Goal:
    G : t  y_0 : V.t  x_0 : V.t  K : Z  s0 : VSet.t  x : V.t
  ============================
   (sweight (sto_G' (spath_refl G s0 x)) = sweight (spath_refl G s0 x))


DEBUG:Going to execute:
fun => <coq-core.plugins.ltac::reflexivity@0>