Add proper support for :named smtlib annotations
#567
| Job | Run time |
|---|---|
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| 7m 17s | |
| 7m 26s | |
| 7m 14s | |
| 8m 31s | |
| 7m 52s | |
| 9m 1s | |
| 17m 11s | |
| 12m 0s | |
| 14m 43s | |
| 12m 26s | |
| 14m 0s | |
| 12m 31s | |
| 11m 14s | |
| 11m 5s | |
| 18m 48s | |
| 10m 2s | |
| 14m 28s | |
| 14m 36s | |
| 11m 24s | |
| 3h 52m 33s |