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Proof step 9 from proof hasSharing-dups-object (previous step)

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, st[r -- sk] .refval = jvmref, fits(r, sk ', st) ∧ fits(r, sk0 ', st) ∧ sk ' ≠ sk0 ' ∧ sk ' ≠ [] ∧ sk0 ' ≠ [] ∧ st[r -- sk '] .refval ≠ jvmref ∧ st[r -- sk '] = st[r -- sk0 ']

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 8:
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, st[r -- sk] .refval = jvmref, fits(r, sk ', st) ∧ fits(r, sk0 ', st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ st[r -- sk '] = st[r -- sk]], [CSIMPSEQ : ⊦ sk ' ≠ []], [CSIMPSEQ : ⊦ sk ' = sk0 ' ↔ sk = sk0])]]