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Proof step 43 from proof unchanged-fits (previous step)

unchanged(str, r, st, st0), is_referencevalue(st[r -- sk]), fits(st[r -- sk] .refval, sks0, st), unchanged(str, st[r -- sk] .refval, st, st0) ∧ fits(st[r -- sk] .refval, sks0, st) → junkref(str, st[r -- sk] .refval, st) ∨ fits(st[r -- sk] .refval, sks0, st0), is_classtype(st[r -- _type] .type) → sk ∈ instfields(st[r -- _type] .type .class), is_arraytype(st[r -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval ⊦ r = jvmref, junkref(str, r, st), fits(st0[r -- sk] .refval, sks0, st0) ∧ (is_arraytype(st0[r -- _type] .type) → ¬ is_fskey(sk) ∧ ¬ sk .index < 0 ∧ ¬ st0[r -- _length] .intval ≤ sk .index) ∧ (is_classtype(st0[r -- _type] .type) → sk ∈ instfields(st0[r -- _type] .type .class)) ∧ is_referencevalue(st0[r -- sk])

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 42:
unchanged(str, r, st, st0), is_referencevalue(st[r -- sk]), fits(st[r -- sk] .refval, sks0, st), is_classtype(st[r -- _type] .type) → sk ∈ instfields(st[r -- _type] .type .class), is_arraytype(st[r -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r -- _length] .intval, unchanged(str, st[r -- sk] .refval, st, st0) → junkref(str, st[r -- sk] .refval, st) ∨ fits(st[r -- sk] .refval, sks0, st0) ⊦ r = jvmref, junkref(str, r, st), fits(st0[r -- sk] .refval, sks0, st0) ∧ (is_arraytype(st0[r -- _type] .type) → ¬ is_fskey(sk) ∧ ¬ sk .index < 0 ∧ ¬ st0[r -- _length] .intval ≤ sk .index) ∧ (is_classtype(st0[r -- _type] .type) → sk ∈ instfields(st0[r -- _type] .type .class)) ∧ is_referencevalue(st0[r -- sk])

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ()]]