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Proof step 22 from proof isarray-keyin (previous step)

st[r -- sk] = refval(r0), 0 < st[r -- (sk ' + _length ')] .intval, 0 ≤ i, i < st[r -- (sk ' + _length ')] .intval, r0 ≠ jvmref ∧ r0 -- _type ∈ st ∧ is_typevalue(st[r0 -- _type]) ∧ is_arraytype(st[r0 -- _type] .type) ∧ okarray(r0, st[r0 -- _type] .type .type, st) ⊦ r0 -- i ' ∈ st

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
⊦ okarray(r, ty, st) → r ≠ jvmref ∧ r ∈ st
Proof step 21:
st[r -- sk] = refval(r0), 0 < st[r -- (sk ' + _length ')] .intval, 0 ≤ i, i < st[r -- (sk ' + _length ')] .intval, r0 -- _type ∈ st, is_typevalue(st[r0 -- _type]), is_arraytype(st[r0 -- _type] .type), okarray(r0, st[r0 -- _type] .type .type, st), r0 ∈ st ⊦ r0 = jvmref, r0 -- i ' ∈ st

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ r -- sk ∈ st → r ∈ st])]]