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Begin reorganizing resolve_value

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This commit is contained in:
Jakob Rath 2021-09-07 11:40:50 +02:00
parent b4e14c31d0
commit 7d58296ad2
6 changed files with 113 additions and 25 deletions
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26
src/math/polysat/explain.h
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@ -19,6 +19,30 @@ Author:
namespace polysat {
class solver;
class constraint_manager;
class explainer {
friend class conflict_core;
solver* m_solver = nullptr;
void set_solver(solver& s) { m_solver = &s; }
protected:
solver& s() { return *m_solver; }
constraint_manager& cm();
public:
virtual ~explainer() {}
virtual bool try_explain(pvar v, vector<signed_constraint> const& cjust_v, conflict_core& core) = 0;
};
class ex_polynomial_superposition : public explainer {
bool try_explain(pvar v, vector<signed_constraint> const& cjust_v, conflict_core& core) override;
};
#if 0
class conflict_explainer {
@ -45,7 +69,7 @@ namespace polysat {
bool saturate();
/** resolve conflict state against assignment to v */
void resolve(pvar v, ptr_vector<constraint> const& cjust_v); // TODO: try variable elimination of 'v', if not possible, core saturation and core reduction. (actually reduction could be one specific VE method).
void resolve(pvar v, ptr_vector<constraint> const& cjust_v);
void resolve(sat::literal lit);
// TODO: move conflict resolution from solver into this class.