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Add functionality for BDD vectors (#5198)

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* Fix XOR over BDDs

* Add operator<< for find_int_t

* Add equality assertion macro that prints expression values on failure

* Adapt contains_int and find_int to take externally-defined bits

* Add more operations on BDD vectors

* Remove old functions

* Additional bddv functions

* Rename some things

* Make bddv a class and add operators

* Fix find_num/contains_num calls
This commit is contained in:
Jakob Rath 2021-04-19 18:05:19 +02:00 • committed by GitHub
parent 981839ee73
commit 4da1b7b03c
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GPG key ID: 4AEE18F83AFDEB23
8 changed files with 499 additions and 138 deletions
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6
src/math/polysat/solver.h
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@ -45,7 +45,7 @@ namespace polysat {
reslimit& m_lim;
scoped_ptr_vector<dd::pdd_manager> m_pdd;
scoped_ptr_vector<vector<bdd>> m_bits;
scoped_ptr_vector<unsigned_vector> m_bits;
dd::bdd_manager m_bdd;
dep_value_manager m_value_manager;
small_object_allocator m_alloc;
@ -132,7 +132,7 @@ namespace polysat {
/**
* Find a next viable value for variable.
*/
dd::find_int_t find_viable(pvar v, rational & val);
dd::find_result find_viable(pvar v, rational & val);
/** Log all viable values for the given variable.
* (Inefficient, but useful for debugging small instances.)
@ -147,7 +147,7 @@ namespace polysat {
void del_var();
dd::pdd_manager& sz2pdd(unsigned sz);
vector<bdd>& sz2bits(unsigned sz);
unsigned_vector const& sz2bits(unsigned sz);
void push_level();
void pop_levels(unsigned num_levels);