19 #include "clang/Config/config.h" 21 using namespace clang;
24 #if CLANG_ANALYZER_WITH_Z3 32 friend class Z3Context;
37 Z3Config() : Config(Z3_mk_config()) {
39 Z3_set_param_value(Config,
"model",
"true");
41 Z3_set_param_value(Config,
"proof",
"false");
43 Z3_set_param_value(Config,
"timeout",
"15000");
46 ~Z3Config() { Z3_del_config(Config); }
50 void Z3ErrorHandler(Z3_context Context, Z3_error_code
Error) {
51 llvm::report_fatal_error(
"Z3 error: " +
52 llvm::Twine(Z3_get_error_msg_ex(Context, Error)));
61 Context = Z3_mk_context_rc(Z3Config().Config);
64 Z3_set_error_handler(Context, Z3ErrorHandler);
67 virtual ~Z3Context() {
68 Z3_del_context(Context);
75 friend class Z3Solver;
83 Z3Sort(Z3Context &
C, Z3_sort ZS) :
SMTSort(), Context(C), Sort(ZS) {
84 Z3_inc_ref(Context.Context, reinterpret_cast<Z3_ast>(Sort));
88 Z3Sort(
const Z3Sort &Copy)
89 :
SMTSort(), Context(Copy.Context), Sort(Copy.Sort) {
90 Z3_inc_ref(Context.Context, reinterpret_cast<Z3_ast>(Sort));
94 Z3Sort(Z3Sort &&
Move) :
SMTSort(), Context(
Move.Context), Sort(nullptr) {
95 *
this = std::move(
Move);
99 Z3Sort &operator=(Z3Sort &&
Move) {
102 Z3_dec_ref(Context.Context, reinterpret_cast<Z3_ast>(Sort));
111 Z3_dec_ref(Context.Context, reinterpret_cast<Z3_ast>(Sort));
114 bool isBitvectorSortImpl()
const override {
115 return (Z3_get_sort_kind(Context.Context, Sort) == Z3_BV_SORT);
118 bool isFloatSortImpl()
const override {
119 return (Z3_get_sort_kind(Context.Context, Sort) == Z3_FLOATING_POINT_SORT);
122 bool isBooleanSortImpl()
const override {
123 return (Z3_get_sort_kind(Context.Context, Sort) == Z3_BOOL_SORT);
126 unsigned getBitvectorSortSizeImpl()
const override {
127 return Z3_get_bv_sort_size(Context.Context, Sort);
130 unsigned getFloatSortSizeImpl()
const override {
131 return Z3_fpa_get_ebits(Context.Context, Sort) +
132 Z3_fpa_get_sbits(Context.Context, Sort);
135 bool equal_to(
SMTSort const &Other)
const override {
136 return Z3_is_eq_sort(Context.Context, Sort,
137 static_cast<const Z3Sort &>(Other).Sort);
140 Z3Sort &operator=(
const Z3Sort &
Move) {
141 Z3_inc_ref(Context.Context, reinterpret_cast<Z3_ast>(Move.Sort));
142 Z3_dec_ref(Context.Context, reinterpret_cast<Z3_ast>(Sort));
147 void print(raw_ostream &OS)
const override {
148 OS << Z3_sort_to_string(Context.Context, Sort);
152 static const Z3Sort &toZ3Sort(
const SMTSort &S) {
153 return static_cast<const Z3Sort &
>(S);
156 class Z3Expr :
public SMTExpr {
157 friend class Z3Solver;
164 Z3Expr(Z3Context &
C, Z3_ast ZA) :
SMTExpr(), Context(C), AST(ZA) {
165 Z3_inc_ref(Context.Context, AST);
169 Z3Expr(
const Z3Expr &Copy) :
SMTExpr(), Context(Copy.Context), AST(Copy.AST) {
170 Z3_inc_ref(Context.Context, AST);
174 Z3Expr(Z3Expr &&
Move) :
