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Proof step 27 from proof junkrefs-delete-02 (previous step)

st[r0 -- i '] = refval(r2), junkrefs(str, r2 ' + refs, st[r0 -- _type] .type .type, st), i < st[r0 -- _length] .intval, 0 < st[r0 -- _length] .intval, 0 ≤ i, is_array(str, r0, st), st[r0 -- _type] .type ≤ ty, ∀ str0, ty0, st0, r1. junkrefs(str0, r2 ' + refs, ty0, st0) → junkrefs(str0, r2 ' + refs, ty0, st0 -- r1) ⊦ r0 = jvmref, r = r0, ¬ i < 0 ∧ ¬ st[r0 -- _length] .intval ≤ i ∧ is_referencevalue(st[r0 -- i ']) ∧ r2 = st[r0 -- i '] .refval ∧ junkrefs(str, st[r0 -- i '] .refval ' + refs, st[r0 -- _type] .type .type, st -- r)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 26:
st[r0 -- i '] = refval(r2), st[r0 -- _type] .type ≤ ty, is_array(str, r0, st), 0 ≤ i, 0 < st[r0 -- _length] .intval, i < st[r0 -- _length] .intval, junkrefs(str, r2 ' + refs, st[r0 -- _type] .type .type, st), ∀ str0, ty0, st0, r1. junkrefs(str0, r2 ' + refs, ty0, st0) → junkrefs(str0, r2 ' + refs, ty0, st0 -- r1) ⊦ r = r0, r0 = jvmref, junkrefs(str, r2 ' + refs, st[r0 -- _type] .type .type, st -- r)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))], [CSIMPSEQ : ⊦ i < j → (¬ ¬ j ≤ i ↔ false)], [CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)])]]