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Proof step 4 from proof sharing-twopaths (previous step)

st[r -- sks] = refval(r0) ∧ is_referencevalue(st[r -- sks]), r0 = st[r -- sks0] .refval, fits(r, sks0, st), fits(r, sks, st), validrefs(str, st[r -- sks0] .refval ', mkclasstype(`java.lang.Object' .class), st) ⊦ r = jvmref, sks = sks0, sks = [], sks0 = [], st[r -- sks0] .refval = jvmref, st[r -- sks] = st[r -- sks0], sks ⊑ sks0

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
st[r -- sks] = refval(st[r -- sks0] .refval), validrefs(str, st[r -- sks0] .refval ', mkclasstype(`java.lang.Object' .class), st), fits(r, sks, st), fits(r, sks0, st) ⊦ refval(st[r -- sks0] .refval) = st[r -- sks0], st[r -- sks0] .refval = jvmref, sks0 = [], sks = [], sks = sks0, r = jvmref, sks ⊑ sks0

Rule argument

[emptyarg]

Additional information

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