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fix #3758

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-04-05 12:01:17 -07:00
parent 1949a978ce
commit efc02282f4
3 changed files with 56 additions and 2 deletions
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27
src/smt/theory_utvpi.h
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@ -159,6 +159,25 @@ namespace smt {
arith_factory * m_factory;
rational m_delta;
struct var_value_hash;
friend struct var_value_hash;
struct var_value_hash {
theory_utvpi & m_th;
var_value_hash(theory_utvpi & th):m_th(th) {}
unsigned operator()(theory_var v) const { return m_th.mk_value(v, false).hash(); }
};
struct var_value_eq;
friend struct var_value_eq;
struct var_value_eq {
theory_utvpi & m_th;
var_value_eq(theory_utvpi & th):m_th(th) {}
bool operator()(theory_var v1, theory_var v2) const { return m_th.mk_value(v1, false) == m_th.mk_value(v2, false) && m_th.is_int(v1) == m_th.is_int(v2); }
};
typedef int_hashtable<var_value_hash, var_value_eq> var_value_table;
var_value_table m_var_value_table;
// Set a conflict due to a negative cycle.
void set_conflict();
@ -257,6 +276,10 @@ namespace smt {
private:
void init_model();
bool assume_eqs_core();
rational mk_value(theory_var v, bool is_int);
bool is_parity_ok(unsigned v) const;
@ -271,6 +294,8 @@ namespace smt {
bool check_z_consistency();
bool has_shared();
virtual void new_eq_eh(th_var v1, th_var v2, justification& j) {
m_stats.m_num_core2th_eqs++;
new_eq_or_diseq(true, v1, v2, j);
@ -299,6 +324,8 @@ namespace smt {
void new_eq_or_diseq(bool is_eq, th_var v1, th_var v2, justification& eq_just);
bool is_int(theory_var v) const { return a.is_int(get_enode(v)->get_owner()); }
th_var get_zero(sort* s) { return a.is_int(s) ? m_izero : m_rzero; }
th_var get_zero(expr* e) { return get_zero(get_manager().get_sort(e)); }