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tl: eight new simplification rules

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* NEWS, doc/tl/tl.tex: Document the rules.
* spot/tl/simplify.cc: Implement them.
* tests/core/reduccmp.test: Test them.
* tests/core/det.test, tests/core/ltl2tgba2.test,
tests/python/stutter-inv.ipynb, tests/core/385.test: Adjust.
This commit is contained in:
Alexandre Duret-Lutz 2019-07-08 10:59:36 +02:00
parent d244ff5432
commit 0d9cc29b46
8 changed files with 203 additions and 19 deletions
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10
NEWS
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@ -112,13 +112,21 @@ New in spot 2.7.5.dev (not yet released)
- spot::relabel_apply() makes it easier to reverse the effect
of spot::relabel() or spot::relabel_bse() on formula.
- The LTL simplifier learned the following optional rules:
- The LTL simplifier learned the following rules:
F(G(a | Fb)) = FGa | GFb (if option "favor_event_univ")
G(F(a | Gb)) = GFa | FGb (if option "favor_event_univ")
F(G(a & Fb) = FGa & GFb (unless option "reduce_size_strictly")
G(F(a & Gb)) = GFa & FGb (unless option "reduce_size_strictly")
GF(f) = GF(dnf(f)) (unless option "reduce_size_strictly")
FG(f) = FG(cnf(f)) (unless option "reduce_size_strictly")
(f & g) R h = f R h if h implies g
(f & g) M h = f M h if h implies g
(f | g) W h = f W h if g implies h
(f | g) U h = f U h if g implies h
Gf | F(g & eventual) = f W (g & eventual) if !f implies g
Ff & G(g | universal) = f M (g | universal) if f implies !g
f U (g & eventual) = F(g & eventual) if !f implies g
f R (g | universal) = G(g | universal) if f implies !g
- cleanup_parity() and colorize_parity() were cleaned up a bit,
resulting in fewer colors used in some cases. In particular,