SMTExpr(), Context(
Move.Context), AST(nullptr) {
175 *
this = std::move(
Move);
179 Z3Expr &operator=(Z3Expr &&
Move) {
182 Z3_dec_ref(Context.Context, AST);
191 Z3_dec_ref(Context.Context, AST);
194 void Profile(llvm::FoldingSetNodeID &
ID)
const override {
195 ID.AddInteger(Z3_get_ast_hash(Context.Context, AST));
199 bool equal_to(
SMTExpr const &Other)
const override {
200 assert(Z3_is_eq_sort(Context.Context, Z3_get_sort(Context.Context, AST),
201 Z3_get_sort(Context.Context,
202 static_cast<const Z3Expr &>(Other).AST)) &&
203 "AST's must have the same sort");
204 return Z3_is_eq_ast(Context.Context, AST,
205 static_cast<const Z3Expr &>(Other).AST);
209 Z3Expr &operator=(
const Z3Expr &
Move) {
210 Z3_inc_ref(Context.Context, Move.AST);
211 Z3_dec_ref(Context.Context, AST);
216 void print(raw_ostream &OS)
const override {
217 OS << Z3_ast_to_string(Context.Context, AST);
221 static const Z3Expr &toZ3Expr(
const SMTExpr &E) {
222 return static_cast<const Z3Expr &
>(E);
226 friend class Z3Solver;
233 Z3Model(Z3Context &
C, Z3_model ZM) : Context(C), Model(ZM) {
234 assert(C.Context !=
nullptr);
235 Z3_model_inc_ref(Context.Context, Model);
239 Z3Model(
const Z3Model &Copy) : Context(Copy.Context), Model(Copy.Model) {
240 Z3_model_inc_ref(Context.Context, Model);
244 Z3Model(Z3Model &&
Move) : Context(
Move.Context), Model(nullptr) {
245 *
this = std::move(
Move);
249 Z3Model &operator=(Z3Model &&
Move) {
252 Z3_model_dec_ref(Context.Context, Model);
254 Move.Model =
nullptr;
261 Z3_model_dec_ref(Context.Context, Model);
264 void print(raw_ostream &OS)
const {
265 OS << Z3_model_to_string(Context.Context, Model);
268 LLVM_DUMP_METHOD
void dump()
const { print(llvm::errs()); }
272 static const llvm::fltSemantics &getFloatSemantics(
unsigned BitWidth) {
275 llvm_unreachable(
"Unsupported floating-point semantics!");
278 return llvm::APFloat::IEEEhalf();
280 return llvm::APFloat::IEEEsingle();
282 return llvm::APFloat::IEEEdouble();
284 return llvm::APFloat::IEEEquad();
289 static bool areEquivalent(
const llvm::fltSemantics &LHS,
290 const llvm::fltSemantics &RHS) {
291 return (llvm::APFloat::semanticsPrecision(LHS) ==
292 llvm::APFloat::semanticsPrecision(RHS)) &&
293 (llvm::APFloat::semanticsMinExponent(LHS) ==
294 llvm::APFloat::semanticsMinExponent(RHS)) &&
295 (llvm::APFloat::semanticsMaxExponent(LHS) ==
296 llvm::APFloat::semanticsMaxExponent(RHS)) &&
297 (llvm::APFloat::semanticsSizeInBits(LHS) ==
298 llvm::APFloat::semanticsSizeInBits(RHS));
303 typedef llvm::ImmutableSet<std::pair<SymbolRef, Z3Expr>> ConstraintZ3Ty;
309 friend class Z3ConstraintManager;
316 Z3Solver() :
SMTSolver(), Solver(Z3_mk_simple_solver(Context.Context)) {
317 Z3_solver_inc_ref(Context.Context, Solver);
321 Z3Solver(
