Clients have not finished yet, although a timeout occurred.

[wppss]

when run test generation using command "java -Xmx4096m -jar ./smartut.jar -class com.xx.example"

[MASTER] 16:06:22.617 [main] ERROR ExternalProcessGroupHandler - Class com.xx.example Clients have not finished yet, although a timeout occurred.

Client-0: INITIALIZATION
[MASTER] 16:06:22.723 [main] ERROR SearchStatistics - No statistics has been saved because SmartUt failed to generate any test case
[MASTER] 16:06:22.826 [main] ERROR TestGeneration - failed to write statistics data