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Proof step 29 from proof junkref-addobj-01 (previous step)

is_obj(str, r0, st) ∧ st[r0 -- _type] .type ≤ ty, is_obj(str, r0, st), fis .keys = instfields(class), fis[mkfs(class0, ty, fieldvar) '] = refval(r0), mkfs(class0, ty, fieldvar) ' ∈ fis, junkrefs(str, r0 ' + refs, ty, addobj(r, class, fis, st)), mkfs(class0, ty, fieldvar) ' ∈ instfields(class), validfieldinits(fis, st), class+∃(str, class), newref(r, st), refs ≠ [] ∧ (∃ fs. fs ' ∈ instfields(st[r0 -- _type] .type .class) ∧ is_referencevalue(st[r0 -- fs ']) ∧ refs .first = st[r0 -- fs '] .refval ∧ junkrefs(str, refs, fs .type, st)) ⊦ r = jvmref, r0 = jvmref, is_abstract(class), r0 ' + refs ≠ [] ∧ (r0 ' + refs) .first = r0 ∧ junkrefs(str, r0 ' + refs, st[(r0 ' + refs) .first -- _type] .type, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 28:
fis .keys = instfields(class), fis[mkfs(class0, ty, fieldvar) '] = refval(r0), refs .first = st[r0 -- fs '] .refval, st[r0 -- _type] .type ≤ ty, is_obj(str, r0, st), mkfs(class0, ty, fieldvar) ' ∈ fis, junkrefs(str, r0 ' + refs, ty, addobj(r, class, fis, st)), mkfs(class0, ty, fieldvar) ' ∈ instfields(class), validfieldinits(fis, st), class+∃(str, class), newref(r, st), fs ' ∈ instfields(st[r0 -- _type] .type .class), is_referencevalue(st[r0 -- fs ']), junkrefs(str, refs, fs .type, st) ⊦ r = jvmref, r0 = jvmref, refs = [], is_abstract(class), junkrefs(str, r0 ' + refs, st[r0 -- _type] .type, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (r ' + refs) .first = r], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ r ' ≠ []], [CSIMPSEQ : ⊦ ¬ refs + refs0 ≠ [] ↔ refs = [] ∧ refs0 = []])]]