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wip - local search for euf/arithmetic

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This commit is contained in:
Nikolaj Bjorner 2023-02-11 09:33:35 -08:00
parent 46c8d78ece
commit 7bef2f3e6f
9 changed files with 716 additions and 172 deletions
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26
src/sat/sat_ddfw.h
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@ -43,6 +43,17 @@ namespace sat {
void add(literal lit) { ++m_num_trues; m_trues += lit.index(); }
void del(literal lit) { SASSERT(m_num_trues > 0); --m_num_trues; m_trues -= lit.index(); }
};
class use_list {
ddfw& p;
unsigned i;
public:
use_list(ddfw& p, literal lit) :
p(p), i(lit.index()) {}
unsigned const* begin() { return p.m_flat_use_list.data() + p.m_use_list_index[i]; }
unsigned const* end() { return p.m_flat_use_list.data() + p.m_use_list_index[i + 1]; }
};
protected:
struct config {
@ -102,15 +113,7 @@ namespace sat {
parallel* m_par;
class use_list {
ddfw& p;
unsigned i;
public:
use_list(ddfw& p, literal lit):
p(p), i(lit.index()) {}
unsigned const* begin() { return p.m_flat_use_list.data() + p.m_use_list_index[i]; }
unsigned const* end() { return p.m_flat_use_list.data() + p.m_use_list_index[i + 1]; }
};
void flatten_use_list();
@ -163,7 +166,6 @@ namespace sat {
// flip activity
bool do_flip();
bool_var pick_var();
void flip(bool_var v);
void save_best_values();
void save_model();
void save_priorities();
@ -245,6 +247,10 @@ namespace sat {
void remove_assumptions();
void flip(bool_var v);
use_list get_use_list(literal lit) { return use_list(*this, lit); }
};
}