mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-08-25 12:35:59 +00:00
Code Activity

backtrack_fi

Browse source
This commit is contained in:
Jakob Rath 2022-04-25 17:37:50 +02:00
parent fc2633c964
commit 6bf897aad8
6 changed files with 113 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

5
src/math/polysat/conflict.h
View file

@ -101,8 +101,8 @@ namespace polysat {
/** Conflict state, represented as core (~negation of clause). */
class conflict {
solver& s;
// signed_constraints m_constraints; // new constraints used as premises
indexed_uint_set m_literals; // set of boolean literals in the conflict
unsigned_vector m_var_occurrences; // for each variable, the number of constraints in m_literals that contain it
uint_set m_vars; // variable assignments used as premises
uint_set m_bail_vars;
@ -137,6 +137,7 @@ namespace polysat {
/// Log inference at the current state.
void log_inference(inference const& inf);
void log_inference(char const* name) { log_inference(inference_named(name)); }
void log_var(pvar v);
/// Log relevant part of search state and viable.
void end_conflict();
@ -149,6 +150,8 @@ namespace polysat {
bool empty() const;
void reset();
bool pvar_occurs_in_constraints(pvar v) const { return v < m_var_occurrences.size() && m_var_occurrences[v] > 0; }
bool contains_pvar(pvar v) const { return m_vars.contains(v) || m_bail_vars.contains(v); }
bool is_marked(signed_constraint c) const;
bool is_marked(sat::bool_var b) const;