sfdisk: libfdisk/src/table.c:420: new_freespace: Assertion `end > start' failed.
Checking that no-one is using this disk right now ... OK

Disk /dev/sda: 5 GiB, 5400000000 bytes, 10546875 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 952C7563-14BB-45FC-9E42-49C0CF79FC79

Old situation:

Device       Start     End Sectors  Size Type
/dev/sda1     8192   16383    8192    4M BIOS boot
/dev/sda2    16384  147455  131072   64M EFI System
/dev/sda3   147456 2244607 2097152    1G Linux filesystem
/dev/sda4  2244608 4341759 2097152    1G Linux filesystem
/dev/sda5  4341760 7617153 3275394  1.6G Linux filesystem

/dev/sda5: