mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-08-18 01:02:15 +00:00
Code Activity

Polysat disjunctive lemmas (WIP) (#5275)

Browse source 
* Extend search state by boolean literals

* Only resolve against positive equality

* mk_dep_ref

* Make clause non-owning

* scoped_clause

* Use scoped_clause

* minor

* scoped_ptr move assignment

* WIP: internal handling of disjunctive constraints

* leaf_value

* disjunctive constraints continued

* Fix bool_lit

* Actually add constraints to storage

* Some fixes

* more fixes

* constraint should have a bool_lit instead of a bool_var

* propagate(bool_lit)

* updates

* interface changes

* small fixes

* Make sat::dimacs_lit's constructor explicit

(otherwise, calling operator<< with sat::literal is ambiguous)

* Use sat::literal

* Print test name at the beginning

* Convention: constraint corresponds to the positive boolean literal

* Make constraint ownership more explicit

* clause stores literals
This commit is contained in:
Jakob Rath 2021-05-21 22:50:25 +02:00 • committed by GitHub
parent 49e9782238
commit 28996429df
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
24 changed files with 1196 additions and 360 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/math/polysat/var_constraint.h
View file

@ -29,11 +29,11 @@ namespace polysat {
pvar m_var;
bdd m_viable;
public:
var_constraint(unsigned lvl, bool_var bvar, csign_t sign, pvar v, bdd const & b, p_dependency_ref const& dep):
constraint(lvl, bvar, sign, dep, ckind_t::bit_t), m_var(v), m_viable(b) {}
var_constraint(constraint_manager& m, unsigned lvl, csign_t sign, pvar v, bdd const & b, p_dependency_ref const& dep):
constraint(m, lvl, sign, dep, ckind_t::bit_t), m_var(v), m_viable(b) {}
~var_constraint() override {}
std::ostream& display(std::ostream& out) const override;
constraint* resolve(solver& s, pvar v) override;
scoped_ptr<constraint> resolve(solver& s, pvar v) override;
void narrow(solver& s) override;
bool is_always_false() override;
bool is_currently_false(solver& s) override;