[英]IZ3 cpp_example segmentation fault
使用最新版本的IZ3并运行cpp_example时出现段错误。
复制:
git clone https://git01.codeplex.com/z3
interp
: git checkout interp
README
的构建说明进行构建 cpp_example
: cd build ; make cpp_example
cd build ; make cpp_example
cpp_example
结果:
unsat core example 3 [1] 30687 segmentation fault ./cpp_example
如果我在master
构建, cpp_example
对我cpp_example
。
我从2012年12月的一些邮件列表中读到一条消息,指出无法针对最新版本的Z3构建Z3的内插版本,但这是一项正在进行的工作。
IZ3仍然不能与Z3版本4一起使用吗?
如果是,是否有关于如何针对较早版本的Z3构建插值源的说明? (开头:从哪里获得IZ3-3.2的源代码或其他?)
Linux __ 2.6.37.6-24-desktop #1 SMP PREEMPT __ i686 i686 i386 GNU/Linux
g ++:
Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/usr/lib/gcc/i586-suse-linux/4.5/lto-wrapper Target: i586-suse-linux Configured with: ../configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --libdir=/usr/lib --libexecdir=/usr/lib --enable-languages=c,c++,objc,fortran,obj-c++,java,ada --enable-checking=release --with-gxx-include-dir=/usr/include/c++/4.5 --enable-ssp --disable-libssp --disable-plugin --with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux' --disable-libgcj --disable-libmudflap --with-slibdir=/lib --with-system-zlib --enable-__cxa_atexit --enable-libstdcxx-allocator=new --disable-libstdcxx-pch --enable-version-specific-runtime-libs --program-suffix=-4.5 --enable-linux-futex --without-system-libunwind --enable-gold --with-plugin-ld=/usr/bin/gold --with-arch-32=i586 --with-tune=generic --build=i586-suse-linux Thread model: posix
正是unsat_core_example3()崩溃了。 我在问题中expr_substitution::find()
了expr_substitution::find()
proofs_enabled()== false的问题
但是在rewriter_tpl<Config>::visit(expr * t, unsigned max_depth)
,ProofGen == true,但是从调用'm_cfg.get_subst(t,new_t,new_t_pr)'中,new_t_pr未初始化。
valgrind必须说的是:
==26885== Conditional jump or move depends on uninitialised value(s)
==26885== at 0x4C21802: bool rewriter_tpl<th_rewriter_cfg>::visit<true>(expr*, unsigned int) (ast.h:1562)
==26885== by 0x4C21A77: void rewriter_tpl<th_rewriter_cfg>::process_app<true>(app*, rewriter_core::frame&) (rewriter_def.h:179)
==26885== by 0x4C23303: void rewriter_tpl<th_rewriter_cfg>::resume_core<true>(obj_ref<expr, ast_manager>&, obj_ref<app, ast_manager>&) (rewriter_def.h:602)
==26885== by 0x4B1EF9C: propagate_values_tactic::imp::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (propagate_values_tactic.cpp:128)
==26885== by 0x4B21591: propagate_values_tactic::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (propagate_values_tactic.cpp:249)
==26885== by 0x4B8BA9A: cleanup_tactical::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (tactical.cpp:1192)
==26885== by 0x4B8ED2D: and_then_tactical::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (tactical.cpp:157)
==26885== by 0x4B90914: and_then_tactical::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (tactical.cpp:170)
==26885== by 0x4B8ED2D: and_then_tactical::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (tactical.cpp:157)
==26885== by 0x4B8ED2D: and_then_tactical::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (tactical.cpp:157)
==26885== by 0x4B90914: and_then_tactical::operator()(ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (tactical.cpp:170)
==26885== by 0x4B94C1A: exec(tactic&, ref<goal> const&, sref_buffer<goal, 16u>&, ref<model_converter>&, ref<proof_converter>&, obj_ref<dependency_manager<ast_manager::expr_dependency_config>::dependency, ast_manager>&) (tactic.cpp:179)
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