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extract also units from search state

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This commit is contained in:
Nikolaj Bjorner 2022-02-07 06:15:49 +02:00
parent d4ea67a6e7
commit 3f3d058567
7 changed files with 36 additions and 1 deletions
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1
src/solver/solver.cpp
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@ -242,6 +242,7 @@ expr_ref_vector solver::get_units() {
ast_manager& m = get_manager();
expr_ref_vector fmls(m), result(m), tmp(m);
get_assertions(fmls);
get_units_core(fmls);
obj_map<expr, bool> units;
for (expr* f : fmls) {
if (m.is_not(f, f) && is_literal(m, f)) {

2
src/solver/solver.h
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@ -261,6 +261,8 @@ public:
*/
expr_ref_vector get_units();
virtual void get_units_core(expr_ref_vector& units) {}
expr_ref_vector get_non_units();
virtual expr_ref_vector get_trail() = 0; // { return expr_ref_vector(get_manager()); }