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Proof step 3 from proof validref-array-01 (conclusion)

⊦ validref(str, r, mkarraytype(ty), st) ∧ r ≠ jvmref → ¬ st[r -- _length] .intval < 0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 2:
validref(str, r, mkarraytype(ty), st), st[r -- _length] .intval < 0 ⊦ r = jvmref

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ j < i ∧ i ≤ 0 → j < 0])]]