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add py_value to selected classes in python bindings, add mode for input-assertion based lookahead solving

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Nikolaj Bjorner 2025-01-04 13:40:49 -08:00
parent 7e4681d836
commit 05f166f736
18 changed files with 374 additions and 184 deletions
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59
src/ast/sls/sls_bv_lookahead.h
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@ -46,6 +46,7 @@ namespace sls {
double ucb_forget = 0.1;
bool ucb_init = false;
double ucb_noise = 0.1;
bool use_top_level_assertions = true;
};
struct stats {
@ -78,7 +79,7 @@ namespace sls {
expr* m_best_expr = nullptr;
expr* m_last_atom = nullptr;
ptr_vector<expr> m_empty_vars;
obj_map<expr, bool_info> m_bool_info;
vector<bool_info> m_bool_info;
expr_mark m_is_root;
unsigned m_touched = 1;
@ -92,9 +93,10 @@ namespace sls {
bool_info& get_bool_info(expr* e);
double lookahead_update(expr* u, bvect const& new_value);
double old_score(app* c) { return get_bool_info(c).score; }
void set_score(app* c, double d) { get_bool_info(c).score = d; }
double new_score(app* c);
double old_score(expr* c) { return get_bool_info(c).score; }
void set_score(expr* c, double d) { get_bool_info(c).score = d; }
double new_score(expr* c, bool is_true);
double new_score(expr* c);
double lookahead_flip(sat::bool_var v);
@ -107,9 +109,9 @@ namespace sls {
bool is_root(expr* e) { return m_is_root.is_marked(e); }
void ucb_forget();
unsigned get_touched(app* e) { return get_bool_info(e).touched; }
void set_touched(app* e, unsigned t) { get_bool_info(e).touched = t; }
void inc_touched(app* e) { ++get_bool_info(e).touched; }
unsigned get_touched(expr* e) { return get_bool_info(e).touched; }
void set_touched(expr* e, unsigned t) { get_bool_info(e).touched = t; }
void inc_touched(expr* e) { ++get_bool_info(e).touched; }
enum class move_type { random_t, guided_t, move_t, reset_t };
friend std::ostream& operator<<(std::ostream& out, move_type mt);
@ -128,10 +130,51 @@ namespace sls {
void check_restart();
void reset_uninterp_in_false_literals();
bool is_bv_literal(sat::literal lit);
bool is_false_bv_literal(sat::literal lit);
void search();
class root_assertions {
bv_lookahead& m_la;
unsigned idx = 0;
void next();
public:
root_assertions(bv_lookahead& la, bool start);
expr* operator*() const;
root_assertions& operator++() {
++idx;
next();
return *this;
}
bool operator!=(root_assertions const& other) const {
return idx != other.idx;
}
bool operator==(root_assertions const& other) const {
return idx == other.idx;
}
};
class root_assertion_iterator {
bv_lookahead& m_la;
public:
root_assertion_iterator(bv_lookahead& la) : m_la(la) {}
root_assertions begin() { return root_assertions(m_la, true); }
root_assertions end() { return root_assertions(m_la, false); }
};
root_assertion_iterator get_root_assertions() {
return root_assertion_iterator(*this);
}
bool assertion_is_true(expr* a);
void initialize_bool_values();
void finalize_bool_values();
public:
bv_lookahead(bv_eval& ev);