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123 lines
2.7 KiB
C++
123 lines
2.7 KiB
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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dl_bmc_engine.h
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Abstract:
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BMC engine for fixedpoint solver.
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Author:
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Nikolaj Bjorner (nbjorner) 2012-9-20
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Revision History:
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--*/
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#ifndef _DL_BMC_ENGINE_H_
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#define _DL_BMC_ENGINE_H_
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#include "params.h"
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#include "statistics.h"
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#include "smt_solver.h"
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namespace datalog {
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class context;
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class bmc {
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context& m_ctx;
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ast_manager& m;
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front_end_params m_fparams;
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smt::solver m_solver;
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obj_map<func_decl, sort*> m_pred2sort;
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obj_map<func_decl, func_decl*> m_pred2newpred;
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obj_map<func_decl, ptr_vector<func_decl> > m_pred2args;
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ast_ref_vector m_pinned;
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rule_set m_rules;
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func_decl_ref m_query_pred;
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expr_ref m_answer;
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volatile bool m_cancel;
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proof_converter_ref m_pc;
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sort_ref m_path_sort;
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lbool check_query();
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void checkpoint();
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void declare_datatypes();
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void compile_nonlinear();
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void mk_rule_vars_nonlinear(rule& r, unsigned rule_id, expr* trace_arg, expr* path_arg, expr_ref_vector& sub);
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expr_ref mk_var_nonlinear(func_decl* pred, sort* s, unsigned idx, expr* path_arg, expr* trace_arg);
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expr_ref mk_arg_nonlinear(func_decl* pred, unsigned idx, expr* path_arg, expr* trace_arg);
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bool is_linear() const;
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lbool check_nonlinear();
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func_decl_ref mk_predicate(func_decl* p);
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func_decl_ref mk_rule(func_decl* p, unsigned rule_idx);
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// linear check
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lbool check_linear();
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lbool check_linear(unsigned level);
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void compile_linear();
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void compile_linear(unsigned level);
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void compile_linear(rule& r, unsigned level);
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expr_ref mk_level_predicate(symbol const& name, unsigned level);
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expr_ref mk_level_predicate(func_decl* p, unsigned level);
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expr_ref mk_level_arg(func_decl* pred, unsigned idx, unsigned level);
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expr_ref mk_level_rule(func_decl* p, unsigned rule_idx, unsigned level);
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expr_ref mk_level_var(func_decl* pred, sort* s, unsigned rule_id, unsigned idx, unsigned level);
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void get_model_linear(unsigned level);
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void assert_expr(expr* e);
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void mk_rule_vars(rule& r, unsigned level, unsigned rule_id, expr_ref_vector& sub);
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public:
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bmc(context& ctx);
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~bmc();
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lbool query(expr* query);
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void cancel();
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void cleanup();
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void display_certificate(std::ostream& out) const;
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void collect_statistics(statistics& st) const;
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expr_ref get_answer();
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static void collect_params(param_descrs& p);
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void updt_params();
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};
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};
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#endif
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