z3 / src / muz_qe / dl_mk_coalesce.h

Copyright (c) 2012 Microsoft Corporation

Module Name:



    Coalesce rules with shared bodies.


    Nikolaj Bjorner (nbjorner) 2012-10-15

Revision History:

#ifndef _DL_MK_COALESCE_H_
#define _DL_MK_COALESCE_H_


namespace datalog {

       \brief Implements an unfolding transformation.
    class mk_coalesce : public rule_transformer::plugin {
        context&        m_ctx;
        ast_manager&    m;
        rule_manager&   rm;
        expr_ref_vector m_sub1, m_sub2;
        unsigned        m_idx;
        replace_proof_converter* m_pc;

        void mk_pred(app_ref& pred, app* p1, app* p2);

        void extract_conjs(expr_ref_vector const& sub, rule const& rl, expr_ref& result);

        bool same_body(rule const& r1, rule const& r2) const;

        void merge_rules(rule_ref& tgt, rule const& src);

           \brief Create coalesced rules.
        mk_coalesce(context & ctx);
        rule_set * operator()(rule_set const & source, model_converter_ref& mc, proof_converter_ref& pc);


#endif /* _DL_MK_COALESCE_H_ */
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