Sonar-pitest-plugin-0.9.1 is not working with SonarQube 7.6

The mutation analysis took 12 mins with one rule and with 23 rules took same time. Is this correct way parsing mutations.xml files or do I need to pass any parameters.
I gave output mutations directory as “build/reports/pitest/mutations.xml”.

Thanks for your help Gerald

So the number of rules doesn’t have any impact on the processing time, and it seems you’re doing the analysis right, otherwise you wouldn’t have any output at all.
In order to find out, why it takes so long, what would you do next?