Okay so the dd operation has finished:
32014962688 bytes (32 GB, 30 GiB) copied, 1636 s, 19.6 MB/s
dd: error writing '/dev/sda': No space left on device
7816961+0 records in
7816960+0 records out
32018268160 bytes (32 GB, 30 GiB) copied, 1661.8 s, 19.3 MB/s
I have just opened GParted and...