mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-24 17:45:32 +00:00
Code Activity

fixup compiled patterns

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-03-29 11:42:40 -07:00
parent 1c694fd42f
commit 3afe081f62
5 changed files with 54 additions and 44 deletions
Download patch file Download diff file Expand all files Collapse all files

36
src/tactic/core/special_relations_tactic.cpp
View file

@ -19,6 +19,8 @@ Notes:
--*/
#include "tactic/core/special_relations_tactic.h"
#include "ast/rewriter/func_decl_replace.h"
#include "ast/ast_util.h"
#include "ast/ast_pp.h"
void special_relations_tactic::collect_feature(goal const& g, unsigned idx,
obj_map<func_decl, sp_axioms>& goal_features) {
@ -27,7 +29,10 @@ void special_relations_tactic::collect_feature(goal const& g, unsigned idx,
if (!is_quantifier(f)) return;
unsigned index = 0;
app_ref_vector patterns(m);
if (m_pm.match_quantifier_index(to_quantifier(f), patterns, index)) {
bool is_match = m_pm.match_quantifier_index(to_quantifier(f), patterns, index);
TRACE("special_relations", tout << "check " << is_match << " " << mk_pp(f, m) << "\n";
if (is_match) tout << patterns << " " << index << "\n";);
if (is_match) {
p = to_app(patterns.get(0)->get_arg(0))->get_decl();
insert(goal_features, p, idx, m_properties[index]);
}
@ -44,8 +49,8 @@ void special_relations_tactic::insert(obj_map<func_decl, sp_axioms>& goal_featur
void special_relations_tactic::initialize() {
if (!m_properties.empty()) return;
sort_ref A(m);
func_decl_ref R(m.mk_func_decl(symbol("R"), A, A, m.mk_bool_sort()), m);
sort_ref A(m.mk_uninterpreted_sort(symbol("A")), m);
func_decl_ref R(m.mk_func_decl(symbol("?R"), A, A, m.mk_bool_sort()), m);
var_ref x(m.mk_var(0, A), m);
var_ref y(m.mk_var(1, A), m);
var_ref z(m.mk_var(2, A), m);
@ -68,34 +73,51 @@ void special_relations_tactic::initialize() {
expr_ref fml(m);
quantifier_ref q(m);
expr_ref pat(m.mk_pattern(to_app(Rxy)), m);
expr_ref pat0(m.mk_pattern(to_app(Rxx)), m);
expr* pats[1] = { pat };
expr* pats0[1] = { pat0 };
fml = m.mk_or(m.mk_not(Rxy), m.mk_not(Ryz), Rxz);
q = m.mk_forall(3, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_transitive);
fml = m.mk_or(not(Rxy & Ryz), Rxz);
q = m.mk_forall(3, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_transitive);
fml = Rxx;
q = m.mk_forall(1, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
q = m.mk_forall(1, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats0);
register_pattern(m_pm.initialize(q), sr_reflexive);
fml = m.mk_or(nRxy, nRyx, m.mk_eq(x, y));
q = m.mk_forall(2, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_antisymmetric);
fml = m.mk_or(not(Rxy & Ryx), m.mk_eq(x, y));
q = m.mk_forall(2, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_antisymmetric);
fml = m.mk_or(nRyx, nRzx, Ryz, Rzy);
q = m.mk_forall(3, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_lefttree);
fml = m.mk_or(not (Ryx & Rzx), Ryz, Rzy);
q = m.mk_forall(3, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_lefttree);
fml = m.mk_or(nRxy, nRxz, Ryx, Rzy);
fml = m.mk_or(nRxy, nRxz, Ryz, Rzy);
q = m.mk_forall(3, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_righttree);
fml = m.mk_or(not(Rxy & Rxz), Ryz, Rzy);
q = m.mk_forall(3, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_righttree);
fml = m.mk_or(Rxy, Ryx);
q = m.mk_forall(2, As, xyz, fml, 0, symbol::null, symbol::null, 1, pats);
register_pattern(m_pm.initialize(q), sr_total);
TRACE("special_relations", m_pm.display(tout););
}
void special_relations_tactic::register_pattern(unsigned index, sr_property p) {
SASSERT(index == m_properties.size() + 1);
SASSERT(index == m_properties.size());
m_properties.push_back(p);
}

14
src/tactic/core/special_relations_tactic.h
View file

@ -43,17 +43,10 @@ class special_relations_tactic : public tactic {
void initialize();
void register_pattern(unsigned index, sr_property);
bool is_transitivity(expr* fml, func_decl_ref& p);
bool is_anti_symmetry(expr* fml, func_decl_ref& p);
bool is_left_tree(expr* fml, func_decl_ref& p);
bool is_right_tree(expr* fml, func_decl_ref& p);
bool is_reflexive(expr* fml, func_decl_ref& p);
bool is_total(expr* fml, func_decl_ref& p);
bool is_symmetric(expr* fml, func_decl_ref& p);
public:
special_relations_tactic(ast_manager & m, params_ref const & ref = params_ref()): m(m), m_params(ref), m_pm(m) {}
special_relations_tactic(ast_manager & m, params_ref const & ref = params_ref()):
m(m), m_params(ref), m_pm(m) {}
~special_relations_tactic() override {}
@ -71,8 +64,9 @@ public:
tactic * mk_special_relations_tactic(ast_manager & m, params_ref const & p = params_ref());
/*
ADD_TACTIC("special_relations", "detect and replace by special relations.", "mk_special_relations_tactic(m, p)")
ADD_TACTIC("special-relations", "detect and replace by special relations.", "mk_special_relations_tactic(m, p)")
*/
#endif