Start

*** Error in `./prog.exe': free(): invalid pointer: 0x00007ffc553d3e1c ***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7fcc138d07e5]
/lib/x86_64-linux-gnu/libc.so.6(+0x8037a)[0x7fcc138d937a]
/lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7fcc138dd53c]
./prog.exe[0x400d55]
./prog.exe[0x400b42]
./prog.exe[0x4016ab]
./prog.exe[0x401471]
./prog.exe[0x401100]
./prog.exe[0x400cbd]
./prog.exe[0x400a95]
./prog.exe[0x40092f]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fcc13879830]
./prog.exe[0x4007f9]
======= Memory map: ========
00400000-00403000 r-xp 00000000 fd:03 9702479                            /home/jail/prog.exe
00603000-00604000 rw-p 00003000 fd:03 9702479                            /home/jail/prog.exe
0161e000-01650000 rw-p 00000000 00:00 0                                  [heap]
7fcc0c000000-7fcc0c021000 rw-p 00000000 00:00 0 
7fcc0c021000-7fcc10000000 ---p 00000000 00:00 0 
7fcc13859000-7fcc13a19000 r-xp 00000000 fd:03 147125                     /lib/x86_64-linux-gnu/libc-2.23.so
7fcc13a19000-7fcc13c19000 ---p 001c0000 fd:03 147125                     /lib/x86_64-linux-gnu/libc-2.23.so
7fcc13c19000-7fcc13c1d000 r--p 001c0000 fd:03 147125                     /lib/x86_64-linux-gnu/libc-2.23.so
7fcc13c1d000-7fcc13c1f000 rw-p 001c4000 fd:03 147125                     /lib/x86_64-linux-gnu/libc-2.23.so
7fcc13c1f000-7fcc13c23000 rw-p 00000000 00:00 0 
7fcc13c23000-7fcc13c3a000 r-xp 00000000 fd:03 494118                     /opt/wandbox/gcc-10.1.0/lib64/libgcc_s.so.1
7fcc13c3a000-7fcc13e39000 ---p 00017000 fd:03 494118                     /opt/wandbox/gcc-10.1.0/lib64/libgcc_s.so.1
7fcc13e39000-7fcc13e3a000 rw-p 00016000 fd:03 494118                     /opt/wandbox/gcc-10.1.0/lib64/libgcc_s.so.1
7fcc13e3a000-7fcc13f42000 r-xp 00000000 fd:03 147128                     /lib/x86_64-linux-gnu/libm-2.23.so
7fcc13f42000-7fcc14141000 ---p 00108000 fd:03 147128                     /lib/x86_64-linux-gnu/libm-2.23.so
7fcc14141000-7fcc14142000 r--p 00107000 fd:03 147128                     /lib/x86_64-linux-gnu/libm-2.23.so
7fcc14142000-7fcc14143000 rw-p 00108000 fd:03 147128                     /lib/x86_64-linux-gnu/libm-2.23.so
7fcc14143000-7fcc142ff000 r-xp 00000000 fd:03 494142                     /opt/wandbox/gcc-10.1.0/lib64/libstdc++.so.6.0.28
7fcc142ff000-7fcc144ff000 ---p 001bc000 fd:03 494142                     /opt/wandbox/gcc-10.1.0/lib64/libstdc++.so.6.0.28
7fcc144ff000-7fcc1450a000 r--p 001bc000 fd:03 494142                     /opt/wandbox/gcc-10.1.0/lib64/libstdc++.so.6.0.28
7fcc1450a000-7fcc1450d000 rw-p 001c7000 fd:03 494142                     /opt/wandbox/gcc-10.1.0/lib64/libstdc++.so.6.0.28
7fcc1450d000-7fcc14510000 rw-p 00000000 00:00 0 
7fcc14510000-7fcc14528000 r-xp 00000000 fd:03 147112                     /lib/x86_64-linux-gnu/libpthread-2.23.so
7fcc14528000-7fcc14727000 ---p 00018000 fd:03 147112                     /lib/x86_64-linux-gnu/libpthread-2.23.so
7fcc14727000-7fcc14728000 r--p 00017000 fd:03 147112                     /lib/x86_64-linux-gnu/libpthread-2.23.so
7fcc14728000-7fcc14729000 rw-p 00018000 fd:03 147112                     /lib/x86_64-linux-gnu/libpthread-2.23.so
7fcc14729000-7fcc1472d000 rw-p 00000000 00:00 0 
7fcc1472d000-7fcc14753000 r-xp 00000000 fd:03 147111                     /lib/x86_64-linux-gnu/ld-2.23.so
7fcc14943000-7fcc14949000 rw-p 00000000 00:00 0 
7fcc14951000-7fcc14952000 rw-p 00000000 00:00 0 
7fcc14952000-7fcc14953000 r--p 00025000 fd:03 147111                     /lib/x86_64-linux-gnu/ld-2.23.so
7fcc14953000-7fcc14954000 rw-p 00026000 fd:03 147111                     /lib/x86_64-linux-gnu/ld-2.23.so
7fcc14954000-7fcc14955000 rw-p 00000000 00:00 0 
7ffc553b4000-7ffc553d5000 rw-p 00000000 00:00 0                          [stack]
7ffc553e0000-7ffc553e2000 r--p 00000000 00:00 0                          [vvar]
7ffc553e2000-7ffc553e4000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]

Aborted

Finish