See also https://yabaitech.tokyo/techbookfest10/2020/12/20/techbookfest10.html.

1. backtrack
2. bcp
3. 2wl
4. ncb
5. cdcl (clause learning)
6. cdcl (clause deletion)
7. vsids
8. vsids (priority queue)
9. evsids
10. phase-saving
11. luby-restart
12. trail-reuse
13. ccmin
14. ccmin (full)
15. simp
16. lbd