mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-20 07:36:38 +00:00
Code Activity

merge

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2020-03-02 18:15:29 -08:00
parent a319f4bf58
commit f736f7e83e
17 changed files with 189 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

73
src/api/api_ast.cpp
View file

@ -249,6 +249,68 @@ extern "C" {
MK_NARY(Z3_mk_and, mk_c(c)->get_basic_fid(), OP_AND, SKIP);
MK_NARY(Z3_mk_or, mk_c(c)->get_basic_fid(), OP_OR, SKIP);
Z3_sort Z3_API Z3_mk_refinement_sort(Z3_context c, Z3_ast f) {
Z3_TRY;
LOG_Z3_mk_refinement_sort(c, f);
sort* s = nullptr;
if (to_ast(f)->get_kind() == AST_FUNC_DECL) {
func_decl* g = to_func_decl(to_ast(f));
s = mk_c(c)->rsutil().mk_sort(g);
}
else {
CHECK_IS_EXPR(f, nullptr);
expr* e = to_expr(f);
s = mk_c(c)->rsutil().mk_sort(e);
}
mk_c(c)->save_ast_trail(s);
RETURN_Z3(of_sort(s));
Z3_CATCH_RETURN(nullptr);
}
Z3_sort Z3_API Z3_refine_sort_basis(Z3_context c, Z3_sort s) {
Z3_TRY;
LOG_Z3_refine_sort_basis(c, s);
sort* s0 = nullptr;
RESET_ERROR_CODE();
if (!mk_c(c)->rsutil().is_refine_sort(to_sort(s), s0)) {
SET_ERROR_CODE(Z3_INVALID_ARG, nullptr);
RETURN_Z3(nullptr);
}
RETURN_Z3(of_sort(s0));
Z3_CATCH_RETURN(nullptr);
}
Z3_ast Z3_API Z3_refine_sort_predicate(Z3_context c, Z3_sort s) {
Z3_TRY;
LOG_Z3_refine_sort_predicate(c, s);
RESET_ERROR_CODE();
sort* s0 = nullptr;
expr* e = nullptr;
func_decl* f = nullptr;
if (mk_c(c)->rsutil().is_refine_sort(to_sort(s), s0, e)) {
RETURN_Z3(of_ast(e));
}
if (mk_c(c)->rsutil().is_refine_sort(to_sort(s), s0, f)) {
RETURN_Z3(of_ast(f));
}
SET_ERROR_CODE(Z3_INVALID_ARG, nullptr);
RETURN_Z3(nullptr);
Z3_CATCH_RETURN(nullptr);
}
MK_UNARY(Z3_mk_relax, mk_c(c)->rsutil().fid(), OP_RS_RELAX, SKIP);
Z3_ast Z3_API Z3_mk_restrict(Z3_context c, Z3_ast e, Z3_sort s) {
Z3_TRY;
LOG_Z3_mk_restrict(c, e, s);
RESET_ERROR_CODE();
CHECK_IS_EXPR(e, nullptr);
expr* result = mk_c(c)->rsutil().mk_restrict(to_expr(e), to_sort(s));
mk_c(c)->save_ast_trail(result);
RETURN_Z3(of_ast(result));
Z3_CATCH_RETURN(nullptr);
}
Z3_ast mk_ite_core(Z3_context c, Z3_ast t1, Z3_ast t2, Z3_ast t3) {
expr * result = mk_c(c)->m().mk_ite(to_expr(t1), to_expr(t2), to_expr(t3));
mk_c(c)->save_ast_trail(result);
@ -714,6 +776,9 @@ extern "C" {
else if (fid == mk_c(c)->get_seq_fid() && k == RE_SORT) {
return Z3_RE_SORT;
}
else if (fid == mk_c(c)->rsutil().fid() && k == REFINE_SORT) {
return Z3_REFINE_SORT;
}
else {
return Z3_UNKNOWN_SORT;
}
@ -1290,6 +1355,14 @@ extern "C" {
}
}
if (mk_c(c)->get_rs_fid() == _d->get_family_id()) {
switch (_d->get_decl_kind()) {
case OP_RS_RELAX: return Z3_OP_RELAX;
case OP_RS_RESTRICT: return Z3_OP_RESTRICT;
default: break;
}
}
return Z3_OP_UNINTERPRETED;
Z3_CATCH_RETURN(Z3_OP_UNINTERPRETED);
}

