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Proof step 18 from proof cyclic-pseq (previous step)

st[r2 -- _type] = st1[r1 -- _type], st1[r1 -- _type] .type = mkclasstype(class), r2 = st[r2 -- fs '] .refval, maxpath(str, r1, st1) ≤ maxpath(str, st1[r1 -- fs '] .refval, st1), ps=(r2, st, st1[r1 -- fs '] .refval, st1), is_referencevalue(st[r2 -- fs ']), fs ' ∈ instfields(class), is_obj(str, r1, st1), is_obj(str, r2, st), validrefs(str, r2 ', fs .type, st), ∀ fs. fs ' ∈ instfields(class) ∧ ¬ is_referencevalue(st[r2 -- fs ']) → st[r2 -- fs '] = st1[r1 -- fs '], ∀ st, r, st0, r0, str0. maxpath(str0, r0, st0) < maxpath(str, r1, st1) → (ps=(r, st, r0, st0) ∧ cyclic(str0, r, st) → junkref(str0, r, st) ∨ junkref(str0, r0, st0) ∨ cyclic(str0, r0, st0)) ⊦ r1 = jvmref, r2 = jvmref, st1[r1 -- fs '] = refval(st1[r1 -- fs '] .refval), junkref(str, r2, st), junkref(str, r1, st1), cyclic(str, r1, st1)

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

[speclemmaarg: ,is_referencevalue(val) → refval(val .refval) = val ,[val] → [st1[r1 -- fs ']] ,F ,javavalue , ,refva-sel ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st1[r1 -- fs '])]]