const Z3Solver &Copy)
322 :
SMTSolver(), Context(Copy.Context), Solver(Copy.Solver) {
323 Z3_solver_inc_ref(Context.Context, Solver);
327 Z3Solver(Z3Solver &&
Move)
329 *
this = std::move(
Move);
333 Z3Solver &operator=(Z3Solver &&
Move) {
336 Z3_solver_dec_ref(Context.Context, Solver);
337 Solver =
Move.Solver;
338 Move.Solver =
nullptr;
345 Z3_solver_dec_ref(Context.Context, Solver);
348 void addConstraint(
const SMTExprRef &Exp)
const override {
349 Z3_solver_assert(Context.Context, Solver, toZ3Expr(*Exp).AST);
353 return std::make_shared<Z3Sort>(Context, Z3_mk_bool_sort(Context.Context));
356 SMTSortRef getBitvectorSort(
unsigned BitWidth)
override {
357 return std::make_shared<Z3Sort>(Context,
358 Z3_mk_bv_sort(Context.Context, BitWidth));
362 return std::make_shared<Z3Sort>(
363 Context, Z3_get_sort(Context.Context, toZ3Expr(*Exp).AST));
367 return std::make_shared<Z3Sort>(Context,
368 Z3_mk_fpa_sort_16(Context.Context));
372 return std::make_shared<Z3Sort>(Context,
373 Z3_mk_fpa_sort_32(Context.Context));
377 return std::make_shared<Z3Sort>(Context,
378 Z3_mk_fpa_sort_64(Context.Context));
382 return std::make_shared<Z3Sort>(Context,
383 Z3_mk_fpa_sort_128(Context.Context));
387 return std::make_shared<Z3Expr>(toZ3Expr(E));
392 Z3Expr(Context, Z3_mk_bvneg(Context.Context, toZ3Expr(*Exp).AST)));
397 Z3Expr(Context, Z3_mk_bvnot(Context.Context, toZ3Expr(*Exp).AST)));
402 Z3Expr(Context, Z3_mk_not(Context.Context, toZ3Expr(*Exp).AST)));
407 Z3Expr(Context, Z3_mk_bvadd(Context.Context, toZ3Expr(*LHS).AST,
408 toZ3Expr(*RHS).AST)));
413 Z3Expr(Context, Z3_mk_bvsub(Context.Context, toZ3Expr(*LHS).AST,
414 toZ3Expr(*RHS).AST)));
419 Z3Expr(Context, Z3_mk_bvmul(Context.Context, toZ3Expr(*LHS).AST,
420 toZ3Expr(*RHS).AST)));
425 Z3Expr(Context, Z3_mk_bvsrem(Context.Context, toZ3Expr(*LHS).AST,
426 toZ3Expr(*RHS).AST)));
431 Z3Expr(Context, Z3_mk_bvurem(Context.Context, toZ3Expr(*LHS).AST,
432 toZ3Expr(*RHS).AST)));
437 Z3Expr(Context, Z3_mk_bvsdiv(Context.Context, toZ3Expr(*LHS).AST,
438 toZ3Expr(*RHS).AST)));
443 Z3Expr(Context, Z3_mk_bvudiv(Context.Context, toZ3Expr(*LHS).AST,
444 toZ3Expr(*RHS).AST)));
449 Z3Expr(Context, Z3_mk_bvshl(Context.Context, toZ3Expr(*LHS).AST,
450 toZ3Expr(*RHS).AST)));
455 Z3Expr(Context, Z3_mk_bvashr(Context.Context, toZ3Expr(*LHS).AST,
456 toZ3Expr(*RHS).AST)));
461 Z3Expr(Context, Z3_mk_bvlshr(Context.Context, toZ3Expr(*LHS).AST,
462 toZ3Expr(*RHS).AST)));
467 Z3Expr(Context, Z3_mk_bvxor(Context.Context, toZ3Expr(*LHS).AST,
468 toZ3Expr(*RHS).AST)));
473 Z3Expr(Context, Z3_mk_bvor(Context.Context, toZ3Expr(*LHS).AST,
474 toZ3Expr(*RHS).AST)));
479 Z3Expr(Context, Z3_mk_bvand(Context.Context, toZ3Expr(*LHS).AST,
480 toZ3Expr(*RHS).AST)));
