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Proof step 11 from proof junkrefs-null-01 (previous step)

st[r -- mkfs(class, ty1, fieldvar) '] = refval(r0), is_obj(str, r, st), st[r -- _type] .type ≤ ty, junkrefs(str, (r0 ' + refs) + jvmref ' + refs0, ty1, st), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), ∀ str0, refs1, ty0, st0. junkrefs(str0, (r0 ' + refs) + jvmref ' + refs1, ty0, st0) ↔ junkrefs(str0, r0 ' + refs, ty0, st0) ⊦ r = jvmref, ∃ fs0. fs0 ' ∈ instfields(st[r -- _type] .type .class) ∧ is_referencevalue(st[r -- fs0 ']) ∧ r0 = st[r -- fs0 '] .refval ∧ junkrefs(str, st[r -- fs0 '] .refval ' + refs, fs0 .type, st)

User applied rule exists right

And obtained the following new goals

Proof step 10:
st[r -- mkfs(class, ty1, fieldvar) '] = refval(r0), is_obj(str, r, st), st[r -- _type] .type ≤ ty, junkrefs(str, (r0 ' + refs) + jvmref ' + refs0, ty1, st), mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class), ∀ str0, refs1, ty0, st0. junkrefs(str0, (r0 ' + refs) + jvmref ' + refs1, ty0, st0) ↔ junkrefs(str0, r0 ' + refs, ty0, st0) ⊦ r = jvmref, mkfs(class, ty1, fieldvar) ' ∈ instfields(st[r -- _type] .type .class) ∧ is_referencevalue(st[r -- mkfs(class, ty1, fieldvar) ']) ∧ r0 = st[r -- mkfs(class, ty1, fieldvar) '] .refval ∧ junkrefs(str, st[r -- mkfs(class, ty1, fieldvar) '] .refval ' + refs, mkfs(class, ty1, fieldvar) .type, st)

Rule argument

[EXRARG : pos: right 2, [extquanttermlist: (mkfs(class, ty1, fieldvar)) abort:F , discard:T , computed:T ]]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (mkfs(class, ty1, fieldvar))]]