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Proof step 8 from proof unchNorec-put-nopathex (previous step)

¬ (r ≠ jvmref ∧ ¬ is_valid_ref(str, r, st)), is_arraytype(st[r -- _type] .type) ⊦ r = jvmref, sk = _type, junkref(str, r, st), path∃(str, r, r0, st), st[r -- _length] = (st[r0 -- sk, val][r -- _length]) ∧ (0 ≤ i ∧ i < st[r -- _length] .intval → st[r -- i '] = (st[r0 -- sk, val][r -- i ']))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 7:
is_arraytype(st[r -- _type] .type), is_array(str, r, st) ⊦ r = jvmref, sk = _type, junkref(str, r, st), path∃(str, r, r0, st), st[r -- _length] = (st[r0 -- sk, val][r -- _length]) ∧ (0 ≤ i ∧ i < st[r -- _length] .intval → st[r -- i '] = (st[r0 -- sk, val][r -- i ']))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_arraytype (st[r -- _type] .type) ∧ r ≠ jvmref → ( is_valid_ref(str, r, st) ↔ is_array(str, r, st))])]]