Re: [tlaplus] Distributed model-checking

[Markus Kuppe <tlaplus-google-group@xxxxxxxxxxx>]

Hi Jesse,

TLC won't serialize the generated traces if you run it without (the optional) `file=output_dir`.  The purpose of the `file` sub-command is to serialize traces if one wants to post-process them with third-party tools or subsequent TLC runs.

Markus

> On Jul 4, 2024, at 7:30 PM, A. Jesse Jiryu Davis <jesse@xxxxxxxxxxxxxxx> wrote:
> 
> Thanks for the quick answer as usual Markus, this is helpful. I'll try simulation mode.
> 
> Is there a way to prevent TLC from outputting a trace file for successful runs (runs without invariant violations)? I want to run a lot of simulations to ease my anxiety about deeply-hidden bugs, e.g.:
> 
> java -jar tla2tools.jar -simulate num=100000,file=output_dir/ mcMySpec.tla -workers 8 -cleanup -deadlock
> 
> This produces num * workers = 800000 traces, and the output_dir/ directory grows very large. On macOS it takes a lot of disk space and it takes a very long time to delete! I want to output a trace only if/when there's an invariant violation.

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