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Proof step 21 from proof okarray-copy (previous step)

st[r0 -- _length] = intval(i), j < i, 0 ≤ i, r0 ∈ st, is_arrayref(r0, i, st), r0 -- _length ∈ st, okreftype(refval(r0), mkarraytype(byte_type), st), 0 ≤ j, 0 < i, ∀ j0. ¬ j0 < 0 ∧ ¬ i ≤ j0 → is_bytevalue(st[r0 -- j0 ']) ⊦ r0 = jvmref, r = jvmref, is_bytevalue(arraycopy(r0, 0, r, 0, i, addarray(r, byte_type, i, st))[r -- j '])

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 13:
⊦ r ≠ r0 ∧ i0 ≤ j0 ∧ j0 < i0 + j → (arraycopy(r, i, r0, i0, j, st)[r0 -- j0 ']) = st[r -- ((j0 - i0) + i) ']
Proof step 17:
¬ (r0 ≠ r ∧ 0 ≤ j ∧ j < 0 + i), st[r0 -- _length] = intval(i), j < i, 0 ≤ i, r0 ∈ st, is_arrayref(r0, i, st), r0 -- _length ∈ st, okreftype(refval(r0), mkarraytype(byte_type), st), 0 ≤ j, 0 < i, ∀ j0. ¬ j0 < 0 ∧ ¬ i ≤ j0 → is_bytevalue(st[r0 -- j0 ']) ⊦ r0 = jvmref, r = jvmref, is_bytevalue(arraycopy(r0, 0, r, 0, i, addarray(r, byte_type, i, st))[r -- j '])
Proof step 20:
r0 ≠ r ∧ 0 ≤ j ∧ j < 0 + i, st[r0 -- _length] = intval(i), j < i, 0 ≤ i, r0 ∈ st, is_arrayref(r0, i, st), r0 -- _length ∈ st, okreftype(refval(r0), mkarraytype(byte_type), st), 0 ≤ j, 0 < i, ∀ j0. ¬ j0 < 0 ∧ ¬ i ≤ j0 → is_bytevalue(st[r0 -- j0 ']) ⊦ r0 = jvmref, r = jvmref, is_bytevalue(addarray(r, byte_type, i, st)[r0 -- ((j - 0) + 0) '])

Rule argument

[speclemmaarg: , r ≠ r0 ∧ i0 ≤ j0 ∧ j0 < i0 + j → (arraycopy(r, i, r0, i0, j, st)[r0 -- j0 ']) = st[r -- ((j0 - i0) + i) '] ,[j0, st, j, i0, r0, i, r] → [j, addarray(r, byte_type, i, st), i, 0, r, 0, r0] ,F ,storearrays , ,copy-between ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (j, addarray(r, byte_type, i, st), i, 0, r, 0, r0)]]