[ 0:00] compiling /home/xrockai/src/divine/nightly/test/libcxx/containers/span.pass.cpp
[ 0:00] In file included from /home/xrockai/src/divine/nightly/test/libcxx/containers/span.pass.cpp:24:
[ 0:00] In file included from /dios/libcxx/include/span:132:
[ 0:00] In file included from /dios/libcxx/include/cstddef:44:
[ 0:00] In file included from /dios/include/stddef.h:10:
[ 0:00] In file included from /dios/include/_PDCLIB/int.h:16:
[ 0:00] /dios/include/_PDCLIB/cdefs.h:69:10: warning: Unsupported _ _cplusplus (__cplusplus) (too new) (supported: ISO/IEC 14882:1997, ISO/IEC 14882:2011).
[ 0:00]         #warning Unsupported _ _cplusplus (__cplusplus) (too new) (supported: ISO/IEC 14882:1997, ISO/IEC 14882:2011).
[ 0:00]          ^
[ 0:00] 1 warning generated.
[ 0:02] compiling /dios/lib/config/seqklee.bc
[ 0:02] setting up pass: functionmeta, options = 
[ 0:02] setting up pass: fuse-ctors, options = 
[ 0:02] KLEE: output directory is "/var/obj/divine-nightly/semidbg/test/__test_work_dir.1/_klee_out"
[ 0:04] KLEE: Using Z3 solver backend
[ 0:04] WARNING: this target does not support the llvm.stacksave intrinsic.
[ 0:04] warning: Linking two modules of different target triples: klee_div_zero_check.bc' is 'x86_64-unknown-linux-gnu' whereas 'klee.bc' is 'x86_64-unknown-none-elf'
[ 0:04] 
[ 0:04] KLEE: WARNING: undefined reference to function: __dios_tainted_init
[ 0:07] KLEE: WARNING: undefined reference to function: klee_free
[ 0:07] KLEE: WARNING: undefined reference to function: klee_malloc
[ 0:07] i:1
[ 0:07] KLEE: WARNING ONCE: Alignment of memory from call "klee_malloc" is not modelled. Using alignment of 8.
[ 0:07] about to __boot:0
[ 0:07] about to run the scheduler:0
[ 0:07] KLEE: WARNING ONCE: calling external: __dios_tainted_init() at /dios/libc/sys/start.cpp:49 5
[ 0:07] KLEE: ERROR: /dios/libc/sys/start.cpp:87: failed external call: __dios_tainted_init
[ 0:07] KLEE: NOTE: now ignoring this error at this location
[ 0:07] KLEE: ERROR: EXITING ON ERROR:
[ 0:07] Error: failed external call: __dios_tainted_init
[ 0:07] File: /dios/libc/sys/start.cpp
[ 0:07] Line: 87
[ 0:07] assembly.ll line: 35167
[ 0:07] Stack: 
[ 0:07] 	#000035167 in __dios_start (l=2, argc=1, argv=94357864907784, envp=94357864968712) at /dios/libc/sys/start.cpp:87
[ 0:07] 	#100011176 in _ZN6__dios10sched_nullINS_5ClockINS_10NondetKleeINS_4BaseEEEEEE13run_schedulerINS_7ContextEEEvv () at /dios/sys/sched_null.hpp:163
[ 0:07] 	#200043415 in klee_boot (argc=2, argv=94357833276160) at /dios/arch/klee/boot.c:41
[ 0:07] 
[ 0:07] 
[ 0:07]      1	/* TAGS: c++ fin */
[ 0:07]      2	/* CC_OPTS: -std=c++2a */
[ 0:07]      3	/* VERIFY_OPTS: -o nofail:malloc */
[ 0:07]      4	// -*- C++ -*-
[ 0:07]      5	//===------------------------------ span ---------------------------------===//
[ 0:07]      6	//
[ 0:07]      7	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
[ 0:07]      8	// See https://llvm.org/LICENSE.txt for license information.
