IB 5945 then FR 4545 at Barcelona
Strasbourg → Barcelona → Porto
Timetable, Barcelona time
10:15IB 5945 from Strasbourg at the gatealso LL 5945, VY 8145
09:20FR 4545 to Porto leaves the gate
23 h 05 apart on the timetable, overnight
FR 4545 leaves 23 h 05 after IB 5945 arrives on the timetable: more than half a day, so not a connection we count.