0.001 2019-03-02 00:25:40; Factorio 0.17.4 (build 43174, mac, steam)
   0.001 Operating system: macOS 10.14.3
   0.001 Program arguments: "/Users/will/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents/MacOS/factorio" 
   0.001 Read data path: /Users/will/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents/data
   0.001 Write data path: /Users/will/Library/Application Support/factorio [13292/239172MB]
   0.001 Binaries path: /Users/will/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents
   0.010 System info: [CPU:       Intel(R) Core(TM) i7-3635QM CPU @ 2.40GHz, 8 cores, RAM: 8192 MB]
   0.010 Display options: [FullScreen: 0] [VSync: 0] [UIScale: automatic (100.0%)] [MultiSampling: OFF] [Screen: 255] [Lang: en]
   1.448 Available displays: 1
   1.448  [0]: Color LCD - {[0,0], 1440x900, SDL_PIXELFORMAT_ARGB8888, 60Hz}
   1.806 Initialised OpenGL:[0] NVIDIA GeForce GT 650M OpenGL Engine; driver: 4.1 NVIDIA-12.0.21 355.11.10.50.10.103
   1.806   [Extensions] s3tc:yes; KHR_debug:NO; ARB_clear_texture:NO, ARB_copy_image:NO
   1.806   [Version] 4.1
   1.974   Dedicated video memory size 1024 MB (detected from GeForce GT 650M)
   1.974 Graphics options: [Graphics quality: normal] [Video memory usage: high] [Light scale: 25%] [DXT: low-quality]
   1.974                   [Max load threads: 32] [Max texture size: 4096] [Tex.Stream.: 1] [Low quality rotation: 1]
   2.458 Loading mod core 0.0.0 (data.lua)
   2.575 Loading mod base 0.17.4 (data.lua)
   2.906 Loading mod base 0.17.4 (data-updates.lua)
   3.052 Checksum for core: 3928040144
   3.052 Checksum of base: 60305742
   3.726 Loading sounds...
   4.072 Info PlayerData.cpp:69: Local player-data.json unavailable
   4.072 Info PlayerData.cpp:72: Cloud player-data.json available, timestamp 1551497035
   4.273 Initial atlas bitmap size is 4096
   4.278 Created atlas bitmap 4096x4096 [none]
   4.286 Created atlas bitmap 4096x4096 [none]
   4.289 Created atlas bitmap 4096x4080 [none]
   4.292 Created atlas bitmap 4096x4096 [none]
   4.294 Created atlas bitmap 4096x4096 [none]
   4.296 Created atlas bitmap 4096x4096 [none]
   4.296 Created atlas bitmap 4096x364 [none]
   4.296 Created atlas bitmap 4096x1960 [decal]
   4.296 Created atlas bitmap 4096x3840 [low-object]
   4.296 Created atlas bitmap 4096x1984 [mipmap, linear-minification, linear-magnification, linear-mip-level]
   4.299 Created atlas bitmap 4096x4096 [terrain, mipmap, linear-minification, linear-mip-level, no-crop]
   4.299 Created atlas bitmap 4096x4000 [terrain, mipmap, linear-minification, linear-mip-level, no-crop]
   4.299 Created atlas bitmap 4096x1600 [smoke, mipmap, linear-minification, linear-magnification]
   4.299 Created atlas bitmap 4096x1392 [not-compressed, mipmap, linear-minification, linear-magnification, linear-mip-level, no-crop, no-scale]
   4.300 Created atlas bitmap 4096x828 [alpha-mask]
   4.304 Created atlas bitmap 4096x4096 [shadow, linear-magnification, alpha-mask]
   4.306 Created atlas bitmap 4096x4088 [shadow, linear-magnification, alpha-mask]
   4.312 Created atlas bitmap 4096x4080 [shadow, linear-magnification, alpha-mask]
   4.312 Created atlas bitmap 4096x544 [shadow, linear-magnification, alpha-mask]
   4.312 Created atlas bitmap 4096x1296 [shadow, mipmap, linear-magnification, alpha-mask]
   4.344 Created virtual atlas pages 4096x4096x2
   4.396 Texture processor created. GPU accelerated compression Supported: yes, Enabled: yes/yes. Test passed. YCoCgDXT PSNR: 35.83, BC3 PSNR: 33.82
   7.105 Parallel Sprite Loader initialized (threads: 5)
  36.713 Sprites loaded
  39.614 Generated mipmaps for atlas of size 4096x3840
  43.313 Generated mipmaps for atlas of size 4096x1984
  46.164 Generated mipmaps for atlas of size 4096x4096
  48.458 Generated mipmaps for atlas of size 4096x4000
  52.362 Generated mipmaps for atlas of size 4096x1600
  52.394 Generated mipmaps for atlas of size 4096x1392
  52.419 Generated mipmaps for atlas of size 4096x1296
  52.451 Generated mipmaps for virtual atlas of size 4096x8192
  52.462 Custom inputs active: 0
  52.554 Factorio initialised
  61.960 Loading map /Users/will/Library/Application Support/factorio/saves/_autosave3.zip: 3513338 bytes.
  62.005 Loading Level.dat: 11974538 bytes.
  62.010 Info Scenario.cpp:147: Map version 0.17.4-1
  62.298 Loading script.dat: 328 bytes.
  62.301 Checksum for script /Users/will/Library/Application Support/factorio/temp/currently-playing/control.lua: 2366710471
Factorio crashed. Generating symbolized stacktrace, please wait ...
 145.782 Warning Logger.cpp:487: Couldn't symbolize stacktrace: (resolving symbol failed: fread). Make sure you have atos installed to produce better stacktraces

Stack trace logging done
 146.004 Warning Logger.cpp:487: Couldn't symbolize stacktrace: (resolving symbol failed: fread). Make sure you have atos installed to produce better stacktraces

 146.004 Error EntityWithOwner.cpp:247: Unit number cannot be zero when comparing entities.
Logger::writeStacktrace skipped.
 146.004 Error CrashHandler.cpp:174: Map tick at moment of crash: 2596975
 146.004 Error Util.cpp:97: 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.