! expect signal SIGABRT
$ ${bindir:=.}/flatifier bogus_two_hosts_asymetric.xml "--log=root.fmt:[%10.6r]%e[%i:%P@%h]%e%m%n"
> [  0.000000] [0:maestro@] Switching to the L07 model to handle parallel tasks.
> [  0.000000] [0:maestro@] Error while loading bogus_two_hosts_asymetric.xml: The route between alice and bob already exists (Rq: routes are symmetrical by default).

! expect signal SIGABRT
$ ${bindir:=.}/flatifier bogus_two_hosts_asymetric-2.xml "--log=root.fmt:[%10.6r]%e[%i:%P@%h]%e%m%n"
> [  0.000000] [0:maestro@] Switching to the L07 model to handle parallel tasks.
> [  0.000000] [0:maestro@] Error while loading bogus_two_hosts_asymetric-2.xml: The route between alice and bob already exists (Rq: routes are symmetrical by default).