Resolution:
The Hawk method invocation timeout of 10 seconds can be configured starting TRA 5.2.0 (SDK 5.0.6) and on.

Prior to SDK 5.0.6, a custom script called from a rulebase should return as quickly as possible, since it blocks the agent from taking further action while the script is running. If a custom script does not return in 10 seconds, the agent terminates script execution. For scripts that require more than 10 seconds to execute, redirect the output to a logfile and monitor the log file using hawk.

The Adapter SDK MHawkMethod class constructors in SDK 5.0.6 and on can configure Hawk AMI API parameter for the Hawk method timeout.