Process 42406 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
    frame #0: 0x0000000184c9e0dc libsystem_kernel.dylib`__pthread_kill + 8
libsystem_kernel.dylib`:
->  0x184c9e0dc <+8>:  b.lo   0x184c9e0fc               ; <+40>
    0x184c9e0e0 <+12>: pacibsp
    0x184c9e0e4 <+16>: stp    x29, x30, [sp, #-0x10]!
    0x184c9e0e8 <+20>: mov    x29, sp
Target 0: (exult) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
  * frame #0: 0x0000000184c9e0dc libsystem_kernel.dylib`__pthread_kill + 8
    frame #1: 0x0000000184cd5cc0 libsystem_pthread.dylib`pthread_kill + 288
    frame #2: 0x0000000184be1a40 libsystem_c.dylib`abort + 180
    frame #3: 0x0000000184c8d070 libc++abi.dylib`abort_message + 132
    frame #4: 0x0000000184c7d004 libc++abi.dylib`demangling_terminate_handler() + 52
    frame #5: 0x0000000184c8c434 libc++abi.dylib`std::__terminate(void (*)()) + 16
    frame #6: 0x0000000184c8c390 libc++abi.dylib`std::terminate() + 36
    frame #7: 0x0000000184c0b714 libc++.1.dylib`std::__1::thread::~thread() + 32
    frame #8: 0x00000001001885e4 exult`std::__1::default_delete<std::__1::thread>::operator()[abi:v160006](this=0x0000000140037c00, __ptr=0x00006000027b0590) const at unique_ptr.h:65:5
    frame #9: 0x0000000100180494 exult`std::__1::unique_ptr<std::__1::thread, std::__1::default_delete<std::__1::thread>>::reset[abi:v160006](this=0x0000000140037c00, __p=0x0000000000000000) at unique_ptr.h:297:7
    frame #10: 0x0000000100180ce4 exult`std::__1::unique_ptr<std::__1::thread, std::__1::default_delete<std::__1::thread>>::operator=[abi:v160006](this=0x0000000140037c00, (null)=0x0000000000000000) at unique_ptr.h:266:5
    frame #11: 0x0000000100180acc exult`LowLevelMidiDriver::initMidiDriver(this=0x0000000140037a00, samp_rate=44100, is_stereo=true) at LowLevelMidiDriver.cpp:224:10
    frame #12: 0x000000010018dacc exult`MidiDriver::createInstance(desired_driver="CoreMidi", sample_rate=44100, stereo=true) at MidiDriver.cpp:119:22
    frame #13: 0x0000000100164fec exult`MyMidiPlayer::init_device(this=0x0000600000193a20, timbre_load=false) at Midi.cc:685:33
    frame #14: 0x00000001001675c0 exult`MyMidiPlayer::MyMidiPlayer(this=0x0000600000193a20) at Midi.cc:718:2
    frame #15: 0x000000010016761c exult`MyMidiPlayer::MyMidiPlayer(this=0x0000600000193a20) at Midi.cc:717:30
    frame #16: 0x000000010016eea8 exult`Pentagram::AudioMixer::openMidiOutput(this=0x00006000001958c0) at AudioMixer.cc:391:25
    frame #17: 0x000000010015b368 exult`Audio::Init(this=0x00006000006baf80, _samplerate=44100, _channels=2) at Audio.cc:249:9
    frame #18: 0x000000010015b248 exult`Audio::Init() at Audio.cc:198:9
    frame #19: 0x000000010008ccb0 exult`Init() at exult.cc:874:3
    frame #20: 0x000000010008796c exult`exult_main(runpath="/Users/Dominus/code/snapshots/exult/exult") at exult.cc:645:2
    frame #21: 0x0000000100086160 exult`main(argc=1, argv=0x000000016fdff428) at exult.cc:458:12
    frame #22: 0x00000001849550e0 dyld`start + 2360