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simplify: some new simplification rules

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For #263, reported by Mikuláš Klokočka.

G(a & Xe1 & F(b & e2)) = G(a & e1 & Fb & e2)
F(a | Xu1 | G(b | u2)) = F(a | u1 | Gb | u2)

* spot/tl/simplify.cc: Implement the rules.
* doc/tl/tl.tex, NEWS: Document them.
* tests/core/reduccmp.test, tests/core/eventuniv.test: Add test cases.
* tests/core/det.test, tests/core/ltl2tgba2.test: Adjust to expect
smaller automata.
* THANKS: Add Mikuláš.
This commit is contained in:
Alexandre Duret-Lutz 2017-09-02 09:30:26 +02:00
parent cd6f1c2c3e
commit 646c5170ed
8 changed files with 89 additions and 20 deletions
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doc/tl/tl.tex
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@ -1682,6 +1682,10 @@ $q,\,q_i$ & a pure eventuality that is also purely universal \\
\end{align*}
\begin{align*}
\G(f_1\AND\ldots\AND f_n \AND \X e_1 \AND \ldots \AND \X e_p)&\equiv \G(f_1\AND\ldots\AND f_n \AND e_1 \AND \ldots \AND e_p) \\
\G(f_1\AND\ldots\AND f_n \AND \F (g_1 \AND \ldots \AND g_p \AND \X e_1 \AND \X e_m))&\equiv \G(f_1\AND\ldots\AND f_n \AND \F(g_1 \AND \ldots \AND g_p) \AND e_1 \AND \ldots \AND e_m) \\
\F(f_1\OR\ldots\OR f_n \OR \X u_1 \OR \ldots \OR \X u_p)&\equiv \F(f_1\OR\ldots\OR f_n \OR u_1 \OR \ldots \AND u_p) \\
\F(f_1\OR\ldots\OR f_n \OR \G (g_1 \OR \ldots \OR g_p \OR \X u_1 \OR \X u_m))&\equiv \F(f_1\OR\ldots\AND f_n \OR \G(g_1 \OR \ldots \OR g_p) \OR u_1 \OR \ldots \OR u_m) \\
\G(f_1\OR\ldots\OR f_n \OR q_1 \OR \ldots \OR q_p)&\equiv \G(f_1\OR\ldots\OR f_n)\OR q_1 \OR \ldots \OR q_p \\
\F(f_1\AND\ldots\AND f_n \AND q_1 \AND \ldots \AND q_p)&\equivEU \F(f_1\AND\ldots\AND f_n)\AND q_1 \AND \ldots \AND q_p \\
\G(f_1\AND\ldots\AND f_n \AND q_1 \AND \ldots \AND q_p)&\equivEU \G(f_1\AND\ldots\AND f_n)\AND q_1 \AND \ldots \AND q_p \\