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solver::check_sat_cc : check_sat assuming cube and clause

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Extends check_sat with an ability to assume a single clause in
addition to assuming a cube of assumptions
This commit is contained in:
Arie Gurfinkel 2018-05-29 13:16:30 -07:00
parent 4477f7d326
commit 26339119e4
6 changed files with 50 additions and 70 deletions
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6
src/solver/solver_na2as.h
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@ -36,19 +36,21 @@ public:
void assert_expr_core2(expr * t, expr * a) override;
// virtual void assert_expr_core(expr * t) = 0;
// Subclasses of solver_na2as should redefine the following *_core methods instead of these ones.
lbool check_sat(unsigned num_assumptions, expr * const * assumptions) override;
lbool check_sat_cc(const expr_ref_vector &assumptions, const expr_ref_vector &clause) override;
void push() override;
void pop(unsigned n) override;
unsigned get_scope_level() const override;
unsigned get_num_assumptions() const override { return m_assumptions.size(); }
expr * get_assumption(unsigned idx) const override { return m_assumptions[idx]; }
lbool get_consequences(expr_ref_vector const& asms, expr_ref_vector const& vars, expr_ref_vector& consequences) override;
lbool find_mutexes(expr_ref_vector const& vars, vector<expr_ref_vector>& mutexes) override;
protected:
virtual lbool check_sat_core(unsigned num_assumptions, expr * const * assumptions) = 0;
virtual lbool check_sat_cc_core(const expr_ref_vector &assumptions, const expr_ref_vector &clause) {NOT_IMPLEMENTED_YET();}
virtual void push_core() = 0;
virtual void pop_core(unsigned n) = 0;
};