for (i = start; i <= end; i++) {
xbt_assert1(!xbt_dict_get_or_null(random_value,random_id),"Custom Random '%s' already exists !",bprintf("%s%d",random_id,i));
res = random_generate(random);
for (i = start; i <= end; i++) {
xbt_assert1(!xbt_dict_get_or_null(random_value,random_id),"Custom Random '%s' already exists !",bprintf("%s%d",random_id,i));
res = random_generate(random);