0.000 2019-03-02 11:12:24; Factorio 0.17.4 (build 43174, mac, steam)
   0.000 Operating system: macOS 10.14.3
   0.000 Program arguments: "/Users/gregdosh/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents/MacOS/factorio" 
   0.000 Read data path: /Users/gregdosh/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents/data
   0.000 Write data path: /Users/gregdosh/Library/Application Support/factorio [202210/476902MB]
   0.000 Binaries path: /Users/gregdosh/Library/Application Support/Steam/steamapps/common/Factorio/factorio.app/Contents
   0.011 System info: [CPU: Intel(R) Core(TM) i7-4650U CPU @ 1.70GHz, 4 cores, RAM: 8192 MB]
   0.011 Display options: [FullScreen: 1] [VSync: 0] [UIScale: custom (100.0%)] [MultiSampling: OFF] [Screen: 255] [Lang: en]
   0.114 Available displays: 1
   0.114  [0]: Color LCD - {[0,0], 1440x900, SDL_PIXELFORMAT_ARGB8888, 60Hz}
   0.900 Initialised OpenGL:[0] Intel HD Graphics 5000 OpenGL Engine; driver: 4.1 INTEL-12.4.7
   0.900   [Extensions] s3tc:yes; KHR_debug:NO; ARB_clear_texture:NO, ARB_copy_image:NO
   0.900   [Version] 4.1
   1.054 Graphics settings preset: high
   1.054   Dedicated video memory size 1536 MB (detected from HD Graphics 5000)
   1.054 Graphics options: [Graphics quality: normal] [Video memory usage: high] [Light scale: 25%] [DXT: low-quality]
   1.054                   [Max load threads: 32] [Max texture size: 0] [Tex.Stream.: 1] [Low quality rotation: 1]
   1.266 Loading mod core 0.0.0 (data.lua)
   1.396 Loading mod base 0.17.4 (data.lua)
   1.721 Loading mod base 0.17.4 (data-updates.lua)
   1.849 Checksum for core: 3928040144
   1.849 Checksum of base: 60305742
   2.508 Loading sounds...
   2.884 Info PlayerData.cpp:69: Local player-data.json unavailable
   2.884 Info PlayerData.cpp:72: Cloud player-data.json available, timestamp 1551503770
   3.026 Initial atlas bitmap size is 16384
   3.027 Created atlas bitmap 16384x6216 [none]
   3.028 Created atlas bitmap 16384x688 [decal]
   3.028 Created atlas bitmap 16384x1104 [low-object]
   3.028 Created atlas bitmap 16384x656 [mipmap, linear-minification, linear-magnification, linear-mip-level]
   3.028 Created atlas bitmap 16384x2096 [terrain, mipmap, linear-minification, linear-mip-level, no-crop]
   3.028 Created atlas bitmap 16384x480 [smoke, mipmap, linear-minification, linear-magnification]
   3.028 Created atlas bitmap 16384x456 [not-compressed, mipmap, linear-minification, linear-magnification, linear-mip-level, no-crop, no-scale]
   3.029 Created atlas bitmap 16384x216 [alpha-mask]
   3.030 Created atlas bitmap 16384x3180 [shadow, linear-magnification, alpha-mask]
   3.030 Created atlas bitmap 16384x384 [shadow, mipmap, linear-magnification, alpha-mask]
   3.092 Created virtual atlas pages 4096x4096x2
   3.345 Texture processor created. GPU accelerated compression Supported: yes, Enabled: yes/yes. Test passed. YCoCgDXT PSNR: 35.83, BC3 PSNR: 33.82
   5.751 Parallel Sprite Loader initialized (threads: 3)
  14.350 Sprites loaded
  14.928 Generated mipmaps for atlas of size 16384x1104
  15.496 Generated mipmaps for atlas of size 16384x656
  16.178 Generated mipmaps for atlas of size 16384x2096
  16.596 Generated mipmaps for atlas of size 16384x480
  16.721 Generated mipmaps for atlas of size 16384x456
  16.785 Generated mipmaps for atlas of size 16384x384
  16.845 Generated mipmaps for virtual atlas of size 4096x8192
  16.860 Custom inputs active: 0
  16.997 Factorio initialised
  65.245 Info HttpSharedState.cpp:54: Downloading https://mods.factorio.com/api/mods?page_size=max&namelist=AfraidOfTheDark&namelist=angelsinfiniteores&namelist=auto-research&namelist=AutoDeconstruct&namelist=autofill&namelist=AutoTrash&namelist=Bottleneck&namelist=creative-mode-fix&namelist=Enhanced_Map_Colors&namelist=FARL&namelist=FNEI&namelist=GhostPlacerExpress&namelist=long-reach&namelist=ModuleInserter&namelist=Nanobots&namelist=RibbonMaze&namelist=rso-mod&namelist=Spaghetti-Lockdown&namelist=Squeak%20Through&namelist=stdlib&namelist=TheFatController&namelist=TimeTools&namelist=upgrade-planner&namelist=VehicleSnap&namelist=WaterWel
  66.098 Info HttpSharedState.cpp:147: Status code: 200
  66.117 Info HttpSharedState.cpp:54: Downloading https://mods.factorio.com/api/mods/Nanobots/full
  66.472 Info HttpSharedState.cpp:147: Status code: 200
  66.475 Error CachedChangelog.cpp:54: Failed to parse changelog for mod Nanobots: Early Bots: invalid changelog file, error on line 10, duplicate Date: line.
  72.929 Loading map /Users/gregdosh/Library/Application Support/factorio/saves/Tutorial Testing.zip: 3066034 bytes.
  73.014 Loading Level.dat: 4451939 bytes.
  73.026 Info Scenario.cpp:147: Map version 0.17.4-1
  73.251 Loading script.dat: 134625 bytes.
  73.308 Checksum for script /Users/gregdosh/Library/Application Support/factorio/temp/currently-playing/control.lua: 4289712941
 124.492 Error CrashHandler.cpp:515: Received SIGSEGV
Factorio crashed. Generating symbolized stacktrace, please wait ...
 124.520 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
 124.533 Warning Logger.cpp:487: Couldn't symbolize stacktrace: (resolving symbol failed: fread). Make sure you have atos installed to produce better stacktraces

 124.533 Error CrashHandler.cpp:174: Map tick at moment of crash: 4213795
 124.533 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.