FR 4083 then FR 777 at Barcelona
Warsaw Modlin → Barcelona → Venezia
Timetable, Barcelona time
19:10FR 4083 from Warsaw Modlin at the gate
11:20FR 777 to Venezia leaves the gate
16 h 10 apart on the timetable, overnight
FR 777 leaves 16 h 10 after FR 4083 arrives on the timetable: more than half a day, so not a connection we count.