z3-z3-4.13.0.src.test.smt2print_parse.cpp Maven / Gradle / Ivy
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/*++
Copyright (c) 2015 Microsoft Corporation
--*/
// This is to test the print-parse facilities over the API
// for SMT-LIB2.
#include "api/z3.h"
#include "util/debug.h"
#include
void test_print(Z3_context ctx, Z3_ast_vector av) {
Z3_set_ast_print_mode(ctx, Z3_PRINT_SMTLIB2_COMPLIANT);
Z3_ast* args = new Z3_ast[Z3_ast_vector_size(ctx, av)];
for (unsigned i = 0; i < Z3_ast_vector_size(ctx, av); ++i) {
args[i] = Z3_ast_vector_get(ctx, av, i);
}
Z3_ast a = Z3_mk_and(ctx, Z3_ast_vector_size(ctx, av), args);
Z3_inc_ref(ctx, a);
delete[] args;
char const* spec1 = Z3_benchmark_to_smtlib_string(ctx, "test", nullptr, nullptr, nullptr, 0, nullptr, a);
Z3_dec_ref(ctx, a);
std::cout << "spec1: benchmark->string\n" << spec1 << "\n";
std::cout << "attempting to parse spec1...\n";
Z3_ast_vector b =
Z3_parse_smtlib2_string(ctx,
spec1,
0,
nullptr,
nullptr,
0,
nullptr,
nullptr);
std::cout << "parse successful, converting ast->string\n";
Z3_ast_vector_inc_ref(ctx, b);
char const* spec2 = Z3_ast_vector_to_string(ctx, b);
std::cout << "spec2: string->ast->string\n" << spec2 << "\n";
Z3_ast_vector_dec_ref(ctx, b);
}
void test_parseprint(char const* spec) {
Z3_context ctx = Z3_mk_context(nullptr);
std::cout << "spec:\n" << spec << "\n";
Z3_ast_vector a =
Z3_parse_smtlib2_string(ctx,
spec,
0,
nullptr,
nullptr,
0,
nullptr,
nullptr);
std::cout << "done parsing\n";
Z3_ast_vector_inc_ref(ctx, a);
test_print(ctx, a);
std::cout << "done printing\n";
Z3_ast_vector_dec_ref(ctx, a);
Z3_del_context(ctx);
}
static bool is_error = false;
void setError(Z3_context c, Z3_error_code e) {
is_error = true;
}
void test_eval(Z3_context ctx, Z3_string spec, bool shouldFail) {
std::cout << "spec:\n" << spec << "\n";
std::string resp;
is_error = false;
resp = Z3_eval_smtlib2_string(ctx, spec);
if (!is_error)
std::cout << "response:\n" << resp << "\n";
if (shouldFail != is_error) {
if (shouldFail)
throw std::runtime_error("should have failed");
else
throw std::runtime_error("should have succeeded");
}
}
void test_repeated_eval() {
// Z3_eval_smtlib2_string reuses the parser and the scanner
// when called repeteadly on the same context.
//
// These tests rehearse that earlier calls do not interfere
// with the result of later calls if the SMT queries are independent.
char const* spec1 =
"(push)\n"
"(declare-datatypes (T) ((list (nil) (cons (car T) (cdr list)))))\n"
"(declare-const x Int)\n"
"(declare-const l (list Int))\n"
"(declare-fun f ((list Int)) Bool)\n"
"(assert (f (cons x l)))\n"
"(check-sat)\n"
"(pop)\n";
char const* spec2 =
"(push)\n"
"(declare-const a (Array Int Int))\n"
"(declare-const b (Array (Array Int Int) Bool))\n"
"(assert (select b a))\n"
"(assert (= b ((as const (Array (Array Int Int) Bool)) true)))\n"
"(assert (= b (store b a true)))\n"
"(declare-const b1 (Array Bool Bool))\n"
"(declare-const b2 (Array Bool Bool))\n"
"(assert (= ((as const (Array Bool Bool)) false) ((_ map and) b1 b2)))\n"
"(check-sat)\n"
"(pop)\n";
char const* spec3 =
"(push)\n"
"(declare-const a@ (Array Int Int))\n"
"(declare-const b (Array (Array Int Int) Bool))\n"
"(assert (select b a))\n"
"(check-sat)\n"
"(pop)\n";
char const* spec4 =
"(push)\n"
"(declare-const a (Array Int Int))\n"
"(declare-const b# (Array (Array Int Int) Bool))\n"
"(assert (select b a))\n"
"(check-sat)\n"
"(pop)\n";
Z3_context ctx = Z3_mk_context(nullptr);
Z3_set_error_handler(ctx, setError);
std::cout << "testing Z3_eval_smtlib2_string\n";
try {
test_eval(ctx, spec1, false);
