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Proof step 18 from proof fits-put-05 (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

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