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revive polynomial superposition (wip)

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This commit is contained in:
Jakob Rath 2022-10-07 10:34:07 +02:00
parent 155b746e03
commit dcd6c01a90
5 changed files with 105 additions and 56 deletions
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18
src/math/polysat/conflict.h
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@ -130,8 +130,11 @@ namespace polysat {
~conflict();
inference_logger& logger();
void log_inference(inference const& inf) { logger().log(inf); }
bool empty() const;
/** Reset to "no conflict" state. This is only appropriate when conflict resolution is complete or aborted. */
void reset();
using const_iterator = conflict_iterator;
@ -193,8 +196,23 @@ namespace polysat {
/** Evaluate constraint under assignment and insert it into conflict state. */
void insert_eval(signed_constraint c);
/**
* Derive new constraint c by bool-propagation from premises c1, ..., cn;
* as if c was unit-propagated by the lemma c1 /\ ... /\ cn ==> c.
* Does not add c to the conflict state.
*/
void bool_propagate(signed_constraint c, signed_constraint const* premises, unsigned premises_len);
void bool_propagate(signed_constraint c, std::initializer_list<signed_constraint> premises);
/** Remove c from core */
void remove(signed_constraint c);
void remove_var(pvar v);
/**
* Remove all constraints and variables from the conflict state.
* Use this during conflict resolution if the core needs to be replaced.
* (It keeps the conflict level and side lemmas.)
*/
void remove_all();
/** Perform boolean resolution with the clause upon the given literal. */
void resolve_bool(sat::literal lit, clause const& cl);