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Proof step 11 from proof nosharing-forward (previous step)

st[jvmref -- sks0] = refval(r0), st[r -- _type] .type = mkclasstype(class), st[jvmref -- sks] = refval(r0), fits(jvmref, sks, st), fits(jvmref, sks0, st), validref(str, r, ty, st), fs ' ∈ instfields(class) ⊦ r = jvmref, sks0 = sks, sks0 = [], sks = [], r0 = jvmref, is_referencevalue(st[r -- fs '])

User applied rule insert spec-lemma

And obtained the following new goals

Proof step 5:
⊦ r ≠ jvmref ∧ validref(str, r, mkclasstype(class), st0) ∧ fs ' ∈ instfields(class) ∧ is_reftype(fs .type) → validref(str, st0[r -- fs '] .refval, fs .type, st0)
Proof step 10:
r ≠ jvmref ∧ validref(str, r, mkclasstype(class), st) ∧ fs ' ∈ instfields(class) ∧ is_reftype(fs .type) → validref(str, st[r -- fs '] .refval, fs .type, st), st[jvmref -- sks0] = refval(r0), st[r -- _type] .type = mkclasstype(class), st[jvmref -- sks] = refval(r0), fits(jvmref, sks, st), fits(jvmref, sks0, st), validref(str, r, ty, st), fs ' ∈ instfields(class) ⊦ r = jvmref, sks0 = sks, sks0 = [], sks = [], r0 = jvmref, is_referencevalue(st[r -- fs '])

Rule argument

[speclemmaarg: , r ≠ jvmref ∧ validref(str, r, mkclasstype(class), st0) ∧ fs ' ∈ instfields(class) ∧ is_reftype(fs .type) → validref(str, st0[r -- fs '] .refval, fs .type, st0) ,[r, str, class, st0, fs] → [r, str, class, st, fs] ,F ,junkrefs , ,validref-forward ]

Additional information

[[CONCRETESIMPRULES : ()], [EXTRATERMS : (r, str, class, st, fs)]]