Record Case Detail

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100 int
0 append L619asTm -577
/in/dlist.c:25:15: runtime error: member access within null pointer of type 'node_t' (aka 'struct node')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/dlist.c:25:15 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==91==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x000000515898 bp 0x7ffdf6229430 sp 0x7ffdf62293e0 T0)
==91==The signal is caused by a READ memory access.
==91==Hint: address points to the zero page.
    #0 0x515897  (/out/package/main+0x515897)
    #1 0x515367  (/out/package/main+0x515367)
    #2 0x7fb89a3fcb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41cb09  (/out/package/main+0x41cb09)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/main+0x515897) 
==91==ABORTING

Your answer may be identical to the JOJ answer in the first several lines.

However, the main problem you meet now is Runtime Error. And the exit code of your program is 1, which should be 0.

Please double check your code to solve this problem and try again.

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false
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false
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L619asTm=-577
fwnAoN4Ig=703
YJQFrK0fwNHXZRq=-179
FLAiuYpE=1021
daYCu5c7DW2b=-172
MVudPk0Af8G6=180
pYaxK=683
uSMGF=-540
TJeQDRb20=534
vMxC9w4hy=575
Uw1jOTPqNRd=-779
Qg9m7PU=649
NVTK7tHMUker0R1=-118
FGloLg=1008
s1LAxDE=-519
BfZ6d7O=659
H59j40=-988
IQA9fnzk=-816
01gT4WDyc2X=-495
D1MzHv=294
9QlmKBbknqzepW=-163
35RruwcQCVMxLsN=393
FY5fnxd=3
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L619asTm=-577
fwnAoN4Ig=703
YJQFrK0fwNHXZRq=-179
FLAiuYpE=1021
daYCu5c7DW2b=-172
MVudPk0Af8G6=180
pYaxK=683
uSMGF=-540
TJeQDRb20=534
vMxC9w4hy=575
Uw1jOTPqNRd=-779
Qg9m7PU=649
NVTK7tHMUker0R1=-118
FGloLg=1008
s1LAxDE=-519
BfZ6d7O=659
H59j40=-988
IQA9fnzk=-816
01gT4WDyc2X=-495
D1MzHv=294
9QlmKBbknqzepW=-163
35RruwcQCVMxLsN=393
FY5fnxd=3
5ZfKXW3AGFImB=3
D8qdWc4ZGYA=850
F6CW0KkA5Rc=-962
FLAiuYpE=1021
FGloLg=1008
D8qdWc4ZGYA=850
fwnAoN4Ig=703
pYaxK=683
BfZ6d7O=659
Qg9m7PU=649
vMxC9w4hy=575
TJeQDRb20=534
35RruwcQCVMxLsN=393
D1MzHv=294
MVudPk0Af8G6=180
FY5fnxd=3
5ZfKXW3AGFImB=3
NVTK7tHMUker0R1

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