, st), ∀ r0, fis, st, str, r. validFields(r0, fis, st) ∧ is_valid_ref(str, r0, st) ∧ junkrefs(str, r ' + acc, st[r -- _type] .type, st) → junkref(str, r, update(r0, fis, st)) ∨ path∃(str, r, r0, st) ∨ _type ∈ fis ⊦ r = jvmref, r = r0, _type ∈ fis, path∃(str, r, r0, st), junkref(str, r, update(r0, fis, st))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 28:
st[r -- mkfs(class, ty, fieldvar) '] = refval(r1), is_obj(str, r, st), validFields(r0, fis, st), is_valid_ref(str, r0, st), mkfs(class, ty, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), junkrefs(str, r1 ' + acc, ty, st), ∀ r0, fis, st, str, r. validFields(r0, fis, st) ∧ is_valid_ref(str, r0, st) ∧ junkrefs(str, r ' + acc, st[r -- _type] .type, st) → junkref(str, r, update(r0, fis, st)) ∨ path∃(str, r, r0, st) ∨ _type ∈ fis ⊦ r = r0, r = jvmref, junkref(str, r, update(r0, fis, st)), path∃(str, r, r0, st), _type ∈ fis

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_referencevalue(refval(r))])]]