Httrack crashed after downloading approximately 14GB of pages (html only).
Report follows, ... stands for path to httrack.

Caught signal 6
httrack[0x8049bb8]
[0xb7786500]
[0xb7786420]
/lib/i386-linux-gnu/libc.so.6(gsignal+0x4f)[0xb753de0f]
/lib/i386-linux-gnu/libc.so.6(abort+0x175)[0xb7541455]
.../httrack/lib/libhttrack.so.2(+0x741c)[0xb76c241c]
.../httrack/lib/libhttrack.so.2(+0x30ca5)[0xb76ebca5]
.../httrack/lib/libhttrack.so.2(+0x30f40)[0xb76ebf40]
.../httrack/lib/libhttrack.so.2(+0x25b02)[0xb76e0b02]
.../httrack/lib/libhttrack.so.2(+0x26a78)[0xb76e1a78]
.../httrack/lib/libhttrack.so.2(+0x26f70)[0xb76e1f70]
.../httrack/lib/libhttrack.so.2(+0x17bd9)[0xb76d2bd9]
.../httrack/lib/libhttrack.so.2(+0x1d847)[0xb76d8847]
.../httrack/lib/libhttrack.so.2(+0xf961)[0xb76ca961]
.../httrack/lib/libhttrack.so.2(+0x4f4dc)[0xb770a4dc]
.../httrack/lib/libhttrack.so.2(hts_main2+0x52)[0xb77120a2]
httrack[0x80493fa]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb75294d3]
httrack[0x80494d1]