1
src/api/api_context.cpp
View file

@ -81,6 +81,7 @@ namespace api {
m_fpa_util(m()),
m_sutil(m()),
m_recfun(m()),
m_rs_util(m()),
m_last_result(m()),
m_ast_trail(m()),
m_pmanager(m_limit) {

4
src/api/api_context.h
View file

@ -33,6 +33,7 @@ Revision History:
#include "ast/fpa_decl_plugin.h"
#include "ast/recfun_decl_plugin.h"
#include "ast/special_relations_decl_plugin.h"
#include "ast/refinement_sort_decl_plugin.h"
#include "ast/rewriter/seq_rewriter.h"
#include "smt/params/smt_params.h"
#include "smt/smt_kernel.h"
@ -89,6 +90,7 @@ namespace api {
fpa_util m_fpa_util;
seq_util m_sutil;
recfun::util m_recfun;
refinement_sort_util m_rs_util;
// Support for old solver API
smt_params m_fparams;
@ -157,6 +159,7 @@ namespace api {
datatype_util& dtutil() { return m_dt_plugin->u(); }
seq_util& sutil() { return m_sutil; }
recfun::util& recfun() { return m_recfun; }
refinement_sort_util& rsutil() { return m_rs_util; }
family_id get_basic_fid() const { return m_basic_fid; }
family_id get_array_fid() const { return m_array_fid; }
family_id get_arith_fid() const { return m_arith_fid; }
@ -166,6 +169,7 @@ namespace api {
family_id get_pb_fid() const { return m_pb_fid; }
family_id get_fpa_fid() const { return m_fpa_fid; }
family_id get_seq_fid() const { return m_seq_fid; }
family_id get_rs_fid() const { return m_rs_util.fid(); }
datatype_decl_plugin * get_dt_plugin() const { return m_dt_plugin; }
family_id get_special_relations_fid() const { return m_special_relations_fid; }

22
src/api/python/z3/z3.py
View file

@ -629,6 +629,8 @@ def _to_sort_ref(s, ctx):
return ReSortRef(s, ctx)
elif k == Z3_SEQ_SORT:
return SeqSortRef(s, ctx)
elif k == Z3_REFINE_SORT:
return RefinementSortRef(s, ctx)
return SortRef(s, ctx)
def _sort(ctx, a):
@ -10465,3 +10467,23 @@ def TransitiveClosure(f):
The transitive closure R+ is a new relation.
"""
return FuncDeclRef(Z3_mk_transitive_closure(f.ctx_ref(), f.ast), f.ctx)
# Refinement sorts
class RefinementSortRef(SortRef):
"""Refinement sort."""
def basis(self):
return _to_sort_ref(Z3_refine_sort_basis(self.ctx_ref(), self.ast), self.ctx)
def predicate(self):
return _to_expr_ref(Z3_refine_sort_predicate(self.ctx_ref(), self.ast), self.ctx)
def Relax(e):
return _to_expr_ref(Z3_mk_relax(e.ctx_ref(), e.as_ast()), e.ctx)
def Restrict(e, s):
return _to_expr_ref(Z3_mk_restrict(e.ctx_ref(), e.as_ast(), s.as_ast()), e.ctx)
def RefineSort(p):
return _to_sort_ref(Z3_mk_refinement_sort(p.ctx_ref(), p.as_ast()), p.ctx)

