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Proof step 81 from proof unchanged-junkrefs-level (previous step)

st[r -- i '] = refval(r1), st[r -- _type] .type = mkarraytype(ty1), st[r -- _length] = st1[r -- _length], st1[r -- i '] = refval(r1), st1[r -- _type] = st[r -- _type], is_array(str0, r, st1), 0 < st1[r -- _length] .intval, is_array(str0, r, st), unchangedNorec(r, st, st1), is_array(str, r, st), 0 ≤ i, is_array(str, r, st1), mkarraytype(ty1) ≤ ty, i < st1[r -- _length] .intval, junkrefs(str, r1 ' + refs, ty1, st), unchanged(str0, r, st, st1), level⊆(str, str0), is_valid_ref(str, r1, st1), st1[r1 -- _type] .type ≤ ty1, ∀ i0. ¬ i0 < 0 ∧ ¬ st1[r -- _length] .intval ≤ i0 → st[r -- i0 '] = st1[r -- i0 '], ∀ r0. (path∃(str0, r, r0, st) ↔ path∃(str0, r, r0, st1)) ∧ (path∃(str0, r, r0, st) → unchangedNorec(r0, st, st1)) ⊦ r1 = jvmref, r = jvmref, r = r1, junkrefs(str, r1 ' + refs, ty1, st1), unchanged(str0, r1, st, st1), st[r1 -- _type] .type ≤ ty1 ∧ is_valid_ref(str0, r1, st), ∃ i0. ¬ i0 < 0 ∧ ¬ st1[r -- _length] .intval ≤ i0 ∧ is_referencevalue(st1[r -- i0 ']) ∧ st1[r -- i0 '] .refval ≠ jvmref ∧ st1[st1[r -- i0 '] .refval -- _type] .type ≤ mkarraytype(ty1) .type ∧ path∃(str0, st1[r -- i0 '] .refval, r1, st1)

User applied rule exists right

And obtained the following new goals

Rule argument

[EXRARG : pos: right 7, [extquanttermlist: (i)abort:F, discard:T, computed:T]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (i)]]