FR 835 then FR 878 at Barcelona
Vilnius → Barcelona → Venezia
Timetable, Barcelona time
10:30FR 835 from Vilnius at the gate
08:30FR 878 to Venezia leaves the gate
22 h apart on the timetable, overnight
FR 878 leaves 22 h after FR 835 arrives on the timetable: more than half a day, so not a connection we count.