james@Zeus:~/Documents/scratch$ gdb /home/james/lilypond-git/build/out/bin/lilypond core
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Reading symbols from /home/james/lilypond-git/build/out/bin/lilypond...done.
[New LWP 16392]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `lilypond --pdf blah.ly'.
Program terminated with signal SIGABRT, Aborted.
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
51	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  0x00007fad821e7e97 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007fad821e9801 in __GI_abort () at abort.c:79
#2  0x00007fad821d939a in __assert_fail_base (fmt=0x7fad823607d8 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x55b1c6f8f40f "my_index == 0", file=file@entry=0x55b1c6f8f1b8 "/home/james/lilypond-git/lily/page-breaking.cc", line=line@entry=1053, function=function@entry=0x55b1c6f8f900 <Page_breaking::line_divisions_rec(unsigned long, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> >*)::__PRETTY_FUNCTION__> "void Page_breaking::line_divisions_rec(vsize, const Line_division&, const Line_division&, Page_breaking::Line_division*)") at assert.c:92
#3  0x00007fad821d9412 in __GI___assert_fail (assertion=0x55b1c6f8f40f "my_index == 0", file=0x55b1c6f8f1b8 "/home/james/lilypond-git/lily/page-breaking.cc", line=1053, function=0x55b1c6f8f900 <Page_breaking::line_divisions_rec(unsigned long, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> >*)::__PRETTY_FUNCTION__> "void Page_breaking::line_divisions_rec(vsize, const Line_division&, const Line_division&, Page_breaking::Line_division*)") at assert.c:101
#4  0x000055b1c6dcac4c in Page_breaking::line_divisions_rec(unsigned long, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> >*) (this=0x7ffd3515fec0, system_count=5, min_sys=std::vector of length 4, capacity 4 = {...}, max_sys=std::vector of length 4, capacity 4 = {...}, cur_division=0x7ffd3515fa50) at /home/james/lilypond-git/lily/page-breaking.cc:1053
#5  0x000055b1c6dcacd5 in Page_breaking::line_divisions_rec(unsigned long, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> > const&, std::vector<unsigned long, std::allocator<unsigned long> >*) (this=0x7ffd3515fec0, system_count=5, min_sys=std::vector of length 4, capacity 4 = {...}, max_sys=std::vector of length 4, capacity 4 = {...}, cur_division=0x7ffd3515fa50) at /home/james/lilypond-git/lily/page-breaking.cc:1063
#6  0x000055b1c6dc9fd5 in Page_breaking::set_current_breakpoints(unsigned long, unsigned long, unsigned long, std::vector<unsigned long, std::allocator<unsigned long> >, std::vector<unsigned long, std::allocator<unsigned long> >) (this=0x7ffd3515fec0, start=0, end=1, system_count=5, lower_bound=std::vector of length 4, capacity 4 = {...}, upper_bound=std::vector of length 4, capacity 4 = {...})
    at /home/james/lilypond-git/lily/page-breaking.cc:908
#7  0x000055b1c6d3da02 in Optimal_page_breaking::solve() (this=0x7ffd3515fec0)
    at /home/james/lilypond-git/lily/optimal-page-breaking.cc:125
#8  0x000055b1c6baf90a in ly_optimal_breaking(scm_unused_struct*) (pb=0x7fad7c4bf5d0)
    at /home/james/lilypond-git/lily/page-breaking-scheme.cc:45
#9  0x00007fad83a9c762 in scm_dapply (proc=0x7fad7f9cce30, arg1=0x7fad7c4bf5d0, args=0x404) at eval.c:4895
#10 0x000055b1c6d27da7 in Paper_book::pages() (this=0x55b1c919f0b0) at /home/james/lilypond-git/lily/paper-book.cc:653
