%%%[(1,[(b,0),(c,0)])]
%%% 'ASP_to_CHR'([(a:-not(b)),(b:-c),(c:-b),(c:-d),d],'test_20',all_answer_sets,'no_data')
:- use_module(library(chr)).
:- chr_constraint success/0, failure/0, supported_1/0, exclusion_1/0, supported_2/0, supported_3/0, supported_4/0, launcher/0, next_it/1, cfc/1, clean_result/0, d/0, c/0, a/0, b/0, out_b/0.
success <=> true.
failure <=> fail.
c # passive \ c <=> true.
a # passive \ a <=> true.
b # passive \ b <=> true.

b,out_b <=> fail.


%% a:-not(b)
unuseful_1 @ a \ supported_1<=>
   success.
propagate_1 @ out_b \ supported_1<=>
   a.
blocked_1 @ b \ supported_1<=>
   success.
exclusion_1 @ out_b,exclusion_1<=>
   failure.
clean_exclusion_1 @ b \ exclusion_1<=>
   success.

%% c:-d
propagate_2 @ d==>
   c.

%% c:-b
propagate_3 @ b==>
   c.

%% b:-c
propagate_4 @ c==>
   b.
choice_1 @ next_it(X_0),supported_1 # passive <=>
   X_1 is X_0*2, out_b,a,next_it(X_1) ; X_1 is X_0*2+1, exclusion_1,next_it(X_1).




next_it(_Profondeur), exclusion_1# passive <=> fail.

success @ next_it(_Profondeur) <=> clean_result, chr_show_store(user),  write("--"), nl, fail.

launcher <=> d, 
   supported_1,
   next_it(0).

clean_result, out_b # passive <=> clean_result.
clean_result <=> true.




