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Proof step 21 from proof fits-put-05-stronger (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 20:
(st[r1 -- fs ', byteval(by)][r -- sk]) = refval(r0), st[r -- _type] .type = mkclasstype(class), sk ∈ instfields(class), fits(r0, sks0, st[r1 -- fs ', byteval(by)]), is_bytevalue(st[r1 -- fs ']), is_obj(str, r, st), junkref(str, r0, st) ∨ fits(r0, sks0, st), r ≠ r1 ∨ _type ≠ fs ' ⊦ r = jvmref, junkref(str, r, st), is_referencevalue(st[r -- sk]) ∧ fits(st[r -- sk] .refval, sks0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ is_classtype(mkclasstype(class))])]]