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Proof step 5 from proof isarray-length-02 (previous step)

st[r -- sks] = refval(r0) ∧ is_referencevalue(st[r -- sks]), is_array(r0, st), st[r -- (sks + _length ')] .intval < 0 ⊦ sks = []

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
st[r -- sks] = refval(r0), st[r -- (sks + _length ')] .intval < 0, is_array(r0, st) ⊦ sks = []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_referencevalue(refval(r))])]]