[ 0:07]      9	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
[ 0:07]     10	//
[ 0:07]     11	//===---------------------------------------------------------------------===//
[ 0:07]     12	// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17
[ 0:07]     13	
[ 0:07]     14	// <span>
[ 0:07]     15	
[ 0:07]     16	// template<class OtherElementType, size_t OtherExtent>
[ 0:07]     17	//    constexpr span(const span<OtherElementType, OtherExtent>& s) noexcept;
[ 0:07]     18	//
[ 0:07]     19	//  Remarks: This constructor shall not participate in overload resolution unless:
[ 0:07]     20	//      Extent == dynamic_extent || Extent == OtherExtent is true, and
[ 0:07]     21	//      OtherElementType(*)[] is convertible to ElementType(*)[].
[ 0:07]     22	
[ 0:07]     23	
[ 0:07]     24	#include <span>
[ 0:07]     25	#include <cassert>
[ 0:07]     26	#include <string>
[ 0:07]     27	
[ 0:07]     28	#include "test_macros.h"
[ 0:07]     29	
[ 0:07]     30	void checkCV()
[ 0:07]     31	{
[ 0:07]     32	    std::span<               int>   sp;
[ 0:07]     33	//  std::span<const          int>  csp;
[ 0:07]     34	    std::span<      volatile int>  vsp;
[ 0:07]     35	//  std::span<const volatile int> cvsp;
[ 0:07]     36	
[ 0:07]     37	    std::span<               int, 0>   sp0;
[ 0:07]     38	//  std::span<const          int, 0>  csp0;
[ 0:07]     39	    std::span<      volatile int, 0>  vsp0;
[ 0:07]     40	//  std::span<const volatile int, 0> cvsp0;
[ 0:07]     41	
[ 0:07]     42	//  dynamic -> dynamic
[ 0:07]     43	    {
[ 0:07]     44	        std::span<const          int> s1{  sp}; // a span<const          int> pointing at int.
[ 0:07]     45	        std::span<      volatile int> s2{  sp}; // a span<      volatile int> pointing at int.
[ 0:07]     46	        std::span<const volatile int> s3{  sp}; // a span<const volatile int> pointing at int.
[ 0:07]     47	        std::span<const volatile int> s4{ vsp}; // a span<const volatile int> pointing at volatile int.
[ 0:07]     48	        assert(s1.size() + s2.size() + s3.size() + s4.size() == 0);
[ 0:07]     49	    }
[ 0:07]     50	
[ 0:07]     51	//  static -> static
[ 0:07]     52	    {
[ 0:07]     53	        std::span<const          int, 0> s1{  sp0}; // a span<const          int> pointing at int.
[ 0:07]     54	        std::span<      volatile int, 0> s2{  sp0}; // a span<      volatile int> pointing at int.
[ 0:07]     55	        std::span<const volatile int, 0> s3{  sp0}; // a span<const volatile int> pointing at int.
[ 0:07]     56	        std::span<const volatile int, 0> s4{ vsp0}; // a span<const volatile int> pointing at volatile int.
[ 0:07]     57	        assert(s1.size() + s2.size() + s3.size() + s4.size() == 0);
[ 0:07]     58	    }
[ 0:07]     59	
[ 0:07]     60	//  static -> dynamic
[ 0:07]     61	    {
[ 0:07]     62	        std::span<const          int> s1{  sp0};    // a span<const          int> pointing at int.
[ 0:07]     63	        std::span<      volatile int> s2{  sp0};    // a span<      volatile int> pointing at int.
[ 0:07]     64	        std::span<const volatile int> s3{  sp0};    // a span<const volatile int> pointing at int.
[ 0:07]     65	        std::span<const volatile int> s4{ vsp0};    // a span<const volatile int> pointing at volatile int.
[ 0:07]     66	        assert(s1.size() + s2.size() + s3.size() + s4.size() == 0);
[ 0:07]     67	    }
[ 0:07]     68	
[ 0:07]     69	//  dynamic -> static
[ 0:07]     70	    {
[ 0:07]     71	        std::span<const          int, 0> s1{  sp};  // a span<const          int> pointing at int.
[ 0:07]     72	        std::span<      volatile int, 0> s2{  sp};  // a span<      volatile int> pointing at int.
[ 0:07]     73	        std::span<const volatile int, 0> s3{  sp};  // a span<const volatile int> pointing at int.
[ 0:07]     74	        std::span<const volatile int, 0> s4{ vsp};  // a span<const volatile int> pointing at volatile int.
