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Proof step 18 from proof fits-put-short-02 (previous step)

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

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 17:
st[r -- sk] = refval(r0), st[r -- _type] .type = mkclasstype(class), junkref(str, r0, st), sk ∈ instfields(class), fits(r0, sks0, st), is_shortvalue(st[r1 -- fs ']), is_obj(str, r, st), r ≠ r1 ∨ _type ≠ fs ', r ≠ r1 ∨ sk ≠ fs ' ⊦ r = jvmref, fits(r0, sks0, st[r1 -- fs ', shortval(sho)]), ∃ fs0. fs0 ' ∈ instfields(class) ∧ is_referencevalue(st[r -- fs0 ']) ∧ st[r -- fs0 '] .refval ≠ jvmref ∧ (¬ st[st[r -- fs0 '] .refval -- _type] .type ≤ fs0 .type ∨ junkref(str, st[r -- fs0 '] .refval, st))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ mkclasstype(class) .class = class])]]