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Proof step 8 from proof junkrefs-put-badarrayindex (previous step)

st[r -- mkfs(class, ty1, fieldvar) '] = refval(r2), junkrefs(str, r2 ' + refs, ty1, st[r0 -- i ', val]), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), is_obj(str, r, st), st[r -- _type] .type ≤ ty, ∀ str0, ty0, st0, r1, i0, val0. junkrefs(str0, r2 ' + refs, ty0, st0[r1 -- i0 ', val0]) → junkrefs(str0, r2 ' + refs, ty0, st0) ∨ is_array(str0, r1, st0) ⊦ r = jvmref, is_array(str, r0, st), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class) ∧ is_referencevalue(st[r -- mkfs(class, ty1, fieldvar) ']) ∧ r2 = st[r -- mkfs(class, ty1, fieldvar) '] .refval ∧ junkrefs(str, st[r -- mkfs(class, ty1, fieldvar) '] .refval ' + refs, mkfs(class, ty1, fieldvar) .type, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 7:
st[r -- mkfs(class, ty1, fieldvar) '] = refval(r2), st[r -- _type] .type ≤ ty, is_obj(str, r, st), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), junkrefs(str, r2 ' + refs, ty1, st[r0 -- i ', val]), ∀ str0, ty0, st0, r1, i0, val0. junkrefs(str0, r2 ' + refs, ty0, st0[r1 -- i0 ', val0]) → junkrefs(str0, r2 ' + refs, ty0, st0) ∨ is_array(str0, r1, st0) ⊦ r = jvmref, is_array(str, r0, st), junkrefs(str, r2 ' + refs, ty1, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))], [CSIMPSEQ : ⊦ mkfs(class, ty, fieldvar) .type = ty], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])]]