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debugging simplex/pb

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-02-21 14:39:54 -08:00
parent ea65f32914
commit e2db1418f9
7 changed files with 235 additions and 73 deletions
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18
src/smt/theory_pb.h
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@ -37,13 +37,14 @@ namespace smt {
class rewatch_vars;
class negate_ineq;
class remove_var;
class reset_bound;
class undo_bound;
typedef rational numeral;
typedef vector<std::pair<literal, numeral> > arg_t;
typedef simplex::simplex<simplex::mpz_ext> simplex;
typedef simplex::row row;
typedef simplex::row_iterator row_iterator;
typedef unsynch_mpq_inf_manager eps_manager;
typedef _scoped_numeral<eps_manager> scoped_eps_numeral;
struct stats {
unsigned m_num_conflicts;
@ -96,8 +97,8 @@ namespace smt {
unsigned watch_size() const { return m_watch_sz; }
// variable watch infrastructure
numeral min_sum() const { return m_min_sum; }
numeral max_sum() const { return m_max_sum; }
numeral const& min_sum() const { return m_min_sum; }
numeral const& max_sum() const { return m_max_sum; }
unsigned nfixed() const { return m_nfixed; }
bool vwatch_initialized() const { return !max_sum().is_zero(); }
void vwatch_reset() { m_min_sum.reset(); m_max_sum.reset(); m_nfixed = 0; }
@ -173,8 +174,10 @@ namespace smt {
u_map<row_info> m_ineq_row_info; // Simplex: row information per variable
uint_set m_vars; // Simplex: 0-1 variables.
simplex m_simplex; // Simplex: tableau
unsigned_vector m_explain_lower; // Simplex: explanations for lower bounds
unsigned_vector m_explain_upper; // Simplex: explanations for upper bounds
literal_vector m_explain_lower; // Simplex: explanations for lower bounds
literal_vector m_explain_upper; // Simplex: explanations for upper bounds
unsynch_mpq_inf_manager m_mpq_inf_mgr; // Simplex: manage inf_mpq numerals
unsynch_mpz_manager m_mpz_mgr; // Simplex: manager mpz numerals
unsigned_vector m_ineqs_trail;
unsigned_vector m_ineqs_lim;
literal_vector m_literals; // temporary vector
@ -204,6 +207,11 @@ namespace smt {
void assign_ineq(ineq& c, bool is_true);
void assign_eq(ineq& c, bool is_true);
// simplex:
literal set_explain(literal_vector& explains, unsigned var, literal expl);
void update_bound(bool_var v, literal explain, bool is_lower, mpq_inf const& bound);
bool check_feasible();
std::ostream& display(std::ostream& out, ineq const& c, bool values = false) const;
virtual void display(std::ostream& out) const;
void display_resolved_lemma(std::ostream& out) const;