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bv and gc of literals (#4692)

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* bv and gc of literals

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* overload

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* diseq

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

* diseq

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-09-17 14:24:07 -07:00 • committed by GitHub
parent 2d52367368
commit 549753845e
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GPG key ID: 4AEE18F83AFDEB23
34 changed files with 1480 additions and 854 deletions
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44
src/ast/euf/euf_enode.h
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@ -36,23 +36,23 @@ namespace euf {
const theory_id null_theory_id = -1;
class enode {
expr* m_expr{ nullptr };
bool m_mark1 { false };
bool m_mark2 { false };
bool m_commutative { false };
bool m_update_children { false };
bool m_interpreted { false };
bool m_merge_enabled { true };
unsigned m_class_size { 1 };
unsigned m_table_id { UINT_MAX };
expr* m_expr{ nullptr };
bool m_mark1{ false };
bool m_mark2{ false };
bool m_commutative{ false };
bool m_update_children{ false };
bool m_interpreted{ false };
bool m_merge_enabled{ true };
unsigned m_class_size{ 1 };
unsigned m_table_id{ UINT_MAX };
enode_vector m_parents;
enode* m_next{ nullptr };
enode* m_root{ nullptr };
enode* m_target { nullptr };
enode* m_next{ nullptr };
enode* m_root{ nullptr };
enode* m_target{ nullptr };
th_var_list m_th_vars;
justification m_justification;
unsigned m_num_args { 0 };
enode* m_args[0];
unsigned m_num_args{ 0 };
enode* m_args[0];
friend class enode_args;
friend class enode_parents;
@ -81,6 +81,20 @@ namespace euf {
}
return n;
}
static enode* mk_tmp(region& r, unsigned num_args) {
void* mem = r.allocate(get_enode_size(num_args));
enode* n = new (mem) enode();
n->m_expr = nullptr;
n->m_next = n;
n->m_root = n;
n->m_commutative = true;
n->m_num_args = 2;
n->m_merge_enabled = true;
for (unsigned i = 0; i < num_args; ++i)
n->m_args[i] = nullptr;
return n;
}
void set_update_children() { m_update_children = true; }
@ -148,10 +162,12 @@ namespace euf {
unsigned get_expr_id() const { return m_expr->get_id(); }
unsigned get_root_id() const { return m_root->m_expr->get_id(); }
theory_var get_th_var(theory_id id) const { return m_th_vars.find(id); }
theory_var get_closest_th_var(theory_id id) const;
bool is_attached_to(theory_id id) const { return get_th_var(id) != null_theory_var; }
bool has_th_vars() const { return !m_th_vars.empty(); }
bool has_one_th_var() const { return !m_th_vars.empty() && !m_th_vars.get_next();}
theory_var get_first_th_id() const { SASSERT(has_th_vars()); return m_th_vars.get_id(); }
void inc_class_size(unsigned n) { m_class_size += n; }
void dec_class_size(unsigned n) { m_class_size -= n; }