Jenkins timeout not aborting job - jenkins

Question

I have a Jenkins pipeline where I have the following code (jenkinsfile):
stage('My stage') {
options {
timeout(time: 5, unit: "MINUTES")
}
steps {
script {
./run_script.sh
}
}
}
}
With this code I was expecting that If the run_script.sh would take more than 5 minutes, the job would abort.
But this is not the case (even with jenkins telling me "Sending interrupt signal to process").. After running the job I get this:
...
17:09:40 Timeout set to expire in 5 min 0 sec
[Pipeline] {
[Pipeline] script
[Pipeline] {
17:09:40 ./run_script.sh '
17:14:40 Cancelling nested steps due to timeout
17:14:40 Sending interrupt signal to process
17:14:48 ...
17:14:48 + JOB_NAME=...
17:14:48 + BUILD_URL=...
17:14:48 + BUILD_ID=777
17:14:48 + BUILD_RESULT=SUCCESS
The job gets executed and I can see the green success status in jenkins.
Why is this happening and how can I make it so when a timeout occurs the job gets aborted?
EDIT:
Not sure if this is relevant or not but the run_script.sh is a script which connects to a remote server using ssh and runs some docker commands (docker run...). Running this script using timeout gives me the following msgs:
...
12:07:22 Cancelling nested steps due to timeout
12:07:22 Sending interrupt signal to process........
.........
Finished: SUCCESS
As you can see the status stays success instead of aborted!!!
I need to capture this "timeout" so I can send notifications to users. One way would be to capture the aborted status but if the status is success how can i do it?
The run_script.sh looks like this:
#!/bin/bash
ssh user#server.com "
ssh -p 30 xdy#localhost ' docker run --rm --name cont1 -e FTP_USER=$User -e FTP_PASSWD=$Pass -v /home/logs:/usr/myapp -w /usr/myapp server2.com:3000/mylog:1.1 python script.py' "
script.py is a simple script to copy some files from a server to another.