FR 4584 then IB 5136 at Barcelona
Porto → Barcelona → Alicante
Timetable, Barcelona time
19:05FR 4584 from Porto at the gate
15:25IB 5136 to Alicante leaves the gate
20 h 20 apart on the timetable, overnight
IB 5136 leaves 20 h 20 after FR 4584 arrives on the timetable: more than half a day, so not a connection we count.