[ 0:07]     75	        assert(s1.size() + s2.size() + s3.size() + s4.size() == 0);
[ 0:07]     76	    }
[ 0:07]     77	}
[ 0:07]     78	
[ 0:07]     79	
[ 0:07]     80	template <typename T>
[ 0:07]     81	constexpr bool testConstexprSpan()
[ 0:07]     82	{
[ 0:07]     83	    std::span<T>    s0{};
[ 0:07]     84	    std::span<T, 0> s1(s0); // dynamic -> static
[ 0:07]     85	    std::span<T>    s2(s1); // static -> dynamic
[ 0:07]     86	    ASSERT_NOEXCEPT(std::span<T>   {s0});
[ 0:07]     87	    ASSERT_NOEXCEPT(std::span<T, 0>{s1});
[ 0:07]     88	    ASSERT_NOEXCEPT(std::span<T>   {s1});
[ 0:07]     89	    ASSERT_NOEXCEPT(std::span<T, 0>{s0});
[ 0:07]     90	
[ 0:07]     91	    return
[ 0:07]     92	        s1.data() == nullptr && s1.size() == 0
[ 0:07]     93	    &&  s2.data() == nullptr && s2.size() == 0;
[ 0:07]     94	}
[ 0:07]     95	
[ 0:07]     96	
[ 0:07]     97	template <typename T>
[ 0:07]     98	void testRuntimeSpan()
[ 0:07]     99	{
[ 0:07]    100	    std::span<T>    s0{};
[ 0:07]    101	    std::span<T, 0> s1(s0); // dynamic -> static
[ 0:07]    102	    std::span<T>    s2(s1); // static -> dynamic
[ 0:07]    103	    ASSERT_NOEXCEPT(std::span<T>   {s0});
[ 0:07]    104	    ASSERT_NOEXCEPT(std::span<T, 0>{s1});
[ 0:07]    105	    ASSERT_NOEXCEPT(std::span<T>   {s1});
[ 0:07]    106	    ASSERT_NOEXCEPT(std::span<T, 0>{s0});
[ 0:07]    107	
[ 0:07]    108	    assert(s1.data() == nullptr && s1.size() == 0);
[ 0:07]    109	    assert(s2.data() == nullptr && s2.size() == 0);
[ 0:07]    110	}
[ 0:07]    111	
[ 0:07]    112	
[ 0:07]    113	template <typename Dest, typename Src>
[ 0:07]    114	bool testConversionSpan()
[ 0:07]    115	{
[ 0:07]    116	    static_assert(std::is_convertible_v<Src(*)[], Dest(*)[]>, "Bad input types to 'testConversionSpan");
[ 0:07]    117	    std::span<Src>    s0d{};
[ 0:07]    118	    std::span<Src>    s0s{};
[ 0:07]    119	    std::span<Dest, 0> s1(s0d); // dynamic -> static
[ 0:07]    120	    std::span<Dest>    s2(s0s); // static -> dynamic
[ 0:07]    121	        s1.data() == nullptr && s1.size() == 0
[ 0:07]    122	    &&  s2.data() == nullptr && s2.size() == 0;
[ 0:07]    123	}
[ 0:07]    124	
[ 0:07]    125	struct A{};
[ 0:07]    126	
[ 0:07]    127	int main(int, char**)
[ 0:07]    128	{
[ 0:07]    129	    static_assert(testConstexprSpan<int>(),    "");
[ 0:07]    130	    static_assert(testConstexprSpan<long>(),   "");
[ 0:07]    131	    static_assert(testConstexprSpan<double>(), "");
[ 0:07]    132	    static_assert(testConstexprSpan<A>(),      "");
[ 0:07]    133	
[ 0:07]    134	    testRuntimeSpan<int>();
[ 0:07]    135	    testRuntimeSpan<long>();
[ 0:07]    136	    testRuntimeSpan<double>();
[ 0:07]    137	    testRuntimeSpan<std::string>();
[ 0:07]    138	    testRuntimeSpan<A>();
[ 0:07]    139	
[ 0:07]    140	//  TODO: Add some conversion tests here that aren't "X --> const X"
[ 0:07]    141	//  assert((testConversionSpan<unsigned char, char>()));
[ 0:07]    142	
[ 0:07]    143	    checkCV();
[ 0:07]    144	
[ 0:07]    145	  return 0;
[ 0:07]    146	}
[ 0:07] # no errors were expected but one was found anyway