#11 0x000055b1c6d246ee in Paper_book::output_aux(scm_unused_struct*, bool, long*, long*) (this=0x55b1c919f0b0, output_channel=0x7fad7ed740a0, is_last=true, first_page_number=0x7ffd35160240, first_performance_number=0x7ffd35160248)
    at /home/james/lilypond-git/lily/paper-book.cc:148
#12 0x000055b1c6d2497b in Paper_book::output(scm_unused_struct*) (this=0x55b1c919f0b0, output_channel=0x7fad7ed740a0)
    at /home/james/lilypond-git/lily/paper-book.cc:171
---Type <return> to continue, or q <return> to quit---
#13 0x000055b1c6d9c95d in ly_book_process(scm_unused_struct*, scm_unused_struct*, scm_unused_struct*, scm_unused_struct*) (book_smob=0x7fad7c4c1220, default_paper=0x7fad7c79f1d0, default_layout=0x7fad7c92b3e0, output=0x7fad7ed740a0)
    at /home/james/lilypond-git/lily/book-scheme.cc:78
#14 0x00007fad83a9c8df in scm_dapply (proc=0x7fad7f12a4f0, arg1=0x7fad7facb3b0, args=0x7fad7c4bf5f0, args@entry=0x404) at eval.c:4930
#15 0x00007fad83a9f59b in deval (x=<optimised out>, env=<optimised out>) at eval.c:4378
#16 0x000055b1c6b53372 in internal_ly_eval_scm(Parse_start*) (ps=0x7ffd35160630) at /home/james/lilypond-git/lily/parse-scm.cc:103
#17 0x000055b1c6b533a6 in catch_protected_eval_body(void*) (p=0x7ffd35160630) at /home/james/lilypond-git/lily/parse-scm.cc:115
#18 0x00007fad83aa7162 in scm_c_with_fluid (fluid=0x7fad7f0e9be0, value=0x7fad7c4c1ff0, cproc=0x55b1c6b5338e <catch_protected_eval_body(void*)>, cdata=0x7ffd35160630) at fluids.c:463
#19 0x000055b1c6b5361e in ly_eval_scm(scm_unused_struct*, Input, bool, Lily_parser*) (form=0x7fad7c4c2bb0, i=..., safe=false, parser=0x55b1c919b290) at /home/james/lilypond-git/lily/parse-scm.cc:181
#20 0x000055b1c6f10dc6 in Lily_lexer::eval_scm(scm_unused_struct*, Input, char) (this=
    0x55b1c913d7f0, readerdata=0x7fad7c4c2bb0, hi=..., extra_token=35 '#') at /home/james/lilypond-git/lily/lexer.ll:1096
#21 0x000055b1c6f2dcc8 in Lily_lexer::eval_scm_token(scm_unused_struct*, Input) (this=0x55b1c913d7f0, sval=0x7fad7c4c2bb0, w=...)
    at /home/james/lilypond-git/lily/include/lily-lexer.hh:63
#22 0x000055b1c6f13884 in yyparse(Lily_parser*, scm_unused_struct**) (parser=0x55b1c919b290, retval=0x7ffd351629b0)
    at /home/james/lilypond-git/lily/parser.yy:452
#23 0x000055b1c6f2a8b2 in Lily_parser::do_yyparse_trampoline(void*) (parser=0x55b1c919b290) at /home/james/lilypond-git/lily/parser.yy:4214
#24 0x00007fad83aa7162 in scm_c_with_fluid (fluid=0x7fad7f0e9c60, value=0x7fad7d4876e0, cproc=0x55b1c6f2a87c <Lily_parser::do_yyparse_trampoline(void*)>, cdata=0x55b1c919b290) at fluids.c:463
#25 0x000055b1c6f2a874 in Lily_parser::do_yyparse() (this=0x55b1c919b290) at /home/james/lilypond-git/lily/parser.yy:4207
#26 0x000055b1c6eca30c in Lily_parser::parse_file(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (this=0x55b1c919b290, init="init.ly", name="blah.ly", out_name="blah")
    at /home/james/lilypond-git/lily/lily-parser.cc:123
#27 0x000055b1c6d76d71 in ly_parse_file(scm_unused_struct*) (name=0x7fad7ee37020)
    at /home/james/lilypond-git/lily/lily-parser-scheme.cc:122
#28 0x00007fad83a9f8a6 in deval (x=<optimised out>, x@entry=0x7fad7d6245c0, env=<optimised out>, env@entry=0x7fad7d487770) at eval.c:4232
#29 0x00007fad83a9cf45 in scm_dapply (proc=0x7fad7d487880, arg1=<optimised out>, args=0x7fad7d487770) at eval.c:5012
