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Proof step 42 from proof fits-put (previous step)

st[r1 -- i '] = refval(r0), i < st[r1 -- _length] .intval, okreftype(refval(r1), mkarraytype(byte_type), st) ∧ r1 ≠ jvmref ∧ r1 -- _length ∈ st ∧ is_integervalue(st[r1 -- _length]) ∧ 0 ≤ st[r1 -- _length] .intval ∧ is_arrayref(r1, st[r1 -- _length] .intval, st) ∧ (∀ j. 0 ≤ j ∧ j < st[r1 -- _length] .intval → oktype(st[r1 -- j '], byte_type, st)), r1 ∈ st, 0 ≤ i, 0 < st[r1 -- _length] .intval ⊦ r1 = jvmref, junkref(str, r1, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 41:
st[r1 -- i '] = refval(r0), i < st[r1 -- _length] .intval, okreftype(refval(r1), mkarraytype(byte_type), st), r1 -- _length ∈ st, is_integervalue(st[r1 -- _length]), is_arrayref(r1, st[r1 -- _length] .intval, st), 0 ≤ i, 0 < st[r1 -- _length] .intval, r1 ∈ st, 0 ≤ st[r1 -- _length] .intval, ∀ j. ¬ j < 0 ∧ ¬ st[r1 -- _length] .intval ≤ j → is_bytevalue(st[r1 -- j ']) ⊦ r1 = jvmref, junkref(str, r1, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ r -- sk ∈ st → r ∈ st], [CSIMPFORWARD : ⊦ i ≤ j ∧ 0 ≤ i → 0 ≤ j], [CSIMPSEQ : ⊦ oktype(val, byte_type, st) ↔ is_bytevalue(val)], [CSIMPSEQ : ⊦ ¬ i < j ↔ j ≤ i], [CSIMPSEQ : ⊦ ¬ i ≤ j ↔ j < i])]]