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Proof step 57 from proof validrefs-put-last (previous step)

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, ¬ validrefs(str, acc + r0 ', st[r -- _type] .type .type, st) ∧ ¬ junkref(str, acc .first, st) ∧ acc ≠ [] ∧ ¬ r0 ∈ acc ∧ sk ≠ _type → ¬ validrefs(str, acc + r0 ', st[r -- _type] .type .type, st[r0 -- sk, val]) ⊦ sk = _type, r0 = r, r = jvmref, r0 ∈ acc, junkref(str, r, st), validrefs(str, r1 ' + refs, st[r -- _type] .type .type, st), r0 ≠ r1 ∧ ¬ r0 ∈ refs, ¬ r1 ∈ acc ∧ r1 ≠ r0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 56:
st[r -- i '] = refval(r1), acc + r0 ' = r1 ' + refs, 0 < st[r -- _length] .intval, 0 ≤ i, validrefs(str, r1 ' + refs, st[r -- _type] .type .type, st[r0 -- sk, val]), i < st[r -- _length] .intval, st[r -- _type] .type ≤ ty, is_array(str, r, st) ⊦ r = jvmref, r0 = r, sk = _type, validrefs(str, r1 ' + refs, st[r -- _type] .type .type, st), junkref(str, r, st), r0 ∈ acc, ¬ r1 ∈ acc ∧ r1 ≠ r0, r0 ≠ r1 ∧ ¬ r0 ∈ refs, ¬ junkref(str, acc .first, st) ∧ acc ≠ []

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (refs + refs0) + refs1 = refs + refs0 + refs1])]]