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Proof step 20 from proof okarray-copy-01 (previous step)

okarray(r0, byte_type, st), okarray(r, byte_type, st), 0 ≤ i, r0 ∈ st, r ∈ st, i + i1 < st[r0 -- _length] .intval, 0 ≤ i1, ∀ i0, i, r0, st, r, j0. i→n(j0) < i→n(i1 + 1) → ( okarray(r, byte_type, st) ∧ okarray(r0, byte_type, st) ∧ i + j0 ≤ st[r0 -- _length] .intval ∧ r ∈ st ∧ r0 ∈ st ∧ 0 ≤ i ∧ 0 ≤ j0 → r = jvmref ∨ r0 = jvmref ∨ okarray(r, byte_type, arraycopy(r0, i, r, i0, j0, st))) ⊦ okarray(r, byte_type, st[r -- (i0 + i1) ', st[r0 -- (i + i1) ']]) ∧ okarray(r0, byte_type, st[r -- (i0 + i1) ', st[r0 -- (i + i1) ']]) ∧ i + i1 ≤ (st[r -- (i0 + i1) ', st[r0 -- (i + i1) ']][r0 -- _length]) .intval ∧ r ∈ st[r -- (i0 + i1) ', st[r0 -- (i + i1) ']] ∧ r0 ∈ st[r -- (i0 + i1) ', st[r0 -- (i + i1) ']] ∧ 0 ≤ i ∧ 0 ≤ i1, r0 = jvmref, r = jvmref, okarray(r, byte_type, arraycopy(r0, i, r, i0, i1, st[r -- (i0 + i1) ', st[r0 -- (i + i1) ']]))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)], [CSIMPSEQ : ⊦ r ∈ st[r0 -- sk, val] ↔ r = r0 ∨ r ∈ st], [CSIMPSEQ : ⊦ i < j → ¬ j < i], [CSIMPSEQ : ⊦ i + j = j + i], [CSIMPSEQ : ⊦ ¬ i ≤ j ↔ j < i], [CSIMPSEQ : ⊦ (st[r -- i ', val][r0 -- _length] ) = st[r0 -- _length]])]]