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Proof step 9 from proof junkref-put-null (previous step)

is_reftype(ty), junkrefs (str, r ' + refs0, (st[r0 -- mkfs(class, ty, fieldvar) ', refval(jvmref)][r -- _type]) .type, st[r0 -- mkfs(class, ty, fieldvar) ', refval(jvmref)]) ⊦ junkref(str, r, st)

Heuristic weak cut applied rule cut formula

And obtained the following new goals

Proof step 8:
is_reftype(ty), junkrefs (str, r ' + refs0, (st[r0 -- mkfs(class, ty, fieldvar) ', refval(jvmref)][r -- _type]) .type, st[r0 -- mkfs(class, ty, fieldvar) ', refval(jvmref)]) ⊦ r -- _type = r0 -- mkfs(class, ty, fieldvar) ', junkref(str, r, st)

Rule argument

[fma-arg: r -- _type = r0 -- mkfs(class, ty, fieldvar) ']

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ r -- sk = r0 -- sk0 ↔ r = r0 ∧ sk = sk0], [CSIMPFORWARD : ⊦ _type = mkfs(class1, ty, fieldvar) ' → class1 = `java.lang.Object' .class ∧ ty = void_type ∧ fieldvar = `type' .field], [CSIMPSEQ : ⊦ mkfs (`java.lang.Object' .class, void_type, `type' .field) ' = _type], [CSIMPSEQ : ⊦ (st[rk, val][rk]) = val], [CSIMPSEQ : ⊦ ¬ is_reftype(void_type)])], [EXTRAFMAS : (r -- _type = r0 -- mkfs(class, ty, fieldvar) ')]]