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Proof step 28 from proof junkrefs-put-badarrayindex (previous step)

is_array(str, r, st) ∧ st[r -- _type] .type ≤ ty, st[r -- i0 '] = refval(r2), junkrefs(str, r2 ' + refs, st[r -- _type] .type .type, st[r0 -- i ', val]), i0 < st[r -- _length] .intval, is_array(str, r, st), st[r -- _type] .type ≤ ty, is_array(str, r, st[r0 -- i ', val]), 0 < st[r -- _length] .intval, 0 ≤ i0, ∀ str0, ty0, st0, r1, i1, val0. junkrefs(str0, r2 ' + refs, ty0, st0[r1 -- i1 ', val0]) → junkrefs(str0, r2 ' + refs, ty0, st0) ∨ is_array(str0, r1, st0) ⊦ r = jvmref, r2 ' + refs ≠ [] ∧ (∃ i. 0 ≤ i ∧ i < st[r -- _length] .intval ∧ is_referencevalue(st[r -- i ']) ∧ (r2 ' + refs) .first = st[r -- i '] .refval ∧ junkrefs(str, r2 ' + refs, st[r -- _type] .type .type, st)), is_array(str, r0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 27:
st[r -- i0 '] = refval(r2), junkrefs(str, r2 ' + refs, st[r -- _type] .type .type, st[r0 -- i ', val]), i0 < st[r -- _length] .intval, is_array(str, r, st), st[r -- _type] .type ≤ ty, is_array(str, r, st[r0 -- i ', val]), 0 < st[r -- _length] .intval, 0 ≤ i0, ∀ str0, ty0, st0, r1, i1, val0. junkrefs(str0, r2 ' + refs, ty0, st0[r1 -- i1 ', val0]) → junkrefs(str0, r2 ' + refs, ty0, st0) ∨ is_array(str0, r1, st0) ⊦ r = jvmref, is_array(str, r0, st), ∃ i1. ¬ i1 < 0 ∧ ¬ st[r -- _length] .intval ≤ i1 ∧ is_referencevalue(st[r -- i1 ']) ∧ r2 = st[r -- i1 '] .refval ∧ junkrefs(str, st[r -- i1 '] .refval ' + refs, st[r -- _type] .type .type, st)

Rule argument

[emptyarg]

Additional information

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