485 Z3Expr(Context, Z3_mk_bvult(Context.Context, toZ3Expr(*LHS).AST,
486 toZ3Expr(*RHS).AST)));
491 Z3Expr(Context, Z3_mk_bvslt(Context.Context, toZ3Expr(*LHS).AST,
492 toZ3Expr(*RHS).AST)));
497 Z3Expr(Context, Z3_mk_bvugt(Context.Context, toZ3Expr(*LHS).AST,
498 toZ3Expr(*RHS).AST)));
503 Z3Expr(Context, Z3_mk_bvsgt(Context.Context, toZ3Expr(*LHS).AST,
504 toZ3Expr(*RHS).AST)));
509 Z3Expr(Context, Z3_mk_bvule(Context.Context, toZ3Expr(*LHS).AST,
510 toZ3Expr(*RHS).AST)));
515 Z3Expr(Context, Z3_mk_bvsle(Context.Context, toZ3Expr(*LHS).AST,
516 toZ3Expr(*RHS).AST)));
521 Z3Expr(Context, Z3_mk_bvuge(Context.Context, toZ3Expr(*LHS).AST,
522 toZ3Expr(*RHS).AST)));
527 Z3Expr(Context, Z3_mk_bvsge(Context.Context, toZ3Expr(*LHS).AST,
528 toZ3Expr(*RHS).AST)));
532 Z3_ast Args[2] = {toZ3Expr(*LHS).AST, toZ3Expr(*RHS).AST};
533 return newExprRef(Z3Expr(Context, Z3_mk_and(Context.Context, 2, Args)));
537 Z3_ast Args[2] = {toZ3Expr(*LHS).AST, toZ3Expr(*RHS).AST};
538 return newExprRef(Z3Expr(Context, Z3_mk_or(Context.Context, 2, Args)));
543 Z3Expr(Context, Z3_mk_eq(Context.Context, toZ3Expr(*LHS).AST,
544 toZ3Expr(*RHS).AST)));
549 Z3Expr(Context, Z3_mk_fpa_neg(Context.Context, toZ3Expr(*Exp).AST)));
553 return newExprRef(Z3Expr(
554 Context, Z3_mk_fpa_is_infinite(Context.Context, toZ3Expr(*Exp).AST)));
559 Z3Expr(Context, Z3_mk_fpa_is_nan(Context.Context, toZ3Expr(*Exp).AST)));
563 return newExprRef(Z3Expr(
564 Context, Z3_mk_fpa_is_normal(Context.Context, toZ3Expr(*Exp).AST)));
568 return newExprRef(Z3Expr(
569 Context, Z3_mk_fpa_is_zero(Context.Context, toZ3Expr(*Exp).AST)));
573 SMTExprRef RoundingMode = getFloatRoundingMode();
576 Z3_mk_fpa_mul(Context.Context, toZ3Expr(*LHS).AST,
577 toZ3Expr(*RHS).AST, toZ3Expr(*RoundingMode).AST)));
581 SMTExprRef RoundingMode = getFloatRoundingMode();
584 Z3_mk_fpa_div(Context.Context, toZ3Expr(*LHS).AST,
585 toZ3Expr(*RHS).AST, toZ3Expr(*RoundingMode).AST)));
590 Z3Expr(Context, Z3_mk_fpa_rem(Context.Context, toZ3Expr(*LHS).AST,
591 toZ3Expr(*RHS).AST)));
595 SMTExprRef RoundingMode = getFloatRoundingMode();
598 Z3_mk_fpa_add(Context.Context, toZ3Expr(*LHS).AST,
599 toZ3Expr(*RHS).AST, toZ3Expr(*RoundingMode).AST)));
603 SMTExprRef RoundingMode = getFloatRoundingMode();
606 Z3_mk_fpa_sub(Context.Context, toZ3Expr(*LHS).AST,
607 toZ3Expr(*RHS).AST, toZ3Expr(*RoundingMode).AST)));
612 Z3Expr(Context, Z3_mk_fpa_lt(Context.Context, toZ3Expr(*LHS).AST,
613 toZ3Expr(*RHS).AST)));
618 Z3Expr(Context, Z3_mk_fpa_gt(Context.Context, toZ3Expr(*LHS).AST,
619 toZ3Expr(*RHS).AST)));
624 Z3Expr(Context, Z3_mk_fpa_leq(Context.Context, toZ3Expr(*LHS).AST,
625 toZ3Expr(*RHS).AST)));
630 Z3Expr(Context, Z3_mk_fpa_geq(Context.Context, toZ3Expr(*LHS).AST,
631 toZ3Expr(*RHS).AST)));
