FB 471 then FR 4066 at Madrid
Sofia → Madrid → Catania
Timetable, Madrid time
16:20FB 471 from Sofia at the gate
09:30FR 4066 to Catania leaves the gate
17 h 10 apart on the timetable, overnight
FR 4066 leaves 17 h 10 after FB 471 arrives on the timetable: more than half a day, so not a connection we count.