Record Case Detail

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50 int
0 append eyglRwx04pvZtd -57763
1 empty
2 append H51z9xkKmcYI 83
/in/dlist.c:261:14: runtime error: member access within null pointer of type 'node_t' (aka 'struct linked_node')
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /in/dlist.c:261:14 in 
AddressSanitizer:DEADLYSIGNAL
=================================================================
==267==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010 (pc 0x0000005169d2 bp 0x7fff0e9042f0 sp 0x7fff0e9042a0 T0)
==267==The signal is caused by a WRITE memory access.
==267==Hint: address points to the zero page.
    #0 0x5169d1  (/out/package/main+0x5169d1)
    #1 0x515327  (/out/package/main+0x515327)
    #2 0x7f4b711bcb96  (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #3 0x41cac9  (/out/package/main+0x41cac9)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/out/package/main+0x5169d1) 
==267==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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1
false
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false
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eyglRwx04pvZtd=-57763
H51z9xkKmcYI=83
tRUIuC503Vf=-62540
YusIFKWaNCb83EP=-28859
EvCUloHJ6Sazp=40141
DMcp96t=-55792
ofErL=35121
o4ydT=-43869
EvCUloHJ6Sazp=40141
ofErL=35121
H51z9xkKmcYI=83
YusIFKWaNCb83EP=-28859
o4ydT=-43869
DMcp96t=-55792
eyglRwx04pvZtd=-57763
tRUIuC503Vf=-62540
11
12
13
eyglRwx04pvZtd=-57763
H51z9xkKmcYI=83
tRUIuC503Vf=-62540
YusIFKWaNCb83EP=-28859
EvCUloHJ6Sazp=40141
DMcp96t=-55792
ofErL=35121
o4ydT=-43869
qwfCG=5719
h5FKvPM73gw=-10244
tRUIuC503Vf=-62540
eyglRwx04pvZtd=-57763
DMcp96t=-55792
o4ydT=-43869
YusIFKWaNCb83EP=-28859
h5FKvPM73gw=-10244
H51z9xkKmcYI=83
qwfCG=5719
ofErL=35121
EvCUloHJ6Sazp=40141
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15
16
17
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eyglRwx04pvZtd=-57763
H51z9xkKmcYI=83
tRUIuC503Vf=-62540
YusIFKWaNCb83EP=-28859
EvCUloHJ6Sazp=40141
DMcp96t=-55792
ofErL=35121
o4ydT=-43869
qwfCG=5719
h5FKvPM73gw=-10244
voZe8=32086
wDYF6KqiudgLkC=-38017
CWK2bHi=-43260
nk6AfKmbeIUEw0N=63865
9HsQlk=23828
cwIDm20YVCqAb=16282
nk6AfKmbeIUEw0N=63865
EvCUloHJ6Sazp=40141
ofErL=35121
voZe8=32086

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