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Proof step 43 from proof unchanged-junkrefs (previous step)

unchangedNorec(r, st, st1) ∧ 0 ≤ i ∧ i < st1[r -- _length] .intval ∧ is_arraytype(st1[r -- _type] .type) ∧ r ≠ jvmref, st[r -- _type] = st1[r -- _type], st[r -- _length] = st1[r -- _length], refs0 .first = st[r -- i '] .refval, is_array(str, r, st1), is_array(str, r, st), i < st1[r -- _length] .intval, is_referencevalue(st[r -- i ']), junkrefs(str, refs0, st1[r -- _type] .type .type, st1), unchanged(str, r, st, st1), st1[r -- _type] .type ≤ ty, unchangedNorec(r, st, st1), is_arraytype(st1[r -- _type] .type), 0 ≤ i, 0 < st1[r -- _length] .intval, ∀ str, st, st1, ty. unchanged(str, refs0 .first, st, st1) ∧ ¬ junkrefs(str, refs0, ty, st) → ¬ junkrefs(str, refs0, ty, st1) ⊦ r = jvmref, refs0 = [], is_referencevalue(st[r -- i ']) ∧ refs0 .first = st[r -- i '] .refval ∧ junkrefs(str, refs0, st1[r -- _type] .type .type, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 42:
st[r -- _type] = st1[r -- _type], st[r -- _length] = st1[r -- _length], refs0 .first = st[r -- i '] .refval, is_array(str, r, st1), is_array(str, r, st), i < st1[r -- _length] .intval, is_referencevalue(st[r -- i ']), junkrefs(str, refs0, st1[r -- _type] .type .type, st1), unchanged(str, r, st, st1), st1[r -- _type] .type ≤ ty, unchangedNorec(r, st, st1), is_arraytype(st1[r -- _type] .type), 0 ≤ i, 0 < st1[r -- _length] .intval, ∀ str, st, st1, ty. unchanged(str, refs0 .first, st, st1) ∧ ¬ junkrefs(str, refs0, ty, st) → ¬ junkrefs(str, refs0, ty, st1) ⊦ refs0 = [], r = jvmref, junkrefs(str, refs0, st1[r -- _type] .type .type, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]