std::cout << "successful call after successful call\n";
test_eval(ctx, spec2, false);
std::cout << "failing call after successful call\n";
test_eval(ctx, spec3, true);
std::cout << "failing call after failing call\n";
test_eval(ctx, spec4, true);
std::cout << "successful call after failing call\n";
test_eval(ctx, spec1, false);
}
catch(...) {
std::cout << "Error: uncaught exception\n";
throw;
}
std::cout << "done evaluating\n";
Z3_del_context(ctx);
}
void test_name(Z3_string spec, Z3_string expected_name) {
Z3_context ctx = Z3_mk_context(nullptr);
Z3_set_error_handler(ctx, setError);
std::cout << "spec:\n" << spec << "\n";
is_error = false;
Z3_ast_vector a =
Z3_parse_smtlib2_string(ctx,
spec,
0,
nullptr,
nullptr,
0,
nullptr,
nullptr);
std::cout << "done parsing\n";
ENSURE(is_error == (expected_name == nullptr));
if (is_error) {
Z3_del_context(ctx);
return;
}
Z3_ast_vector_inc_ref(ctx, a);
ENSURE(Z3_ast_vector_size(ctx, a) == 1)
Z3_ast c = Z3_ast_vector_get(ctx, a, 0);
Z3_inc_ref(ctx, c);
Z3_app app = Z3_to_app(ctx, c);
Z3_func_decl decl = Z3_get_app_decl(ctx, app);
Z3_symbol symbol = Z3_get_decl_name(ctx, decl);
Z3_string name = Z3_get_symbol_string(ctx, symbol);
bool success = std::string(name) == std::string(expected_name);
Z3_dec_ref(ctx, c);
Z3_ast_vector_dec_ref(ctx, a);
Z3_del_context(ctx);
ENSURE(success);
}
void test_symbol_escape() {
#define SYMBOL_ASSERTION(N) \
"(declare-const " N " Bool)\n" \
"(assert " N ")\n" \
"(check-sat)\n"
std::cout << "testing Z3_eval_smtlib2_string\n";
try {
test_name(SYMBOL_ASSERTION("|a|"), "a");
test_name(SYMBOL_ASSERTION("|a\\|"), nullptr);
test_name(SYMBOL_ASSERTION("|a\\||"), "a|");
test_name(SYMBOL_ASSERTION("|a\\\\|"), "a\\");
test_name(SYMBOL_ASSERTION("|a\\\\||"), nullptr);
test_name(SYMBOL_ASSERTION("|a\\a|"), "a\\a");
test_name(SYMBOL_ASSERTION("|a\\a"), nullptr);
}
catch(...) {
std::cout << "Error: uncaught exception\n";
throw;
}
std::cout << "done evaluating\n";
}
void tst_smt2print_parse() {
// test basic datatypes
char const* spec1 =
"(declare-datatypes (T) ((list (nil) (cons (car T) (cdr list)))))\n"
"(declare-const x Int)\n"
"(declare-const l (list Int))\n"
"(declare-fun f ((list Int)) Bool)\n"
"(assert (f (cons x l)))\n";
test_parseprint(spec1);
// test basic arrays
char const* spec2 =
"(declare-const x Int)\n"
"(declare-const a (Array Int Int))\n"
"(declare-const b (Array (Array Int Int) Bool))\n"
"(assert (select b a))\n"
"(assert (= b ((as const (Array (Array Int Int) Bool)) true)))\n"
"(assert (= b (store b a true)))\n"
"(declare-const b1 (Array Bool Bool))\n"
"(declare-const b2 (Array Bool Bool))\n"
"(assert (= ((as const (Array Bool Bool)) false) ((_ map and) b1 b2)))\n";
// TBD: const, map, store
test_parseprint(spec2);
// Test mutually recursive datatypes
char const* spec3 =
"(declare-datatypes () ((list (nil) (cons (car tree) (cdr list))) (tree (leaf) (node (n list)))))\n"
"(declare-const x tree)\n"
"(declare-const l list)\n"
"(declare-fun f (list) Bool)\n"
"(assert (f (cons x l)))\n";
test_parseprint(spec3);
// Test arithmetic
char const* spec4 =
"(declare-const x Real)\n"
"(declare-const y Int)\n"
"(assert (= x 0.0))\n"
"(assert (= y 6))\n"
"(assert (> (/ x 1.4) (to_real y)))";
test_parseprint(spec4);
// Test bit-vectors
char const* spec5 =
"(declare-const x (_ BitVec 4))\n"
"(declare-const y (_ BitVec 4))\n"
"(assert (bvule x (bvmul y (concat ((_ extract 2 0) x) ((_ extract 3 3) #xf0)))))";
test_parseprint(spec5);
// Test strings
char const* spec6 =
"(assert (= \"abc\" \"abc\"))";
test_parseprint(spec6);
// Test ?
test_repeated_eval();
test_symbol_escape();
}