10
src/api/python/z3/z3printer.py
View file

@ -46,7 +46,7 @@ _z3_op_to_str = {
Z3_OP_RE_INTERSECT : 'Intersect', Z3_OP_RE_COMPLEMENT : 'Complement',
Z3_OP_FPA_IS_NAN : 'fpIsNaN', Z3_OP_FPA_IS_INF : 'fpIsInf', Z3_OP_FPA_IS_ZERO : 'fpIsZero',
Z3_OP_FPA_IS_NORMAL : 'fpIsNormal', Z3_OP_FPA_IS_SUBNORMAL : 'fpIsSubnormal',
Z3_OP_FPA_IS_NEGATIVE : 'fpIsNegative', Z3_OP_FPA_IS_POSITIVE : 'fpIsPositive',
Z3_OP_FPA_IS_NEGATIVE : 'fpIsNegative', Z3_OP_FPA_IS_POSITIVE : 'fpIsPositive',
}
# List of infix operators
@ -566,6 +566,14 @@ class Formatter:
return seq1('FPSort', (to_format(s.ebits()), to_format(s.sbits())))
elif isinstance(s, z3.ReSortRef):
return seq1('ReSort', (self.pp_sort(s.basis()), ))
elif isinstance(s, z3.RefinementSortRef):
f1 = self.pp_sort(s.basis())
p = s.predicate()
if isinstance(p, z3.ExprRef):
s2 = self.pp_expr(p, 0, [])
else:
s2 = self.pp_fdecl(p, 0, [])
return seq1('RefineSort', [f1, to_format(s2)])
elif isinstance(s, z3.SeqSortRef):
if s.is_string():
return to_format("String")

52
src/api/z3_api.h
View file

@ -159,6 +159,7 @@ typedef enum
Z3_ROUNDING_MODE_SORT,
Z3_SEQ_SORT,
Z3_RE_SORT,
Z3_REFINE_SORT,
Z3_UNKNOWN_SORT = 1000
} Z3_sort_kind;
@ -998,6 +999,11 @@ typedef enum
3 = 011 = Z3_OP_FPA_RM_TOWARD_NEGATIVE,
4 = 100 = Z3_OP_FPA_RM_TOWARD_ZERO.
- Z3_OP_RELAX: takes a term of refinement sort s | p, and injects to sort s.
- Z3_OP_RESTRCIT: takes a term of sort s and projects to refinement sort s | p
- Z3_OP_INTERNAL: internal (often interpreted) symbol, but no additional
information is exposed. Tools may use the string representation of the
function declaration to obtain more information.
@ -1302,6 +1308,10 @@ typedef enum {
Z3_OP_FPA_BVWRAP,
Z3_OP_FPA_BV2RM,
// injection and projection to refinement sorts
Z3_OP_RELAX = 0xc000,
Z3_OP_RESTRICT,
Z3_OP_INTERNAL,
Z3_OP_UNINTERPRETED
@ -3771,6 +3781,48 @@ extern "C" {
/*@}*/
/** @name Refinement sort */
/*@{*/
/**
\brief creates refinement sort given lambda expression f (of sort Array(s, Bool))
or given function f with signature s -> Bool
def_API('Z3_mk_refinement_sort', SORT, (_in(CONTEXT), _in(AST)))
*/
Z3_sort Z3_API Z3_mk_refinement_sort(Z3_context c, Z3_ast f);
/**
\brief retrieve base sort from refinement sort
def_API('Z3_refine_sort_basis', SORT, (_in(CONTEXT), _in(SORT)))
*/
Z3_sort Z3_API Z3_refine_sort_basis(Z3_context c, Z3_sort s);
/**
\brief retrieve predicate from refinement sort
def_API('Z3_refine_sort_predicate', AST, (_in(CONTEXT), _in(SORT)))
*/
Z3_ast Z3_API Z3_refine_sort_predicate(Z3_context c, Z3_sort s);
/**
\brief takes term e of refinement sort s | p and produces injection into s.
def_API('Z3_mk_relax', AST, (_in(CONTEXT), _in(AST)))
*/
Z3_ast Z3_API Z3_mk_relax(Z3_context c, Z3_ast e);
/**
\brief takes term e of refinement sort s | p and produces injection into s.
def_API('Z3_mk_restrict', AST, (_in(CONTEXT), _in(AST), _in(SORT)))
*/
Z3_ast Z3_API Z3_mk_restrict(Z3_context c, Z3_ast e, Z3_sort s);
/*@}*/
/** @name Quantifiers */
/*@{*/
/**

