module type S = sig
.. end
This is what is really needed to propagate something through the CFG.
Usually, the propagated thing should be a predicate,
but it can be more sophisticated like lists of predicates,
or maybe a structure to keep hypotheses and goals separated.
Moreover, proof obligations may also need to be handeled.
type
t_env
type
t_prop
val pretty : Format.formatter -> t_prop -> unit
val merge : t_env -> t_prop -> t_prop -> t_prop
val empty : t_prop
val new_env : ?lvars:Cil_types.logic_var list ->
Cil_types.kernel_function -> t_env
optionally init env with user logic variables
val add_axiom : Wp.WpPropId.prop_id -> Wp.LogicUsage.logic_lemma -> unit
val add_hyp : t_env ->
Wp.WpPropId.pred_info -> t_prop -> t_prop
val add_goal : t_env ->
Wp.WpPropId.pred_info -> t_prop -> t_prop
val add_assigns : t_env ->
Wp.WpPropId.assigns_info -> t_prop -> t_prop
val use_assigns : t_env ->
Cil_types.stmt option ->
Wp.WpPropId.prop_id option ->
Wp.WpPropId.assigns_desc -> t_prop -> t_prop
use_assigns env hid kind assgn goal
performs the havoc on the goal.
hid
should be None
iff assgn
is WritesAny
,
and tied to the corresponding identified_property otherwise.
val label : t_env -> Wp.Clabels.c_label -> t_prop -> t_prop
val assign : t_env ->
Cil_types.stmt ->
Cil_types.lval -> Cil_types.exp -> t_prop -> t_prop
val return : t_env ->
Cil_types.stmt ->
Cil_types.exp option -> t_prop -> t_prop
val test : t_env ->
Cil_types.stmt ->
Cil_types.exp -> t_prop -> t_prop -> t_prop
val switch : t_env ->
Cil_types.stmt ->
Cil_types.exp ->
(Cil_types.exp list * t_prop) list ->
t_prop -> t_prop
val has_init : t_env -> bool
val init_value : t_env ->
Cil_types.lval ->
Cil_types.typ -> Cil_types.exp option -> t_prop -> t_prop
init_value env lv t v_opt wp:
put value of type t (or default if None) in lv
val init_range : t_env ->
Cil_types.lval ->
Cil_types.typ ->
Integer.t ->
Integer.t -> Cil_types.exp option -> t_prop -> t_prop
init_range env lv t_elt a b wp :
put default values of type t_elt in lvk
with a <= k < b
val init_const : t_env -> Cil_types.varinfo -> t_prop -> t_prop
the (entire) variable has its initial value
val loop_entry : t_prop -> t_prop
val loop_step : t_prop -> t_prop
val call_dynamic : t_env ->
Cil_types.stmt ->
Wp.WpPropId.prop_id ->
Cil_types.exp ->
(Cil_types.kernel_function * t_prop) list -> t_prop
val call_goal_precond : t_env ->
Cil_types.stmt ->
Cil_types.kernel_function ->
Cil_types.exp list ->
pre:Wp.WpPropId.pred_info list -> t_prop -> t_prop
val call : t_env ->
Cil_types.stmt ->
Cil_types.lval option ->
Cil_types.kernel_function ->
Cil_types.exp list ->
pre:Wp.WpPropId.pred_info list ->
post:Wp.WpPropId.pred_info list ->
pexit:Wp.WpPropId.pred_info list ->
assigns:Cil_types.identified_term Cil_types.assigns ->
p_post:t_prop -> p_exit:t_prop -> t_prop
val scope : t_env ->
Cil_types.varinfo list ->
Wp.Mcfg.scope -> t_prop -> t_prop
val close : t_env -> t_prop -> t_prop
val build_prop_of_from : t_env ->
Wp.WpPropId.pred_info list -> t_prop -> t_prop
build p => alpha(p)
for functional dependencies verification.