Invalid ROA

[Fabiano D'Agostino]

Hi,
how can I check which prefixes are not valid and so rejected? It seems the
rpki is working, but I'd like to be sure. I have this:
if (roa_check(r4, net, bgp_path.last) = ROA_INVALID) then
{
print "Ignore RPKI invalid ", net, " for ASN ", bgp_path.last;

but I don't understand where the prints go.

Thanks,

Fabiano