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include chronological backtracking, two-phase sat, xor inprocessing, probsat, ddfw

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-06-13 03:34:31 -07:00
parent 46d23ea8d7
commit d17248821a
32 changed files with 3246 additions and 654 deletions
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19
src/sat/sat_lookahead.h
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@ -20,9 +20,9 @@ Notes:
#ifndef _SAT_LOOKAHEAD_H_
#define _SAT_LOOKAHEAD_H_
// #define OLD_NARY 0
#include "sat_elim_eqs.h"
#include "util/small_object_allocator.h"
#include "sat/sat_elim_eqs.h"
namespace sat {
@ -247,6 +247,7 @@ namespace sat {
stats m_stats;
model m_model;
cube_state m_cube_state;
unsigned m_max_ops; // cap number of operations used to compute lookahead reward.
//scoped_ptr<extension> m_ext;
// ---------------------------------------
@ -510,6 +511,7 @@ namespace sat {
void propagate_binary(literal l);
void propagate();
literal choose();
literal choose_base();
void compute_lookahead_reward();
literal select_literal();
void update_binary_clause_reward(literal l1, literal l2);
@ -605,6 +607,13 @@ namespace sat {
std::ostream& display(std::ostream& out) const;
std::ostream& display_summary(std::ostream& out) const;
/**
\brief display lookahead scores as a sequence of:
<variable_id:uint> <true_branch_score:double> <false_branch_score:double>\n
*/
void display_lookahead_scores(std::ostream& out);
model const& get_model();
void collect_statistics(statistics& st) const;
@ -612,6 +621,12 @@ namespace sat {
double literal_occs(literal l);
double literal_big_occs(literal l);
/**
\brief retrieve clauses as one vector of literals.
clauses are separated by null-literal
*/
void get_clauses(literal_vector& clauses, unsigned max_clause_size);
sat::config const& get_config() const { return m_s.get_config(); }
};