| _type = fs ', st[r1 -- sk] = refval(r0), is_valid_ref(str, r1, st), fits(r0, sks0, st), is_shortvalue(st[r1 -- _type]), ∀ r, st, r1, fs, str, sho. fits(r, sks0, st) ∧ is_shortvalue(st[r1 -- fs ']) → junkref(str, r, st) ∨ fits(r, sks0, st[r1 -- fs ', shortval(sho)]), is_arraytype(st[r1 -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r1 -- _length] .intval, is_classtype(st[r1 -- _type] .type) → sk ∈ instfields(st[r1 -- _type] .type .class) ⊦ r1 = jvmref, junkref(str, r1, st), fits((st[r1 -- _type, shortval(sho)][r1 -- sk]) .refval, sks0, st[r1 -- _type, shortval(sho)]) ∧ (is_arraytype(shortval(sho) .type) → ¬ is_fskey(sk) ∧ ¬ sk .index < 0 ∧ ¬ (st[r1 -- _type, shortval(sho)][r1 -- _length]) .intval ≤ sk .index) ∧ (is_classtype(shortval(sho) .type) → sk ∈ instfields(shortval(sho) .type .class)) ∧ is_referencevalue(st[r1 -- _type, shortval(sho)][r1 -- sk]) |
⊦ ¬ is_typevalue(st[r -- _type]) → ¬ is_valid_ref(str, r, st)
¬ ¬ is_typevalue(st[r1 -- _type]), _type = fs ', st[r1 -- sk] = refval(r0), is_valid_ref(str, r1, st), fits(r0, sks0, st), is_shortvalue(st[r1 -- _type]), ∀ r, st, r1, fs, str, sho. fits(r, sks0, st) ∧ is_shortvalue(st[r1 -- fs ']) → junkref(str, r, st) ∨ fits(r, sks0, st[r1 -- fs ', shortval(sho)]), is_arraytype(st[r1 -- _type] .type) → is_indexkey(sk) ∧ 0 ≤ sk .index ∧ sk .index < st[r1 -- _length] .intval, is_classtype(st[r1 -- _type] .type) → sk ∈ instfields(st[r1 -- _type] .type .class) ⊦ r1 = jvmref, junkref(str, r1, st), fits((st[r1 -- _type, shortval(sho)][r1 -- sk]) .refval, sks0, st[r1 -- _type, shortval(sho)]) ∧ (is_arraytype(shortval(sho) .type) → ¬ is_fskey(sk) ∧ ¬ sk .index < 0 ∧ ¬ (st[r1 -- _type, shortval(sho)][r1 -- _length]) .intval ≤ sk .index) ∧ (is_classtype(shortval(sho) .type) → sk ∈ instfields(shortval(sho) .type .class)) ∧ is_referencevalue(st[r1 -- _type, shortval(sho)][r1 -- sk])
[[CONCRETESIMPRULES : ()], [EXTRATERMS : (st, r1, str)]]