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Proof step 17 from proof validrefs-put-notin-03 (previous step)

(st[r -- sk, val][r -- mkfs(class, ty0, fieldvar) ']) = refval(r0), mkfs(class, ty0, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), is_referencevalue(st[r -- sk, val][r -- mkfs(class, ty0, fieldvar) ']), validrefs(str, r0 ' + refs1, ty0, st[r -- sk, val]), is_obj(str, r, st), is_valid_ref(r, st), is_obj(str, r, st[r -- sk, val]), st[r -- _type] .type ≤ ty ⊦ sk = _length, sk = _type, r0 = st[r -- sk] .refval, val .refval = r0, r = r0, r = jvmref, r0 ∈ refs1, dups(refs1), r ∈ refs1, ∃ fs0. fs0 ' ∈ instfields(st[r -- _type] .type .class) ∧ is_referencevalue(st[r -- fs0 ']) ∧ r0 = st[r -- fs0 '] .refval ∧ validrefs(str, st[r -- fs0 '] .refval ' + refs1, fs0 .type, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 16:
(st[r -- sk, val][r -- mkfs(class, ty0, fieldvar) ']) = refval(r0), st[r -- _type] .type ≤ ty, is_obj(str, r, st[r -- sk, val]), is_valid_ref(r, st), is_obj(str, r, st), validrefs(str, r0 ' + refs1, ty0, st[r -- sk, val]), mkfs(class, ty0, fieldvar) ' ∈ instfields(st[r -- _type] .type .class) ⊦ r = jvmref, r = r0, val .refval = r0, r0 = st[r -- sk] .refval, sk = _type, sk = _length, r ∈ refs1, dups(refs1), r0 ∈ refs1, ∃ fs0. fs0 ' ∈ instfields(st[r -- _type] .type .class) ∧ is_referencevalue(st[r -- fs0 ']) ∧ r0 = st[r -- fs0 '] .refval ∧ validrefs(str, st[r -- fs0 '] .refval ' + refs1, fs0 .type, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPNAMEDSEQ : javavalue, , test-19, ⊦ is_referencevalue(refval(r))])]]