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adding pre-processing of BP constraints

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2013-12-23 01:33:24 -08:00
parent 670f56e5e4
commit 24f2fd380c
9 changed files with 679 additions and 281 deletions
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15
src/ast/rewriter/pb_rewriter.h
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@ -22,12 +22,27 @@ Notes:
#include"pb_decl_plugin.h"
#include"rewriter_types.h"
#include"params.h"
#include"lbool.h"
template<typename PBU>
class pb_rewriter_util {
PBU& m_util;
void display(std::ostream& out, typename PBU::args_t& args, typename PBU::numeral& k);
public:
pb_rewriter_util(PBU& u) : m_util(u) {}
void unique(typename PBU::args_t& args, typename PBU::numeral& k);
lbool normalize(typename PBU::args_t& args, typename PBU::numeral& k);
void prune(typename PBU::args_t& args, typename PBU::numeral& k);
};
/**
\brief Cheap rewrite rules for PB constraints
*/
class pb_rewriter {
pb_util m_util;
vector<rational> m_coeffs;
ptr_vector<expr> m_args;
public:
pb_rewriter(ast_manager & m, params_ref const & p = params_ref()):
m_util(m) {