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Bug 548

Summary: Simulate filters out too many points with stop condition
Product: UPPAAL Reporter: Erik Ramsgaard Wognsen <erw>
Component: EngineAssignee: Alexandre David <adavid>
Status: NEW ---    
Severity: minor    
Priority: P5    
Version: unspecified   
Hardware: PC   
OS: Linux   
Attachments: A simple system to illustrate the bug

Description Erik Ramsgaard Wognsen 2013-04-11 19:39:02 CEST
Tested in UPPAAL 4.1.14 (rev. 5212)

With the attached simple system, the queries

simulate 50 [<=1] {P.Done}
simulate 50 [<=1] {P.Done} : P.Done
simulate 50 [<=1] {P.Done} : wallclock >= 1

draw the expected result with only horizontal and vertical line segments in the plot. However, the queries

simulate 50 [<=500] {P.Done} : P.Done
simulate 50 [<=500] {P.Done} : wallclock >= 1

draw undesirables results with lots of sloped lines (some of them are vertical as expected, though). Presumably addPoint in server/modules/statmc/ProbaChecker.cpp considers too many points to be in the same "column" and skips them because the stop condition changes the effective overall plot width from 500 to 1 time unit. Changing the trace resolution in the Statistical parameters menu affects which lines in the plot become sloped and which ones that stay vertical as they were expected to.
Comment 1 Erik Ramsgaard Wognsen 2013-04-11 19:42:25 CEST
Created attachment 257 [details]
A simple system to illustrate the bug

It didn't seem to keep my attachment the first time.