#30 0x00007fad83af5b03 in scm_c_catch (tag=<optimised out>, body=body@entry=0x7fad83af5510 <scm_body_thunk>, body_data=body_data@entry=0x7ffd351631e0, handler=0x7fad83af5520 <scm_handle_by_proc>, handler_data=handler_data@entry=0x7ffd351631d8, pre_unwind_handler=0x0, pre_unwind_handler_data=0x7ffd351631d0) at throw.c:204
#31 0x00007fad83af5d2d in scm_catch_with_pre_unwind_handler (key=<optimised out>, thunk=<optimised out>, handler=<optimised out>, pre_unwind_handler=<optimised out>) at throw.c:588
#32 0x00007fad83a9c8df in scm_dapply (proc=0x7fad7f12a4f0, arg1=0x7fad7fb1d940, args=0x7fad7d4877c0, args@entry=0x404) at eval.c:4930
#33 0x00007fad83a9f59b in deval (x=<optimised out>, env=<optimised out>, env@entry=0x7fad7d487a20) at eval.c:4378
---Type <return> to continue, or q <return> to quit---
#34 0x00007fad83a9f98c in deval (x=0x7fad7d627770, x@entry=0x7fad7d627d90, env=0x7fad7d487a20, env@entry=0x7fad7d4922c0) at eval.c:3397
#35 0x00007fad83a9cf45 in scm_dapply (proc=0x7fad7d492c50, arg1=<optimised out>, args=0x7fad7d4922c0) at eval.c:5012
#36 0x00007fad7dc4441a in scm_srfi1_for_each (proc=0x7fad7d492a20, arg1=0x7fad7d488ac0, args=0x404) at srfi-1.c:1516
#37 0x00007fad83a9f77e in deval (x=<optimised out>, env=<optimised out>, env@entry=0x7fad7d488410) at eval.c:4367
#38 0x00007fad83a9f98c in deval (x=0x7fad7d626c60, env=0x7fad7d488410, env@entry=0x7fad7d488a80) at eval.c:3397
#39 0x00007fad83aa0ed4 in deval (x=0x7fad7d488640, x@entry=0x7fad7d62ced0, env=env@entry=0x7fad7d488a80) at eval.c:3648
#40 0x00007fad83a9cf45 in scm_dapply (proc=0x7fad7d62c900, arg1=<optimised out>, args=0x7fad7d488a80) at eval.c:5012
#41 0x000055b1c6ba1026 in Scm_variable::operator()(scm_unused_struct*) (this=0x55b1c7312d48 <Lily::lilypond_main>, arg1=0x7fad7d488ac0)
    at /home/james/lilypond-git/lily/include/lily-modules.hh:73
#42 0x000055b1c6d46c2d in main_with_guile(void*, int, char**) () at /home/james/lilypond-git/lily/main.cc:519
#43 0x00007fad83ab7d6f in invoke_main_func (body_data=0x7ffd35163d30) at init.c:367
#44 0x00007fad83a8f33a in c_body (d=d@entry=0x7ffd35163cd0) at continuations.c:349
#45 0x00007fad83af5b03 in scm_c_catch (tag=tag@entry=0x104, body=body@entry=0x7fad83a8f330 <c_body>, body_data=body_data@entry=0x7ffd35163cd0, handler=handler@entry=0x7fad83a8f350 <c_handler>, handler_data=handler_data@entry=0x7ffd35163cd0, pre_unwind_handler=pre_unwind_handler@entry=0x7fad83af61f0 <scm_handle_by_message_noexit>, pre_unwind_handler_data=0x0) at throw.c:204
#46 0x00007fad83a8f914 in scm_i_with_continuation_barrier (body=body@entry=0x7fad83a8f330 <c_body>, body_data=body_data@entry=0x7ffd35163cd0, handler=handler@entry=0x7fad83a8f350 <c_handler>, handler_data=handler_data@entry=0x7ffd35163cd0, pre_unwind_handler=0x7fad83af61f0 <scm_handle_by_message_noexit>, pre_unwind_handler_data=pre_unwind_handler_data@entry=0x0) at continuations.c:325
#47 0x00007fad83a8f9f0 in scm_c_with_continuation_barrier (func=func@entry=0x7fad83ab7d50 <invoke_main_func>, data=data@entry=0x7ffd35163d30) at continuations.c:367
#48 0x00007fad83af3f16 in scm_i_with_guile_and_parent (func=0x7fad83ab7d50 <invoke_main_func>, data=0x7ffd35163d30, parent=<optimised out>)
    at threads.c:734
#49 0x00007fad83ab7ee5 in scm_boot_guile (argc=<optimised out>, argv=<optimised out>, main_func=<optimised out>, closure=<optimised out>)
    at init.c:350
#50 0x000055b1c6d485a1 in main(int, char**, char**) (argc=3, argv=0x7ffd35163ec8, envp=0x7ffd35163ee8)
    at /home/james/lilypond-git/lily/main.cc:831