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Proof step 12 from proof validrefs-maxlen (previous step)

st[r -- mkfs(class, ty1, fieldvar) '] = refval(r0), validrefs(str, r0 ' + refs, ty1, st), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), st[r -- _type] .type ≤ ty, # st .refs ≤ # refs, is_obj(str, r, st), validrefs(str, r0 ' + refs, ty1, st -- r) → # refs ≤ # (st -- r) .refs ⊦ r = r0, r = jvmref, r ∈ refs, r0 ∈ refs, dups(refs)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 11:
st[r -- mkfs(class, ty1, fieldvar) '] = refval(r0), validrefs(str, r0 ' + refs, ty1, st), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), st[r -- _type] .type ≤ ty, # st .refs ≤ # refs, is_obj(str, r, st), validrefs(str, r0 ' + refs, ty1, st -- r) → # refs ≤ # (st .refs -- r) ⊦ r = r0, r = jvmref, r ∈ refs, r0 ∈ refs, dups(refs)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ (st -- r) .refs = st .refs -- r])]]