| is_referencevalue(st[rk]) ∧ validrefnotnull(str, st[rk] .refval, ty, st), rk ∈ st, is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ r = jvmref, mkfs(class, byte_type, fieldvar) ' = _length, is_referencevalue(st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) ∧ validrefnotnull (str, (st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) .refval, ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)]) |
⊦ validrefnotnull(str, r, ty, st) → r ≠ jvmref
is_referencevalue(st[rk]), validrefnotnull(str, st[rk] .refval, ty, st), rk ∈ st, is_bytevalue(st[r -- mkfs(class, byte_type, fieldvar) ']) ⊦ r = jvmref, mkfs(class, byte_type, fieldvar) ' = _length, st[rk] .refval = jvmref, is_referencevalue(st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) ∧ validrefnotnull (str, (st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)][rk]) .refval, ty, st[r -- mkfs(class, byte_type, fieldvar) ', byteval(by)])
[[CONCRETESIMPRULES : ()]]