Goal:
  
  G : t
  HI : invariants G
  HG : acyclic_no_loop G
  x : V.t
  z : Z
  p : SPath G (V G) x (s G)
  wp : sweight p = z
  H0 : ~ VSet.In x (V G)
  ============================
   (z = 0)


DEBUG:Going to execute:
try intros until H; intro_block H;
            (try simpl in H; DepElim.simplify_equations_in H);
            DepElim.generalize_by_eqs_vars H; CoreTactics.block_goal; 
            tac H; CoreTactics.intros_until_block; DepElim.simpl_dep_elim
Level 3: evaluation returns
try intros until H; intro_block H;
 (try simpl in H; DepElim.simplify_equations_in H);
 DepElim.generalize_by_eqs_vars H; CoreTactics.block_goal; 
 tac H; CoreTactics.intros_until_block; DepElim.simpl_dep_elim;
 CoreTactics.unblock_goal
where
tac := fun hyp => DepElim.do_ind hyp
       where
       id := p
       of type
       constr
of type
tacvalue
H := p
of type
constr of type tacvalue

Level 2: evaluation returns
try intros until H; intro_block H;
 (try simpl in H; DepElim.simplify_equations_in H);
 DepElim.generalize_by_eqs_vars H; CoreTactics.block_goal; 
 tac H; CoreTactics.intros_until_block; DepElim.simpl_dep_elim;
 CoreTactics.unblock_goal
where
tac := fun hyp => DepElim.do_ind hyp
       where
       id := p
       of type
       constr
of type
tacvalue
H := p
of type
constr of type tacvalue

Level 1: evaluation returns
try intros until H; intro_block H;
 (try simpl in H; DepElim.simplify_equations_in H);
 DepElim.generalize_by_eqs_vars H; CoreTactics.block_goal; 
 tac H; CoreTactics.intros_until_block; DepElim.simpl_dep_elim;
 CoreTactics.unblock_goal
where
tac := fun hyp => DepElim.do_ind hyp
       where
       id := p
       of type
       constr
of type
tacvalue
H := p
of type
constr of type tacvalue