636 Z3Expr(Context, Z3_mk_fpa_eq(Context.Context, toZ3Expr(*LHS).AST,
637 toZ3Expr(*RHS).AST)));
643 Z3Expr(Context, Z3_mk_ite(Context.Context, toZ3Expr(*Cond).AST,
644 toZ3Expr(*T).AST, toZ3Expr(*F).AST)));
648 return newExprRef(Z3Expr(
649 Context, Z3_mk_sign_ext(Context.Context, i, toZ3Expr(*Exp).AST)));
653 return newExprRef(Z3Expr(
654 Context, Z3_mk_zero_ext(Context.Context, i, toZ3Expr(*Exp).AST)));
657 SMTExprRef mkBVExtract(
unsigned High,
unsigned Low,
659 return newExprRef(Z3Expr(Context, Z3_mk_extract(Context.Context, High, Low,
660 toZ3Expr(*Exp).AST)));
665 Z3Expr(Context, Z3_mk_concat(Context.Context, toZ3Expr(*LHS).AST,
666 toZ3Expr(*RHS).AST)));
670 SMTExprRef RoundingMode = getFloatRoundingMode();
671 return newExprRef(Z3Expr(
673 Z3_mk_fpa_to_fp_float(Context.Context, toZ3Expr(*RoundingMode).AST,
674 toZ3Expr(*From).AST, toZ3Sort(*To).Sort)));
678 SMTExprRef RoundingMode = getFloatRoundingMode();
679 return newExprRef(Z3Expr(
681 Z3_mk_fpa_to_fp_signed(Context.Context, toZ3Expr(*RoundingMode).AST,
682 toZ3Expr(*From).AST, toZ3Sort(*To).Sort)));
686 SMTExprRef RoundingMode = getFloatRoundingMode();
687 return newExprRef(Z3Expr(
689 Z3_mk_fpa_to_fp_unsigned(Context.Context, toZ3Expr(*RoundingMode).AST,
690 toZ3Expr(*From).AST, toZ3Sort(*To).Sort)));
694 SMTExprRef RoundingMode = getFloatRoundingMode();
695 return newExprRef(Z3Expr(
696 Context, Z3_mk_fpa_to_sbv(Context.Context, toZ3Expr(*RoundingMode).AST,
697 toZ3Expr(*From).AST, ToWidth)));
701 SMTExprRef RoundingMode = getFloatRoundingMode();
702 return newExprRef(Z3Expr(
703 Context, Z3_mk_fpa_to_ubv(Context.Context, toZ3Expr(*RoundingMode).AST,
704 toZ3Expr(*From).AST, ToWidth)));
708 return newExprRef(Z3Expr(Context, b ? Z3_mk_true(Context.Context)
709 : Z3_mk_false(Context.Context)));
712 SMTExprRef mkBitvector(
const llvm::APSInt Int,
unsigned BitWidth)
override {
713 const SMTSortRef Sort = getBitvectorSort(BitWidth);
715 Z3Expr(Context, Z3_mk_numeral(Context.Context, Int.toString(10).c_str(),
716 toZ3Sort(*Sort).Sort)));
719 SMTExprRef mkFloat(
const llvm::APFloat Float)
override {
721 getFloatSort(llvm::APFloat::semanticsSizeInBits(Float.getSemantics()));
723 llvm::APSInt Int = llvm::APSInt(Float.bitcastToAPInt(),
false);
724 SMTExprRef Z3Int = mkBitvector(Int, Int.getBitWidth());
725 return newExprRef(Z3Expr(
726 Context, Z3_mk_fpa_to_fp_bv(Context.Context, toZ3Expr(*Z3Int).AST,
727 toZ3Sort(*Sort).Sort)));
732 Z3Expr(Context, Z3_mk_const(Context.Context,
733 Z3_mk_string_symbol(Context.Context, Name),
734 toZ3Sort(*Sort).Sort)));
737 llvm::APSInt getBitvector(
const SMTExprRef &Exp,
unsigned BitWidth,
738 bool isUnsigned)
override {
739 return llvm::APSInt(llvm::APInt(
740 BitWidth, Z3_get_numeral_string(Context.Context, toZ3Expr(*Exp).AST),