1
src/ast/CMakeLists.txt
View file

@ -38,6 +38,7 @@ z3_add_component(ast
pb_decl_plugin.cpp
pp.cpp
recfun_decl_plugin.cpp
refinement_sort_decl_plugin.cpp
reg_decl_plugins.cpp
seq_decl_plugin.cpp
shared_occs.cpp

4
src/ast/reg_decl_plugins.cpp
View file

@ -28,6 +28,7 @@ Revision History:
#include "ast/pb_decl_plugin.h"
#include "ast/fpa_decl_plugin.h"
#include "ast/special_relations_decl_plugin.h"
#include "ast/refinement_sort_decl_plugin.h"
void reg_decl_plugins(ast_manager & m) {
if (!m.get_plugin(m.mk_family_id(symbol("arith")))) {
@ -60,4 +61,7 @@ void reg_decl_plugins(ast_manager & m) {
if (!m.get_plugin(m.mk_family_id(symbol("special_relations")))) {
m.register_plugin(symbol("special_relations"), alloc(special_relations_decl_plugin));
}
if (!m.get_plugin(m.mk_family_id(symbol("refinement_sort")))) {
m.register_plugin(symbol("refinement_sort"), alloc(refinement_sort_decl_plugin));
}
}

4
src/ast/static_features.cpp
View file

@ -26,6 +26,7 @@ static_features::static_features(ast_manager & m):
m_arrayutil(m),
m_fpautil(m),
m_sequtil(m),
m_rsutil(m),
m_bfid(m.get_basic_family_id()),
m_afid(m.mk_family_id("arith")),
m_lfid(m.mk_family_id("label")),
@ -80,6 +81,7 @@ void static_features::reset() {
m_has_bv = false;
m_has_fpa = false;
m_has_sr = false;
m_has_rs = false;
m_has_str = false;
m_has_seq_non_str = false;
m_has_arrays = false;
@ -279,6 +281,8 @@ void static_features::update_core(expr * e) {
m_has_fpa = true;
if (is_app(e) && to_app(e)->get_family_id() == m_srfid)
m_has_sr = true;
if (m_rsutil.is_refine_sort(e))
m_has_rs = true;
if (!m_has_arrays && m_arrayutil.is_array(e))
m_has_arrays = true;
if (!m_has_ext_arrays && m_arrayutil.is_array(e) &&

3
src/ast/static_features.h
View file

@ -26,12 +26,14 @@ Revision History:
#include "ast/fpa_decl_plugin.h"
#include "ast/seq_decl_plugin.h"
#include "ast/special_relations_decl_plugin.h"
#include "ast/refinement_sort_decl_plugin.h"
#include "util/map.h"
struct static_features {
ast_manager & m;
arith_util m_autil;
bv_util m_bvutil;
refinement_sort_util m_rsutil;
array_util m_arrayutil;
fpa_util m_fpautil;
seq_util m_sequtil;
@ -82,6 +84,7 @@ struct static_features {
bool m_has_bv; //
bool m_has_fpa; //
bool m_has_sr; // has special relations
bool m_has_rs; // has refinement sorts
bool m_has_str; // has String-typed terms
bool m_has_seq_non_str; // has non-String-typed Sequence terms
bool m_has_arrays; //

1
src/smt/CMakeLists.txt
View file

@ -65,6 +65,7 @@ z3_add_component(smt
theory_opt.cpp
theory_pb.cpp
theory_recfun.cpp
theory_refinement_sort.cpp
theory_seq.cpp
theory_special_relations.cpp
theory_str.cpp

