IB 5803 then IB 5138 at Barcelona
Catania → Barcelona → Alicante
Timetable, Barcelona time
20:55IB 5803 from Catania at the gatealso LL 5803, VY 6119
18:00IB 5138 to Alicante leaves the gate
21 h 05 apart on the timetable, overnight
IB 5138 leaves 21 h 05 after IB 5803 arrives on the timetable: more than half a day, so not a connection we count.