I have executed test using below commands

pabot Testsuite/Sample.robot

Above command executed 6 test cases, in which 4 were passed 

pabot --rerunfailed output.xml --output rerun.xm Testsuite/Sample.robot

Above command will execute the failed test cases (2) which got failed in intial execution.

rebot merge output.xml rerun.xml

Above command will merge both .xml file and generate new report.html and log.html,(refer to the attached screenshot please) 

Issue Observed:

The summary of jenkins is not getting updated with the latest stats of report.html/log.html