744 bool getBoolean(
const SMTExprRef &Exp)
override {
745 return Z3_get_bool_value(Context.Context, toZ3Expr(*Exp).AST) == Z3_L_TRUE;
750 return newExprRef(Z3Expr(Context, Z3_mk_fpa_rne(Context.Context)));
754 uint64_t BitWidth)
override {
755 llvm::Twine Name =
"$" + llvm::Twine(ID);
756 return mkSymbol(Name.str().c_str(), mkSort(Ty, BitWidth));
761 Bool ? Z3_mk_true(Context.Context) : Z3_mk_false(Context.Context);
762 return newExprRef(Z3Expr(Context, AST));
765 SMTExprRef fromAPFloat(
const llvm::APFloat &Float)
override {
767 getFloatSort(llvm::APFloat::semanticsSizeInBits(Float.getSemantics()));
769 llvm::APSInt Int = llvm::APSInt(Float.bitcastToAPInt(),
false);
771 return newExprRef(Z3Expr(
772 Context, Z3_mk_fpa_to_fp_bv(Context.Context, toZ3Expr(*Z3Int).AST,
773 toZ3Sort(*Sort).Sort)));
776 SMTExprRef fromAPSInt(
const llvm::APSInt &Int)
override {
777 SMTSortRef Sort = getBitvectorSort(Int.getBitWidth());
778 Z3_ast AST = Z3_mk_numeral(Context.Context, Int.toString(10).c_str(),
779 toZ3Sort(*Sort).Sort);
780 return newExprRef(Z3Expr(Context, AST));
783 SMTExprRef fromInt(
const char *Int, uint64_t BitWidth)
override {
785 Z3_ast AST = Z3_mk_numeral(Context.Context, Int, toZ3Sort(*Sort).Sort);
786 return newExprRef(Z3Expr(Context, AST));
790 llvm::APFloat &Float,
bool useSemantics) {
791 assert(Sort->isFloatSort() &&
"Unsupported sort to floating-point!");
793 llvm::APSInt Int(Sort->getFloatSortSize(),
true);
794 const llvm::fltSemantics &Semantics =
795 getFloatSemantics(Sort->getFloatSortSize());
796 SMTSortRef BVSort = getBitvectorSort(Sort->getFloatSortSize());
797 if (!toAPSInt(BVSort, AST, Int,
true)) {
801 if (useSemantics && !areEquivalent(Float.getSemantics(), Semantics)) {
802 assert(
false &&
"Floating-point types don't match!");
806 Float = llvm::APFloat(Semantics, Int);
811 llvm::APSInt &Int,
bool useSemantics) {
812 if (Sort->isBitvectorSort()) {
813 if (useSemantics && Int.getBitWidth() != Sort->getBitvectorSortSize()) {
814 assert(
false &&
"Bitvector types don't match!");
824 if (Sort->getBitvectorSortSize() <= 64 ||
825 Sort->getBitvectorSortSize() == 128) {
826 Int = getBitvector(AST, Int.getBitWidth(), Int.isUnsigned());
830 assert(
false &&
"Bitwidth not supported!");
834 if (Sort->isBooleanSort()) {
835 if (useSemantics && Int.getBitWidth() < 1) {
836 assert(
false &&
"Boolean type doesn't match!");
840 Int = llvm::APSInt(llvm::APInt(Int.getBitWidth(), getBoolean(AST)),
845 llvm_unreachable(
"Unsupported sort to integer!");
848 bool getInterpretation(
const SMTExprRef &Exp, llvm::APSInt &Int)
override {
849 Z3Model Model = getModel();
850 Z3_func_decl Func = Z3_get_app_decl(
851 Context.Context, Z3_to_app(Context.Context, toZ3Expr(*Exp).AST));
