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Thread 1 (Thread 0xb6f35700 (LWP 1964)):
#0  0xb7317252 in fclose () from /lib/i386-linux-gnu/libc.so.6
No symbol table info available.
#1  0x0804d71f in ?? ()
No symbol table info available.
#2  0x0804d9c1 in ?? ()
No symbol table info available.
#3  0x080530df in ?? ()
No symbol table info available.
#4  0x080531de in ?? ()
No symbol table info available.
#5  0x080e3622 in ?? ()
No symbol table info available.
#6  0xb72cd46a in __libc_start_main () from /lib/i386-linux-gnu/libc.so.6
No symbol table info available.
#7  0x0804c2e1 in ?? ()
No symbol table info available.