I had Mathematica 12 installed ten days or so ago (and just now re-installed) on my university computer. Although I do seem to be able to run sustained programs for a day or so, it has also totally unexpectedly crashed on various occasions, even running a few basic lines of commands.
I'd written to firstname.lastname@example.org, but only received as a reply so far:
"In order to better diagnose the issue, please provide more information such as:
-A simple code sample of, say, 10-20 lines that essentially illustrate the issue.
-A screenshot of any windows that show up.
-Any error messages you see when you try to open Mathematica."
Hard to do if everything disappears.
I've been using Mathematica intensively for decades now, and have never encountered a problem remotely similar to this.
I've also been running version 12 at home, and this phenomenon has not occurred there.
Guess I'll just use Version 11 on campus (for which I've never had such a problem) until this matter resolves itself.
This is my "hardware overview":
Model Name: Mac mini Model Identifier: Macmini4,1 Processor Name: Intel Core 2 Duo Processor Speed: 2.4 GHz Number of Processors: 1 Total Number of Cores: 2 L2 Cache: 3 MB Memory: 4 GB Bus Speed: 1.07 GHz Boot ROM Version: 18.104.22.168.0 SMC Version (system): 1.65f2 Serial Number (system): C07DV0VLDD6L Hardware UUID: 58037265-42DA-53A2-8C8C-EF4D37D3AFB6
In response to the comments, here's the beginning of the Console user report:
Process: Mathematica  Path: /Applications/Mathematica 3.app/Contents/MacOS/Mathematica Identifier: Mathematica Version: 22.214.171.12406964 (12.0) Code Type: X86-64 (Native) Parent Process: ???  Responsible: Mathematica  User ID: 503
Date/Time: 2019-04-30 12:40:21.397 -0700 OS Version: Mac OS X 10.12.6 (16G1918) Report Version: 12 Anonymous UUID: 52BDE4CB-BD76-9870-077B-D24E45CE6A58
Sleep/Wake UUID: 1F6DA416-FBD3-4B99-9E68-426AE388E0DB
Time Awake Since Boot: 320000 seconds Time Since Wake: 840 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000078 Exception Note: EXC_CORPSE_NOTIFY
VM Regions Near 0x78: --> __TEXT 000000010dc25000-000000010e9b7000 [ 13.6M] r-x/rwx SM=COW /Applications/Mathematica 3.app/Contents/MacOS/Mathematica
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.wolfram.Mathematica 0x000000010e12219c 0x10dc25000 + 5231004 1 com.wolfram.Mathematica 0x000000010df48c10 0x10dc25000 + 3292176
Any more needed? Insightful?