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add option to validate result of PDR. Add PDR tactic. Add fixedpoint parsing

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2012-11-17 20:47:49 +01:00
parent 68ae5d434c
commit 50385e7e29
32 changed files with 836 additions and 393 deletions
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23
src/muz_qe/dl_context.h
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@ -184,7 +184,7 @@ namespace datalog {
void register_variable(func_decl* var);
app_ref_vector const& get_variables() const { return m_vars; }
expr_ref bind_variables(expr* fml, bool is_forall);
/**
Register datalog relation.
@ -242,7 +242,7 @@ namespace datalog {
symbol get_argument_name(const func_decl * pred, unsigned arg_index);
void set_predicate_representation(func_decl * pred, unsigned relation_name_cnt,
symbol * const relation_names);
symbol const * relation_names);
void set_output_predicate(func_decl * pred);
bool is_output_predicate(func_decl * pred) { return m_output_preds.contains(pred); }
@ -383,6 +383,21 @@ namespace datalog {
lbool query(expr* q);
/**
\brief retrieve model from inductive invariant that shows query is unsat.
\pre engine == 'pdr' - this option is only supported for PDR mode.
*/
model_ref get_model();
/**
\brief retrieve proof from derivation of the query.
\pre engine == 'pdr' - this option is only supported for PDR mode.
*/
proof_ref get_proof();
/**
Query multiple output relations.
*/
@ -411,7 +426,9 @@ namespace datalog {
expr* get_answer_as_formula();
void collect_statistics(statistics& st);
void collect_statistics(statistics& st) const;
void reset_statistics();
/**
\brief Display a certificate for reachability and/or unreachability.