3
src/smt/smt_internalizer.cpp
View file

@ -840,7 +840,8 @@ namespace smt {
\brief Internalize an uninterpreted function application or constant.
*/
void context::internalize_uninterpreted(app * n) {
SASSERT(!e_internalized(n));
if (e_internalized(n))
return;
// process args
for (expr * arg : *n) {
internalize_rec(arg, false);

7
src/smt/smt_setup.cpp
View file

@ -34,6 +34,7 @@ Revision History:
#include "smt/theory_seq_empty.h"
#include "smt/theory_seq.h"
#include "smt/theory_special_relations.h"
#include "smt/theory_refinement_sort.h"
#include "smt/theory_pb.h"
#include "smt/theory_fpa.h"
#include "smt/theory_str.h"
@ -942,6 +943,10 @@ namespace smt {
m_context.register_plugin(alloc(smt::theory_special_relations, m_manager));
}
void setup::setup_refinement_sort() {
m_context.register_plugin(alloc(smt::theory_refinement_sort, m_manager));
}
void setup::setup_unknown() {
static_features st(m_manager);
ptr_vector<expr> fmls;
@ -958,6 +963,7 @@ namespace smt {
setup_card();
setup_fpa();
if (st.m_has_sr) setup_special_relations();
if (st.m_has_rs) setup_refinement_sort();
}
void setup::setup_unknown(static_features & st) {
@ -975,6 +981,7 @@ namespace smt {
setup_fpa();
setup_recfuns();
if (st.m_has_sr) setup_special_relations();
if (st.m_has_rs) setup_refinement_sort();
return;
}

1
src/smt/smt_setup.h
View file

@ -83,6 +83,7 @@ namespace smt {
void setup_LRA();
void setup_CSP();
void setup_special_relations();
void setup_refinement_sort();
void setup_AUFLIA(bool simple_array = true);
void setup_AUFLIA(static_features const & st);
void setup_AUFLIRA(bool simple_array = true);

2
src/solver/tactic2solver.cpp
View file

@ -188,7 +188,7 @@ lbool tactic2solver::check_sat_core2(unsigned num_assumptions, expr * const * as
}
break;
}
m_mc = concat(g->mc(), m_mc.get());
m_mc = concat(m_mc.get(), g->mc());
if (m_mc && md) {
(*m_mc)(md);
}

4
src/tactic/bv/bv_size_reduction_tactic.cpp
View file

@ -178,7 +178,7 @@ public:
void run(goal & g, model_converter_ref & mc) {
if (g.inconsistent())
return;
TRACE("before_bv_size_reduction", g.display(tout););
TRACE("goal", g.display(tout););
m_produce_models = g.models_enabled();
mc = nullptr;
m_mc = nullptr;
@ -365,7 +365,7 @@ public:
m_fmc = nullptr;
}
report_tactic_progress(":bv-reduced", num_reduced);
TRACE("after_bv_size_reduction", g.display(tout); if (m_mc) m_mc->display(tout););
TRACE("goal", g.display(tout); if (m_mc) m_mc->display(tout););
}
};

4
src/tactic/core/elim_uncnstr_tactic.cpp
View file

@ -779,7 +779,7 @@ class elim_uncnstr_tactic : public tactic {
void run(goal_ref const & g, goal_ref_buffer & result) {
bool produce_proofs = g->proofs_enabled();
TRACE("elim_uncnstr_bug", g->display(tout););
TRACE("goal", g->display(tout););
tactic_report report("elim-uncnstr", *g);
m_vars.reset();
collect_occs p;
@ -826,7 +826,7 @@ class elim_uncnstr_tactic : public tactic {
m_rw = nullptr;
result.push_back(g.get());
g->inc_depth();
TRACE("elim_uncnstr_bug", g->display(tout););
TRACE("goal", g->display(tout););
return;
}
modified = false;