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Proof step 5 from proof validref-array-rec (previous step)

st[r -- i '] = refval(r0), 0 < st[r -- _length] .intval, 0 ≤ i, st[r -- _type] .type ≤ ty, is_array(str, r, st), i < st[r -- _length] .intval, i < 0 ∨ st[r -- _length] .intval ≤ i ∨ ¬ is_referencevalue(st[r -- i ']) ∨ st[r -- i '] .refval = jvmref ∨ st[st[r -- i '] .refval -- _type] .type ≤ st[r -- _type] .type .type ∧ ¬ junkref(str, st[r -- i '] .refval, st) ⊦ r = jvmref, r0 = jvmref, st[r0 -- _type] .type ≤ st[r -- _type] .type .type ∧ validref(str, r0, st[r -- _type] .type .type, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 4:
st[r -- i '] = refval(r0), i < st[r -- _length] .intval, is_array(str, r, st), st[r -- _type] .type ≤ ty, 0 ≤ i, 0 < st[r -- _length] .intval, st[r0 -- _type] .type ≤ st[r -- _type] .type .type ⊦ r0 = jvmref, r = jvmref, junkref(str, r0, st), validref(str, r0, st[r -- _type] .type .type, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))], [CSIMPSEQ : ⊦ i < j → (¬ ¬ j ≤ i ↔ false)], [CSIMPSEQ : ⊦ i ≤ j → (¬ ¬ j < i ↔ false)])]]