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Proof step 49 from proof validrefs-put-last (previous step)

acc = [], acc + r0 ' = r1 ' + refs, st[r -- i '] = refval(r1), is_array(str, r, st), st[r -- _type] .type ≤ ty, i < st[r -- _length] .intval, validrefs(str, r1 ' + refs, st[r -- _type] .type .type, st[r0 -- sk, val]), 0 ≤ i, 0 < st[r -- _length] .intval, st[r1 -- _type] .type ≤ st[r -- _type] .type .type ⊦ sk = _type, r0 = r, r = jvmref, r1 = jvmref, r0 ∈ acc, validrefs(str, r1 ' + refs, st[r -- _type] .type .type, st), junkref(str, r1, st), ¬ junkref(str, acc .first, st) ∧ acc ≠ [], r0 ≠ r1 ∧ ¬ r0 ∈ refs, ¬ r1 ∈ acc ∧ r1 ≠ r0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 48:
st[r -- i '] = refval(r1), i < st[r -- _length] .intval, st[r -- _type] .type ≤ ty, is_array(str, r, st), st[r1 -- _type] .type ≤ st[r -- _type] .type .type, 0 < st[r -- _length] .intval, 0 ≤ i, validrefs(str, r1 ', st[r -- _type] .type .type, st[r1 -- sk, val]) ⊦ r1 = jvmref, r = jvmref, r1 = r, sk = _type, junkref(str, r1, st), validrefs(str, r1 ', st[r -- _type] .type .type, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refs + [] = refs], [CSIMPSEQ : ⊦ ¬ r ∈ []], [CSIMPSEQ : ⊦ r ' = r0 ' + refs ↔ r = r0 ∧ refs = []], [CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1], [CSIMPSEQ : ⊦ [] + refs = refs])]]