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add Karr linear invariants as transformer

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2013-03-10 17:53:18 -07:00
parent 3810374cdd
commit ab73c20757
14 changed files with 830 additions and 56 deletions
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25
src/muz_qe/dl_rule_transformer.h
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@ -28,6 +28,8 @@ Revision History:
namespace datalog {
class context;
class rule_transformer {
public:
class plugin;
@ -37,9 +39,10 @@ namespace datalog {
typedef svector<plugin*> plugin_vector;
struct plugin_comparator;
context & m_context;
rule_manager & m_rule_manager;
bool m_dirty;
context & m_context;
rule_manager & m_rule_manager;
bool m_dirty;
volatile bool m_cancel;
svector<plugin*> m_plugins;
void ensure_ordered();
@ -47,6 +50,13 @@ namespace datalog {
rule_transformer(context & ctx);
~rule_transformer();
/**
\brief Reset all registered transformers.
*/
void reset();
void cancel();
/**
\brief Add a plugin for rule transformation.
@ -72,6 +82,8 @@ namespace datalog {
void attach(rule_transformer & transformer) { m_transformer = &transformer; }
protected:
volatile bool m_cancel;
/**
\brief Create a plugin object for rule_transformer.
@ -79,7 +91,8 @@ namespace datalog {
(higher priority plugins will be applied first).
*/
plugin(unsigned priority, bool can_destratify_negation = false) : m_priority(priority),
m_can_destratify_negation(can_destratify_negation), m_transformer(0) {}
m_can_destratify_negation(can_destratify_negation), m_transformer(0), m_cancel(false) {}
public:
virtual ~plugin() {}
@ -96,8 +109,10 @@ namespace datalog {
model_converter_ref& mc,
proof_converter_ref& pc) = 0;
virtual void cancel() { m_cancel = true; }
/**
Removes duplicate tails.
Removes duplicate tails.
*/
static void remove_duplicate_tails(app_ref_vector& tail, svector<bool>& tail_neg);