Record Case Detail

This function is in beta test. Please help improve it in the issues here.

/in/lab4.c:74:60: runtime error: index -1 out of bounds for type 'char [120]'
=================================================================
==49458==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fff79aae7df at pc 0x55a13709bf20 bp 0x7fff79aad2a0 sp 0x7fff79aad290
READ of size 1 at 0x7fff79aae7df thread T0
    #0 0x55a13709bf1f in main (/out/package/lab4+0xdf1f)
    #1 0x7fc9e30a1b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
    #2 0x55a13709e379 in _start (/out/package/lab4+0x10379)

Address 0x7fff79aae7df is located in stack of thread T0 at offset 5183 in frame
    #0 0x55a137096bbf in main (/out/package/lab4+0x8bbf)

  This frame has 8 object(s):
    [32, 512) 'helper'
    [544, 1024) 'helper1'
    [1056, 2016) 'stack0'
    [2048, 3008) 'RVP'
    [3040, 4000) 'stack'
    [4032, 4992) 'stack1'
    [5024, 5144) 'commands'
    [5184, 5304) 'remain' <== Memory access at offset 5183 underflows this variable
HINT: this may be a false positive if your program uses some custo

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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