0.000 2016-11-25 11:10:28; Factorio 0.14.20 (build 25315, mac, steam)
   0.000 Operating system: Mac OS X 10.11.1
   0.000 Program arguments: "/Users/Dominic/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app" 
   0.000 Read data path: /Users/Dominic/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents/data
   0.000 Write data path: /Users/Dominic/Library/Application Support/factorio
   0.000 Binaries path: /Users/Dominic/Library/Application Support/Steam/steamapps/common
   0.026 System info: [CPU: Intel(R) Core(TM) i5-4250U CPU @ 1.30GHz, 4 cores, RAM: 4096MB]
   0.067 Display options: [FullScreen: 0] [VSync: 1] [UIScale: 100%] [MultiSampling: OFF] [Screen: 255]
   0.067 Available display adapters: 1
   0.067  [0]: resolution 1440x900px at [0,0]
   0.067 Create display on adapter 0. Size 1280x720 at position [70, 72].
   0.241 Initialised OpenGL:[0] Intel HD Graphics 5000 OpenGL Engine; driver: 2.1 INTEL-10.10.18
   0.818 Total system memory is low (4294967296). Setting graphics preset to MacWithLowRAM.
   0.818 Graphics options: [Graphics quality: low] [Video memory usage: high] [Light scale: 100%] [DXT: false]
   1.033 Loading mod core 0.0.0 (data.lua)
   1.075 Loading mod base 0.14.20 (data.lua)
   1.307 Loading mod auto-research 2.2.1 (data.lua)
   1.397 Loading mod DoubleFurnace 0.1.6 (data.lua)
   1.515 Loading mod Landfill 2.1.11 (data.lua)
   1.605 Loading mod Side Inserters 2.2.2 (data.lua)
   1.707 Loading mod Squeak Through 1.1.5 (data-updates.lua)
   1.840 Loading mod DoubleReach 0.14.1 (data-final-fixes.lua)
   1.944 Checksum for core: 1291735968
   1.944 Checksum for mod base: 786624017
   1.944 Checksum for mod auto-research: 1737942890
   1.944 Checksum for mod DoubleFurnace: 810406676
   1.944 Checksum for mod DoubleReach: 3180674491
   1.944 Checksum for mod Landfill: 3661776105
   1.944 Checksum for mod Side Inserters: 3560953205
   1.944 Checksum for mod Squeak Through: 1290912583
   2.541 Info PlayerData.cpp:55: Local player-data.json available, timestamp 1480100993
   2.541 Info PlayerData.cpp:60: Cloud player-data.json available, timestamp 1479702484
   2.796 Initial atlas bitmap size is 16384
   2.800 Created atlas bitmap 16384x2929
   2.800 Created atlas bitmap 4096x912
  22.136 Sprites loaded
  22.136 Convert atlas 4096x912 to: trilinear-filtering 
  22.274 Loading sounds...
  25.151 Custom inputs active: 4
  25.285 Factorio initialised
  31.385 Loading map /Users/Dominic/Library/Application Support/factorio/saves/_autosave2.zip
  31.387 Error FileUtil.cpp:284: Can't remove /Users/Dominic/Library/Application Support/factorio/temp/currently-playing: No such file or directory
  31.453 Info Scenario.cpp:152: Map version 0.14.20-1
  33.845 Error CrashHandler.cpp:230: Received SIGSEGV
Factorio crashed. Generating symbolized stacktrace, please wait ...
#0  0x00000001006e8f42 in Logger::logStacktrace(StackTraceInfo*) (in factorio) (Logger.cpp:391)
#1  0x00000001006dc709 in CrashHandler::writeStackTrace() (in factorio) (CrashHandler.cpp:106)
#2  0x00000001006dc69e in CrashHandler::SignalHandler(int) (in factorio) (CrashHandler.cpp:235)
#3  0x00007fff8a43352a in 0x00007fff8a43352a
#4  (nil) in 0x0
#5  0x0000000100539b37 in Chunk::load(MapDeserialiser&, Surface&) (in factorio) (Chunk.cpp:348)
#6  0x000000010053a4be in Surface::load(MapDeserialiser&, unsigned int*, unsigned int, ProgressObserver*) (in factorio) (Surface.cpp:593)
#7  0x00000001005385d6 in Map::Map(MapDeserialiser&, ProgressObserver*, bool) (in factorio) (Map.cpp:525)
#8  0x0000000100045bcc in Scenario::loadFactory(boost::filesystem::path const*, boost::filesystem::path const&, MapDeserialiser*, InputType, InputHandler*, MultiplayerManagerBase*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&, bool, ProgressObserver*, bool, InputListener*) (in factorio) (MapVersion.cpp:46)
#9  0x00000001006006b8 in ParallelScenarioLoader::doLoad(ParallelScenarioLoader*, MapDeserialiser*, InputType, InputHandler*, MultiplayerManagerBase*, bool) (in factorio) (ParallelScenarioLoader.cpp:113)
#10 0x00000001008f9979 in void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, void (*)(ParallelScenarioLoader*, MapDeserialiser*, InputType, InputHandler*, MultiplayerManagerBase*, bool), ParallelScenarioLoader*, MapDeserialiser*, InputType, InputHandler*, MultiplayerManagerBase*, bool> >(void*) (in factorio) (thread:358)
#11 0x00007fff9422a9b1 in 0x00007fff9422a9b1
#12 0x00007fff9422a92e in 0x00007fff9422a92e
#13 0x00007fff94228385 in 0x00007fff94228385
  40.255 Error Util.cpp:77: Unexpected error occurred. If you're running the latest version of the game you can help us solve the problem by posting the contents of the log file on the Factorio forums.
Please also include the save file(s), any mods you may be using, and any steps you know of to reproduce the crash.