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add sat-euf

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-08-25 12:16:45 -07:00
parent a7b51d04cd
commit ecd3315a74
11 changed files with 474 additions and 52 deletions
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9
src/ast/euf/euf_enode.h
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@ -43,6 +43,7 @@ namespace euf {
enode* m_root;
enode* m_target { nullptr };
justification m_justification;
unsigned m_num_args;
enode* m_args[0];
friend class enode_args;
@ -56,12 +57,14 @@ namespace euf {
}
static enode* mk(region& r, expr* f, unsigned num_args, enode* const* args) {
SASSERT(num_args <= (is_app(f) ? to_app(f)->get_num_args() : 0));
void* mem = r.allocate(get_enode_size(num_args));
enode* n = new (mem) enode();
n->m_owner = f;
n->m_next = n;
n->m_root = n;
n->m_commutative = num_args == 2 && is_app(f) && to_app(f)->get_decl()->is_commutative();
n->m_num_args = num_args;
for (unsigned i = 0; i < num_args; ++i) {
SASSERT(to_app(f)->get_arg(i) == args[i]->get_owner());
n->m_args[i] = args[i];
@ -83,9 +86,10 @@ namespace euf {
}
enode* const* args() const { return m_args; }
unsigned num_args() const { return is_app(m_owner) ? to_app(m_owner)->get_num_args() : 0; }
unsigned num_args() const { return m_num_args; }
unsigned num_parents() const { return m_parents.size(); }
bool interpreted() const { return m_interpreted; }
bool commutative() const { return m_commutative; }
void mark_interpreted() { SASSERT(num_args() == 0); m_interpreted = true; }
enode* get_arg(unsigned i) const { SASSERT(i < num_args()); return m_args[i]; }
@ -97,6 +101,9 @@ namespace euf {
void mark1() { m_mark1 = true; }
void unmark1() { m_mark1 = false; }
bool is_marked1() { return m_mark1; }
void mark2() { m_mark2 = true; }
void unmark2() { m_mark2 = false; }
bool is_marked2() { return m_mark2; }
void add_parent(enode* p) { m_parents.push_back(p); }
unsigned class_size() const { return m_class_size; }
enode* get_root() const { return m_root; }