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better encodings for at-most-1, #755

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2016-10-10 23:46:03 -07:00
parent 5d9820f3e2
commit 8d2b70a5e2
17 changed files with 232 additions and 253 deletions
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1
src/solver/solver_na2as.h
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@ -46,6 +46,7 @@ public:
virtual unsigned get_num_assumptions() const { return m_assumptions.size(); }
virtual expr * get_assumption(unsigned idx) const { return m_assumptions[idx]; }
virtual lbool get_consequences(expr_ref_vector const& asms, expr_ref_vector const& vars, expr_ref_vector& consequences);
virtual lbool find_mutexes(expr_ref_vector const& vars, vector<expr_ref_vector>& mutexes);
protected:
virtual lbool check_sat_core(unsigned num_assumptions, expr * const * assumptions) = 0;
virtual void push_core() = 0;