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https://github.com/Z3Prover/z3
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81 lines
2.5 KiB
C++
81 lines
2.5 KiB
C++
/*++
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Copyright (c) 2014 Microsoft Corporation
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Module Name:
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fpa_solver.h
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Abstract:
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Floating-Point Theory Plugin
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Author:
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Christoph (cwinter) 2014-04-23
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Revision History:
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--*/
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#pragma once
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#include "sat/smt/euf_solver.h"
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#include "ast/fpa/fpa2bv_converter.h"
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#include "ast/fpa/fpa2bv_rewriter.h"
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namespace fpa {
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typedef euf::enode enode;
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typedef euf::theory_var theory_var;
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class solver : public euf::th_euf_solver {
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protected:
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th_rewriter m_th_rw;
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fpa2bv_converter_wrapped m_converter;
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fpa2bv_rewriter m_rw;
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fpa_util & m_fpa_util;
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bv_util & m_bv_util;
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arith_util & m_arith_util;
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obj_map<expr, expr*> m_conversions;
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bool visit(expr* e) override;
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bool visited(expr* e) override;
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bool post_visit(expr* e, bool sign, bool root) override;
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expr_ref convert(expr* e);
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sat::literal_vector mk_side_conditions();
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void attach_new_th_var(enode* n);
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void activate(expr* e);
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void ensure_equality_relation(theory_var x, theory_var y);
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public:
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solver(euf::solver& ctx);
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~solver() override;
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void asserted(sat::literal l) override;
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void new_eq_eh(euf::th_eq const& eq) override;
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bool use_diseqs() const override { return true; }
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void new_diseq_eh(euf::th_eq const& eq) override;
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sat::literal internalize(expr* e, bool sign, bool root, bool learned) override;
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void internalize(expr* e, bool redundant) override;
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void apply_sort_cnstr(euf::enode* n, sort* s) override;
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std::ostream& display(std::ostream& out) const override;
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std::ostream& display_justification(std::ostream& out, sat::ext_justification_idx idx) const override { UNREACHABLE(); return out; }
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std::ostream& display_constraint(std::ostream& out, sat::ext_constraint_idx idx) const override { UNREACHABLE(); return out; }
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void add_value(euf::enode* n, model& mdl, expr_ref_vector& values) override;
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bool add_dep(euf::enode* n, top_sort<euf::enode>& dep) override;
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void finalize_model(model& mdl) override;
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bool unit_propagate() override { return false; }
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void get_antecedents(sat::literal l, sat::ext_justification_idx idx, sat::literal_vector& r, bool probing) override { UNREACHABLE(); }
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sat::check_result check() override { return sat::check_result::CR_DONE; }
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euf::th_solver* clone(euf::solver& ctx) override { return alloc(solver, ctx); }
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};
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}
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