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fixing overflow checking

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-07-07 13:53:26 -07:00
parent 53c38f02d5
commit 55f54b4fdc
2 changed files with 80 additions and 56 deletions
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11
src/sat/ba_solver.h
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@ -215,7 +215,7 @@ namespace sat {
unsigned m_conflict_lvl;
svector<int64> m_coeffs;
svector<bool_var> m_active_vars;
int64 m_bound;
unsigned m_bound;
tracked_uint_set m_active_var_set;
literal_vector m_lemma;
literal_vector m_skipped;
@ -366,15 +366,16 @@ namespace sat {
mutable bool m_overflow;
void reset_active_var_set();
void normalize_active_coeffs();
void inc_coeff(literal l, int64 offset);
void inc_coeff(literal l, unsigned offset);
int64 get_coeff(bool_var v) const;
int64 get_abs_coeff(bool_var v) const;
unsigned get_abs_coeff(bool_var v) const;
int get_int_coeff(bool_var v) const;
unsigned get_bound() const;
void inc_bound(int64 i);
literal get_asserting_literal(literal conseq);
void process_antecedent(literal l, int64 offset);
void process_card(card& c, int64 offset);
void process_antecedent(literal l, unsigned offset);
void process_card(card& c, unsigned offset);
void cut();
bool create_asserting_lemma();