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Proof step 18 from proof fits-put-04 (previous step)

sk .fs = mkfs(class0, ty, fieldvar), st[r -- _type] .type = mkclasstype(class), st[r -- sk] = refval(r0), is_obj(str, r, st), is_referencevalue(st[r -- (sk ' + sks0)]), is_bytevalue(st[r1 -- fs ']), fits(r0, sks0, st), sk ∈ instfields(class), r ≠ r1 ∨ sk ≠ fs ', r ≠ r1 ∨ _type ≠ fs ', is_referencevalue(st[r0 -- sks0]) → junkref(str, r0, st) ⊦ r = jvmref, fits(r0, sks0, st[r1 -- fs ', byteval(by)]), sk .fs ' ∈ instfields(class) ∧ is_referencevalue(st[r -- sk .fs ']) ∧ st[r -- sk .fs '] .refval ≠ jvmref ∧ (¬ st[st[r -- sk .fs '] .refval -- _type] .type ≤ ty ∨ junkref(str, st[r -- sk .fs '] .refval, st))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 14:
⊦ fits(jvmref, sks, st) ↔ sks = []
Proof step 17:
st[r -- _type] .type = mkclasstype(class), st[r -- mkfs(class0, ty, fieldvar) '] = refval(r0), is_obj(str, r, st), is_referencevalue(st[r -- (mkfs(class0, ty, fieldvar) ' ' + sks0)]), is_bytevalue(st[r1 -- fs ']), fits(r0, sks0, st), mkfs(class0, ty, fieldvar) ' ∈ instfields(class), st[r0 -- _type] .type ≤ ty, r ≠ r1 ∨ mkfs(class0, ty, fieldvar) ≠ fs, r ≠ r1 ∨ _type ≠ fs ' ⊦ r = jvmref, r0 = jvmref, fits(r0, sks0, st[r1 -- fs ', byteval(by)]), junkref(str, r0, st), is_referencevalue(st[r0 -- sks0])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ refval(r) .refval = r], [CSIMPSEQ : ⊦ is_referencevalue(refval(r))], [CSIMPSEQ : ⊦ fs ' .fs = fs], [CSIMPSEQ : ⊦ fs ' = fs0 ' ↔ fs = fs0], [CSIMPSEQ : ⊦ sk ∈ instfields(class0) → ( sk .fs = mkfs(class, ty, fieldvar) ↔ sk = mkfs(class, ty, fieldvar) ')])]]