After init:
SV = RV(0x238c18) at 0x238c0c
  REFCNT = 1
  FLAGS = (TEMP,ROK)
  RV = 0x182a68c
  SV = PVAV(0x2399f4) at 0x182a68c
    REFCNT = 2
    FLAGS = (PADMY)
    ARRAY = 0x1824504
    FILL = 2
    MAX = 3
    ARYLEN = 0x0
    FLAGS = (REAL)

After AvMAX:
SV = RV(0x238c18) at 0x238c0c
  REFCNT = 1
  FLAGS = (TEMP,ROK)
  RV = 0x182a68c
  SV = PVAV(0x2399f4) at 0x182a68c
    REFCNT = 2
    FLAGS = (PADMY)
    ARRAY = 0x1824504
    FILL = 2
    MAX = 3
    ARYLEN = 0x0
    FLAGS = (REAL)

After AvARRAY:
SV = RV(0x238c18) at 0x238c0c
  REFCNT = 1
  FLAGS = (TEMP,ROK)
  RV = 0x182a68c
  SV = PVAV(0x2399f4) at 0x182a68c
    REFCNT = 2
    FLAGS = (PADMY)
    ARRAY = 0x1824504
    FILL = 2
    MAX = 3
    ARYLEN = 0x0
    FLAGS = (REAL)

After AvALLOC:
SV = RV(0x238c18) at 0x238c0c
  REFCNT = 1
  FLAGS = (TEMP,ROK)
  RV = 0x182a68c
  SV = PVAV(0x2399f4) at 0x182a68c
    REFCNT = 2
    FLAGS = (PADMY)
    ARRAY = 0x1824504
    FILL = 2
    MAX = 3
    ARYLEN = 0x0
    FLAGS = (REAL)

After AvARYLEN:
SV = RV(0x238c18) at 0x238c0c
  REFCNT = 1
  FLAGS = (TEMP,ROK)
  RV = 0x182a68c
  SV = PVAV(0x2399f4) at 0x182a68c
    REFCNT = 2
    FLAGS = (PADMY,RMG)
    MAGIC = 0x23fdbc
      MG_VIRTUAL = &PL_vtbl_arylen_p
      MG_TYPE = PERL_MAGIC_arylen_p(@)
      MG_FLAGS = 0x02
        REFCOUNTED
    ARRAY = 0x1824504
    FILL = 2
    MAX = 3
    ARYLEN = 0x0
    FLAGS = (REAL)