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Proof step 16 from proof fits-put-short-01 (previous step)

sk .fs = mkfs(class0, ty, fieldvar), st[r -- _type] .type = mkclasstype(class), (st[r1 -- fs ', shortval(sho)][r -- sk]) = refval(r0), is_obj(str, r, st), is_shortvalue(st[r1 -- fs ']), fits(r0, sks0, st[r1 -- fs ', shortval(sho)]), sk ∈ instfields(class), r ≠ r1 ∨ _type ≠ fs ', junkref(str, r0, st) ∨ fits(r0, sks0, st) ⊦ r = jvmref, fits(st[r -- sk] .refval, sks0, st) ∧ is_referencevalue(st[r -- sk]), 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 15:
(st[r1 -- fs ', shortval(sho)][r -- mkfs(class0, ty, fieldvar) ']) = refval(r0), st[r -- _type] .type = mkclasstype(class), mkfs(class0, ty, fieldvar) ' ∈ instfields(class), fits(r0, sks0, st[r1 -- fs ', shortval(sho)]), is_shortvalue(st[r1 -- fs ']), is_obj(str, r, st), junkref(str, r0, st) ∨ fits(r0, sks0, st), r ≠ r1 ∨ _type ≠ fs ' ⊦ r = jvmref, fits(st[r -- mkfs(class0, ty, fieldvar) '] .refval, sks0, st) ∧ is_referencevalue(st[r -- mkfs(class0, ty, fieldvar) ']), is_referencevalue(st[r -- mkfs(class0, ty, fieldvar) ']) ∧ st[r -- mkfs(class0, ty, fieldvar) '] .refval ≠ jvmref ∧ (¬ st[st[r -- mkfs(class0, ty, fieldvar) '] .refval -- _type] .type ≤ ty ∨ junkref(str, st[r -- mkfs(class0, ty, fieldvar) '] .refval, st))

Rule argument

[emptyarg]

Additional information

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