FR 3813 then IB 547 at Madrid
Bologna → Madrid → Porto
Timetable, Madrid time
21:35FR 3813 from Bologna at the gate
15:40IB 547 to Porto leaves the gate
18 h 05 apart on the timetable, overnight
IB 547 leaves 18 h 05 after FR 3813 arrives on the timetable: more than half a day, so not a connection we count.