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Proof step 26 from proof okbytearray-validref (previous step)

is_array(str, r, st), st[r -- _length] = intval(i), 0 ≤ i, r ∈ st, ∃ i. 0 ≤ i ∧ i < st[r -- _length] .intval ∧ is_referencevalue(st[r -- i ']) ∧ st[r -- i '] .refval ≠ jvmref ∧ (¬ st[st[r -- i '] .refval -- _type] .type ≤ st[r -- _type] .type .type ∨ junkref(str, st[r -- i '] .refval, st)), is_arrayref(r, i, st), r -- _length ∈ st, okreftype(refval(r), mkarraytype(byte_type), st), ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → is_bytevalue(st[r -- j ']) ⊦ r = jvmref

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 25:
st[r -- _length] = intval(i), r ∈ st, 0 ≤ i, is_array(str, r, st), 0 ≤ i0, okreftype(refval(r), mkarraytype(byte_type), st), r -- _length ∈ st, is_arrayref(r, i, st), is_referencevalue(st[r -- i0 ']), i0 < i, 0 < i, ∀ j. ¬ j < 0 ∧ ¬ i ≤ j → is_bytevalue(st[r -- j ']), ¬ st[st[r -- i0 '] .refval -- _type] .type ≤ st[r -- _type] .type .type ∨ junkref(str, st[r -- i0 '] .refval, st) ⊦ st[r -- i0 '] .refval = jvmref, r = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ intval(i) .intval = i], [CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j], [CSIMPFORWARD : ⊦ i < j ∧ 0 ≤ i → 0 < j])]]