852 if (Z3_model_has_interp(Context.Context, Model.Model, Func) != Z3_L_TRUE)
857 Z3_model_get_const_interp(Context.Context, Model.Model, Func)));
859 return toAPSInt(Sort, Assign, Int,
true);
862 bool getInterpretation(
const SMTExprRef &Exp, llvm::APFloat &Float)
override {
863 Z3Model Model = getModel();
864 Z3_func_decl Func = Z3_get_app_decl(
865 Context.Context, Z3_to_app(Context.Context, toZ3Expr(*Exp).AST));
866 if (Z3_model_has_interp(Context.Context, Model.Model, Func) != Z3_L_TRUE)
871 Z3_model_get_const_interp(Context.Context, Model.Model, Func)));
873 return toAPFloat(Sort, Assign, Float,
true);
877 Z3_lbool res = Z3_solver_check(Context.Context, Solver);
878 if (res == Z3_L_TRUE)
881 if (res == Z3_L_FALSE)
887 void push()
override {
return Z3_solver_push(Context.Context, Solver); }
889 void pop(
unsigned NumStates = 1)
override {
890 assert(Z3_solver_get_num_scopes(Context.Context, Solver) >= NumStates);
891 return Z3_solver_pop(Context.Context, Solver, NumStates);
897 return Z3Model(Context, Z3_solver_get_model(Context.Context, Solver));
901 void reset()
const override { Z3_solver_reset(Context.Context, Solver); }
903 void print(raw_ostream &OS)
const override {
904 OS << Z3_solver_to_string(Context.Context, Solver);
917 ConstraintZ3Ty CZ = State->get<ConstraintZ3>();
918 ConstraintZ3Ty::iterator I = CZ.begin(), IE = CZ.end();
922 std::vector<SMTExprRef> ASTs;
924 SMTExprRef Constraint = Solver->newExprRef(I++->second);
926 Constraint = Solver->mkAnd(Constraint, Solver->newExprRef(I++->second));
929 Solver->addConstraint(Constraint);
933 bool canReasonAbout(
SVal X)
const override {
934 const TargetInfo &TI = getBasicVals().getContext().getTargetInfo();
940 const SymExpr *Sym = SymVal->getSymbol();
953 if (isa<SymbolData>(Sym))
958 if (
const SymbolCast *SC = dyn_cast<SymbolCast>(Sym))
961 if (
const BinarySymExpr *BSE = dyn_cast<BinarySymExpr>(Sym)) {
962 if (
const SymIntExpr *SIE = dyn_cast<SymIntExpr>(BSE))
965 if (
const IntSymExpr *ISE = dyn_cast<IntSymExpr>(BSE))
968 if (
const SymSymExpr *SSE = dyn_cast<SymSymExpr>(BSE))
973 llvm_unreachable(
"Unsupported expression to reason about!");
978 ConstraintZ3Ty CZ = State->get<ConstraintZ3>();
981 for (ConstraintZ3Ty::iterator I = CZ.begin(), E = CZ.end(); I != E; ++I) {
983 CZ = CZFactory.remove(CZ, *I);
986 return State->set<ConstraintZ3>(CZ);
992 if (checkModel(State, Exp).isConstrainedTrue())
993 return State->add<ConstraintZ3>(std::make_pair(Sym, toZ3Expr(*Exp)));
1003 const char *sep)
override {
1005 ConstraintZ3Ty CZ = St->get<ConstraintZ3>();
1007 OS << nl << sep <<
"Constraints:";
1008 for (ConstraintZ3Ty::iterator I = CZ.begin(), E = CZ.end(); I != E; ++I) {
1009 OS << nl <<
' ' << I->first <<
" : ";
1010 I->second.print(OS);
