== foo ==
fun foo(a: Array<Int>) {
    a[0] += 1
}
---------------------
L0:
  1 <START>
    v(a: Array<Int>)
    magic[FAKE_INITIALIZER](a: Array<Int>) -> <v0>
    w(a|<v0>)
  2 mark({ a[0] += 1 })
    mark(a[0])
    r(a) -> <v1>
    r(0) -> <v2>
    mark(a[0])
    call(a[0], get|<v1>, <v2>) -> <v3>
    r(1) -> <v4>
    mark(a[0] += 1)
    call(a[0] += 1, plus|<v3>, <v4>) -> <v5>
    r(a) -> <v6>
    r(0) -> <v7>
    call(a[0] += 1, set|<v6>, <v7>, <v5>) -> <v8>
L1:
  1 <END>                                             NEXT:[<SINK>]
error:
    <ERROR>                                           PREV:[]
sink:
    <SINK>                                            PREV:[<ERROR>, <END>]
=====================