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* prepare for dependencies Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * snapshot Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * more refactoring Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * more refactoring Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * build Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * pass in u_dependency_manager Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * address NYIs Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * more refactoring names Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * eq_explanation update Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * add outline of bounds improvement functionality Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * fix unit tests Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * remove unused structs Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * more bounds Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * more bounds Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * convert more internals to use u_dependency instead of constraint_index Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * convert more internals to use u_dependency instead of constraint_index Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * remember to push/pop scopes Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * use the main function for updating bounds Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * na Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * na Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * remove reset of shared dep manager Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> * disable improve-bounds, add statistics Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com> --------- Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
92 lines
4.1 KiB
C++
92 lines
4.1 KiB
C++
/*++
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Copyright (c) 2017 Microsoft Corporation
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Author:
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Lev Nachmanson (levnach)
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Nikolaj Bjorner (nbjorner)
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--*/
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#pragma once
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#include "util/dependency.h"
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#include "util/region.h"
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#include "math/lp/nla_common.h"
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#include "math/lp/lar_solver.h"
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#include "math/interval/interval.h"
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#include "math/interval/dep_intervals.h"
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#include "util/dependency.h"
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namespace nla {
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class core;
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class intervals {
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mutable dep_intervals m_dep_intervals;
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core* m_core;
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public:
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typedef dep_intervals::interval interval;
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private:
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u_dependency* mk_dep(lp::explanation const&);
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lp::lar_solver& ls();
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const lp::lar_solver& ls() const;
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public:
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intervals(core* c, reslimit& lim);
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dep_intervals& get_dep_intervals() { return m_dep_intervals; }
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u_dependency* mk_join(u_dependency* a, u_dependency* b) { return m_dep_intervals.mk_join(a, b); }
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u_dependency* mk_leaf(lp::constraint_index ci) { return m_dep_intervals.mk_leaf(ci); }
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std::ostream& print_dependencies(u_dependency*, std::ostream&) const;
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std::ostream& display(std::ostream& out, const intervals::interval& i) const;
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void set_lower(interval& a, rational const& n) const { m_dep_intervals.set_lower(a, n.to_mpq()); }
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void set_upper(interval& a, rational const& n) const { m_dep_intervals.set_upper(a, n.to_mpq()); }
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void set_lower_is_open(interval& a, bool strict) { m_dep_intervals.set_lower_is_open(a, strict); }
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void set_lower_is_inf(interval& a, bool inf) { m_dep_intervals.set_lower_is_inf(a, inf); }
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void set_upper_is_open(interval& a, bool strict) { m_dep_intervals.set_upper_is_open(a, strict); }
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void set_upper_is_inf(interval& a, bool inf) { m_dep_intervals.set_upper_is_inf(a, inf); }
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bool is_zero(const interval& a) const { return m_dep_intervals.is_zero(a); }
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template <dep_intervals::with_deps_t wd>
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void set_var_interval(lpvar v, interval& b);
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template <dep_intervals::with_deps_t wd>
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bool interval_from_term(const nex& e, scoped_dep_interval& i);
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template <dep_intervals::with_deps_t wd, typename T>
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bool interval_of_sum_no_term(const nex_sum& e, scoped_dep_interval&, const std::function<void (const T&)>& f );
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template <dep_intervals::with_deps_t wd, typename T>
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bool interval_of_sum(const nex_sum& e, scoped_dep_interval&, const std::function<void (const T&)>& );
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template <dep_intervals::with_deps_t wd, typename T>
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bool interval_of_mul(const nex_mul& e, scoped_dep_interval&, const std::function<void (const T&)>&);
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template <dep_intervals::with_deps_t wd>
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void to_power(scoped_dep_interval&, unsigned);
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template <dep_intervals::with_deps_t wd, typename T>
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bool interval_of_expr(const nex* e, unsigned p, scoped_dep_interval&, const std::function<void (const T&)>& f);
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bool upper_is_inf(const interval& a) const { return m_dep_intervals.upper_is_inf(a); }
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bool lower_is_inf(const interval& a) const { return m_dep_intervals.lower_is_inf(a); }
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void set_zero_interval_deps_for_mult(interval&);
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void set_zero_interval_with_explanation(interval&, const lp::explanation& exp);
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void set_zero_interval(interval&);
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bool is_inf(const interval& i) const { return m_dep_intervals.is_inf(i); }
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bool check_nex(const nex*, u_dependency*);
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const nex* get_zero_interval_child(const nex_mul&) const;
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const nex* get_inf_interval_child(const nex_sum&) const;
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bool has_zero_interval(const nex&) const;
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bool has_inf_interval(const nex&) const;
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bool mul_has_inf_interval(const nex_mul&) const;
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static lp::lar_term expression_to_normalized_term(const nex_sum*, rational& a, rational& b);
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static void add_linear_to_vector(const nex*, vector<std::pair<rational, lpvar>>&);
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static void add_mul_of_degree_one_to_vector(const nex_mul*, vector<std::pair<rational, lpvar>>&);
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lpvar find_term_column(const lp::lar_term&, rational& a) const;
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std::ostream& display_separating_interval(std::ostream& out, const nex*n, const scoped_dep_interval& interv_wd, u_dependency* initial_deps);
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bool conflict_u_l(const interval& a, const interval& b) const;
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}; // end of intervals
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} // end of namespace nla
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