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Proof step 17 from proof junkrefs-notin (previous step)

acc + r ' = r1 ' + refs, st[r0 -- mkfs(class, ty0, fieldvar) '] = refval(r1), st[r0 -- _type] .type ≤ ty, is_obj(str, r0, st), junkrefs(str, r1 ' + refs, ty0, st), mkfs(class, ty0, fieldvar) ' ∈ instfields(st[r0 -- _type] .type .class), ∀ str, r, refs0, ty, st. (junkrefs(str, acc + r ' + refs0, ty, st) ↔ junkrefs(str, acc + r ', ty, st)) ∨ r ∈ st ⊦ r0 = jvmref, r ∈ st, mkfs(class, ty0, fieldvar) ' ∈ instfields(st[r0 -- _type] .type .class) ∧ is_referencevalue(st[r0 -- mkfs(class, ty0, fieldvar) ']) ∧ r1 = st[r0 -- mkfs(class, ty0, fieldvar) '] .refval ∧ junkrefs(str, acc + r ' + refs0, mkfs(class, ty0, fieldvar) .type, st), r ≠ r1 ∧ ¬ r ∈ refs, ¬ r1 ∈ acc ∧ r1 ≠ r

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 16:
st[r0 -- mkfs(class, ty0, fieldvar) '] = refval(r1), acc + r ' = r1 ' + refs, mkfs(class, ty0, fieldvar) ' ∈ instfields(st[r0 -- _type] .type .class), junkrefs(str, r1 ' + refs, ty0, st), is_obj(str, r0, st), st[r0 -- _type] .type ≤ ty, ∀ str, r, refs0, ty, st. (junkrefs(str, acc + r ' + refs0, ty, st) ↔ junkrefs(str, acc + r ', ty, st)) ∨ r ∈ st ⊦ r0 = jvmref, r ∈ st, junkrefs(str, acc + r ' + refs0, ty0, st), ¬ r1 ∈ acc ∧ r1 ≠ r, r ≠ r1 ∧ ¬ r ∈ refs

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))], [CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .type = ty])]]