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Proof step 16 from proof sharing-pathex-field-self (previous step)

st[r0 -- fs '] = refval(r0), is_classtype(st[r0 -- _type] .type), fs ' ∈ instfields(st[r0 -- _type] .type .class), validrefs(`docs2store', r0 ', mkclasstype(`java.lang.Object' .class), st) ⊦ r0 = jvmref, hasSharing(r0, st)

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 2:
⊦ validrefs(str, r ', ty, st) ↔ r = jvmref ∨ r ≠ jvmref ∧ is_valid_ref(str, r, st) ∧ st[r -- _type] .type ≤ ty
Proof step 15:
st[r0 -- fs '] = refval(r0), is_classtype(st[r0 -- _type] .type), fs ' ∈ instfields(st[r0 -- _type] .type .class), r0 = jvmref ∨ r0 ≠ jvmref ∧ is_valid_ref(`docs2store', r0, st) ∧ st[r0 -- _type] .type ≤ mkclasstype(`java.lang.Object' .class) ⊦ r0 = jvmref, hasSharing(r0, st)

Rule argument

[speclemmaarg: , validrefs(str, r ', ty, st) ↔ r = jvmref ∨ r ≠ jvmref ∧ is_valid_ref(str, r, st) ∧ st[r -- _type] .type ≤ ty ,[st, ty, r, str] → [st, mkclasstype(`java.lang.Object' .class), r0, `docs2store'] ,F ,cyclic , ,validrefs-one ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, mkclasstype(`java.lang.Object' .class), r0, `docs2store')]]