1021 #if CLANG_ANALYZER_WITH_Z3 1022 return llvm::make_unique<Z3Solver>();
1024 llvm::report_fatal_error(
"Clang was not compiled with Z3 support, rebuild " 1025 "with -DCLANG_ANALYZER_BUILD_Z3=ON",
1031 std::unique_ptr<ConstraintManager>
1033 #if CLANG_ANALYZER_WITH_Z3 1034 return llvm::make_unique<Z3ConstraintManager>(Eng, StMgr.
getSValBuilder());
1036 llvm::report_fatal_error(
"Clang was not compiled with Z3 support, rebuild " 1037 "with -DCLANG_ANALYZER_BUILD_Z3=ON",
A (possibly-)qualified type.
bool maybeDead(SymbolRef sym)
If a symbol is known to be live, marks the symbol as live.
std::unique_ptr< SMTSolver > CreateZ3Solver()
Convenience method to create and Z3Solver object.
Generic base class for SMT exprs.
std::shared_ptr< SMTSort > SMTSortRef
Shared pointer for SMTSorts, used by SMTSolver API.
SVal makeSymbolVal(SymbolRef Sym)
Make an SVal that represents the given symbol.
bool isSpecificBuiltinType(unsigned K) const
Test for a particular builtin type.
SValBuilder & getSValBuilder()
static void dump(llvm::raw_ostream &OS, StringRef FunctionName, ArrayRef< CounterExpression > Expressions, ArrayRef< CounterMappingRegion > Regions)
std::unique_ptr< ConstraintManager > CreateZ3ConstraintManager(ProgramStateManager &statemgr, SubEngine *subengine)
Represents a symbolic expression like 'x' + 3.
virtual QualType getType() const =0
bool isComplexType() const
isComplexType() does not include complex integers (a GCC extension).
const llvm::fltSemantics & getLongDoubleFormat() const
Exposes information about the current target.
Generic base class for SMT contexts.
Represents a cast expression.
Optional< T > getAs() const
Convert to the specified SVal type, returning None if this SVal is not of the desired type...
#define REGISTER_TRAIT_WITH_PROGRAMSTATE(Name, Type)
Declares a program state trait for type Type called Name, and introduce a type named NameTy...
SVal - This represents a symbolic expression, which can be either an L-value or an R-value...
Represents a symbolic expression like 3 - 'x'.
A class responsible for cleaning up unused symbols.
Dataflow Directional Tag Classes.
Represents a symbolic expression involving a binary operator.
Represents symbolic expression that isn't a location.
std::shared_ptr< SMTSolver > SMTSolverRef
Shared pointer for SMTSolvers.
Generic base class for SMT Solvers.
X
Add a minimal nested name specifier fixit hint to allow lookup of a tag name from an outer enclosing ...
Defines the clang::TargetInfo interface.
bool isComplexIntegerType() const
std::shared_ptr< SMTExpr > SMTExprRef
Shared pointer for SMTExprs, used by SMTSolver API.
static llvm::ImmutableListFactory< const FieldRegion * > Factory
Generic base class for SMT sorts.
Represents a symbolic expression like 'x' + 'y'.