Description:
------------
(gdb) bt
#0  0x000000000054a743 in _zend_mm_alloc_int ()
#1  0x00000000005667cb in zend_str_tolower_dup ()
#2  0x0000000000551fa7 in zend_add_func_name_literal ()
#3  0x000000000055380d in zend_do_begin_method_call ()
#4  0x0000000000535414 in zendparse ()
#5  0x00000000005398d0 in compile_file ()
#6  0x0000000809427114 in phar_compile_file () from /usr/local/lib/php/20121212/phar.so
#7  0x00000008028093e7 in compile_and_cache_file () from /usr/local/lib/php/20121212/opcache.so
#8  0x000000080280a86c in persistent_compile_file () from /usr/local/lib/php/20121212/opcache.so
#9  0x00000000005c6947 in ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER ()
#10 0x00000000005a0668 in execute_ex ()
#11 0x000000000056f0ed in zend_execute_scripts ()
#12 0x0000000000510f65 in php_execute_script ()
#13 0x0000000000618484 in do_cli ()
#14 0x0000000000618c35 in main ()
#15 0x0000000000418ece in _start ()
#16 0x000000080097d000 in ?? ()
#17 0x0000000000000000 in ?? ()
#18 0x0000000000000009 in ?? ()
#19 0x00007fffffffdd50 in ?? ()
#20 0x00007fffffffdd63 in ?? ()
#21 0x00007fffffffdd66 in ?? ()
#22 0x00007fffffffdd69 in ?? ()
#23 0x00007fffffffdd93 in ?? ()
#24 0x00007fffffffddb7 in ?? ()
#25 0x00007fffffffddca in ?? ()
#26 0x00007fffffffddce in ?? ()
#27 0x00007fffffffddd3 in ?? ()
#28 0x0000000000000000 in ?? ()
#29 0x00007fffffffdddf in ?? ()
#30 0x00007fffffffddea in ?? ()
#31 0x00007fffffffde04 in ?? ()
#32 0x00007fffffffde26 in ?? ()
#33 0x00007fffffffde39 in ?? ()
#34 0x00007fffffffde45 in ?? ()
#35 0x00007fffffffde5c in ?? ()
#36 0x00007fffffffde67 in ?? ()
#37 0x00007fffffffde7d in ?? ()
#38 0x00007fffffffdedb in ?? ()
#39 0x00007fffffffdee7 in ?? ()
#40 0x00007fffffffdef8 in ?? ()
#41 0x00007fffffffdf04 in ?? ()
#42 0x00007fffffffdf0f in ?? ()
#43 0x00007fffffffdf17 in ?? ()
#44 0x00007fffffffdf26 in ?? ()
#45 0x00007fffffffdf58 in ?? ()
#46 0x0000000000000000 in ?? ()
#47 0x0000000000000003 in ?? ()
#48 0x0000000000400040 in ?? ()
#49 0x0000000000000004 in ?? ()
#50 0x0000000000000038 in ?? ()
#51 0x0000000000000005 in ?? ()
#52 0x0000000000000008 in ?? ()
#53 0x0000000000000006 in ?? ()

Expected result:
----------------
No core dump

Actual result:
--------------
Core dump