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Proof step 15 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), r0 = jvmref ∨ r0 ≠ jvmref ∧ is_valid_ref(`docs2store', r0, st) ∧ st[r0 -- _type] .type ≤ mkclasstype(`java.lang.Object' .class) ⊦ r0 = jvmref, hasSharing(r0, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 14:
st[r0 -- fs '] = refval(r0), is_classtype(st[r0 -- _type] .type), fs ' ∈ instfields(st[r0 -- _type] .type .class), is_valid_ref(`docs2store', r0, st) ⊦ r0 = jvmref, hasSharing(r0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_valid_ref(str, r, st) ∧ r ≠ jvmref → st[r -- _type] .type ≤ mkclasstype (`java.lang.Object' .class)])]]