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https://github.com/Z3Prover/z3
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68 lines
2 KiB
C++
68 lines
2 KiB
C++
/*++
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Copyright (c) 2013 Microsoft Corporation
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Module Name:
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aig_exporter.h
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Abstract:
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Export AIG files from horn clauses
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--*/
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#ifndef AIG_EXPORTER_H_
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#define AIG_EXPORTER_H_
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#include "aig.h"
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#include "dl_rule_set.h"
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#include <map>
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#include <sstream>
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#include "rel_context.h"
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namespace datalog {
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class aig_exporter {
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public:
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aig_exporter(const rule_set& rules, context& ctx, const fact_vector *facts = 0);
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void operator()(std::ostream& out);
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private:
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typedef obj_map<func_decl, unsigned> decl_id_map;
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typedef obj_map<const expr, unsigned> aig_expr_id_map;
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typedef std::map<std::pair<unsigned,unsigned>, unsigned> and_gates_map;
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const rule_set& m_rules;
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const fact_vector *m_facts;
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ast_manager& m;
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rule_manager& m_rm;
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aig_manager m_aigm;
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decl_id_map m_decl_id_map;
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unsigned m_next_decl_id;
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aig_expr_id_map m_aig_expr_id_map;
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unsigned m_next_aig_expr_id;
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and_gates_map m_and_gates_map;
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unsigned m_num_and_gates;
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expr_ref_vector m_latch_vars, m_latch_varsp;
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expr_ref_vector m_ruleid_var_set, m_ruleid_varp_set;
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unsigned_vector m_input_vars;
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std::stringstream m_buffer;
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void mk_latch_vars(unsigned n);
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expr* get_latch_var(unsigned i, const expr_ref_vector& vars);
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void assert_pred_id(func_decl *decl, const expr_ref_vector& vars, expr_ref_vector& exprs);
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void collect_var_substs(substitution& subst, const app *h,
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const expr_ref_vector& vars, expr_ref_vector& eqs);
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unsigned expr_to_aig(const expr *e);
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unsigned neg(unsigned id) const;
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unsigned mk_and(unsigned id1, unsigned id2);
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unsigned mk_or(unsigned id1, unsigned id2);
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unsigned get_var(const expr *e);
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unsigned mk_var(const expr *e);
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unsigned mk_input_var(const expr *e = 0);
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unsigned mk_expr_id();
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};
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}
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#endif
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