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Proof step 7 from proof hasSharing-dups-object (previous step)

st[r -- sk] = refval(r0), st[r -- sk0] = st[r -- sk], st[r -- _type] .type = mkclasstype(class), is_referencevalue(st[r -- sk]), sk ∈ instfields(class), sk0 ∈ instfields(class) ⊦ r = jvmref, sk0 = sk, r0 = jvmref, fits(r, sk ', st) ∧ fits(r, sk0 ', st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 6:
st[r -- _type] .type = mkclasstype(class), st[r -- sk0] = refval(r0), st[r -- sk] = refval(r0), sk0 ∈ instfields(class), sk ∈ instfields(class) ⊦ r0 = jvmref, sk0 = sk, r = jvmref, fits(r, sk ', st) ∧ fits(r, sk0 ', st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_referencevalue(refval(r))])]]