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Alexandre Duret-Lutz 2020-07-15 14:06:23 +02:00
commit 1513a9d996
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NEWS
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@ -1,29 +1,4 @@
New in spot 2.9.0.dev (not yet released)
Command-line tools:
- 'ltl2tgba -G -D' is now better at handling formulas that use
'<->' and 'xor' operators at the top level. For instance
ltl2tgba -D -G '(Fa & Fb & Fc & Fd) <-> GFe'
now produces a 16-state automaton (instead of 31 in Spot 2.9).
- Option '-x wdba-minize=N' used to accept N=0 (off), or N=1 (on).
It can now take three values:
0: never attempt this optimization,
1: always try to determinize and minimize automata as WDBA,
and check (if needed) that the result is correct,
2: determinize and minimize automata as WDBA only if it is known
beforehand (by cheap syntactic means) that the result will be
correct (e.g., the input formula is a syntactic obligation).
The default is 1 in "--high" mode, 2 in "--medium" mode or in
"--deterministic --low" mode, and 0 in other "--low" modes.
- ltlsynt learned --algo=ps to use the default conversion to
deterministic parity automata (the same as ltl2tgba -DP'max odd').
- ltlsynt now has a -x option to fine-tune the translation. See the
spot-x(7) man page for detail. Unlike ltl2tgba, ltlsynt defaults
to simul=0,ba-simul=0,det-simul=0,tls-impl=1,wdba-minimize=2.
New in spot 2.9.1.dev (not yet released)
Library:
@ -62,8 +37,37 @@ New in spot 2.9.0.dev (not yet released)
file. With this refactoring, we can retrieve both a kripke or a
kripkecube from a PINS file.
New in spot 2.9.1 (2020-07-15)
Command-line tools:
- 'ltl2tgba -G -D' is now better at handling formulas that use
'<->' and 'xor' operators at the top level. For instance
ltl2tgba -D -G '(Fa & Fb & Fc & Fd) <-> GFe'
now produces a 16-state automaton (instead of 31 in Spot 2.9).
- Option '-x wdba-minize=N' used to accept N=0 (off), or N=1 (on).
It can now take three values:
0: never attempt this optimization,
1: always try to determinize and minimize automata as WDBA,
and check (if needed) that the result is correct,
2: determinize and minimize automata as WDBA only if it is known
beforehand (by cheap syntactic means) that the result will be
correct (e.g., the input formula is a syntactic obligation).
The default is 1 in "--high" mode, 2 in "--medium" mode or in
"--deterministic --low" mode, and 0 in other "--low" modes.
- ltlsynt learned --algo=ps to use the default conversion to
deterministic parity automata (the same as ltl2tgba -DP'max odd').
- ltlsynt now has a -x option to fine-tune the translation. See the
spot-x(7) man page for detail. Unlike ltl2tgba, ltlsynt defaults
to simul=0,ba-simul=0,det-simul=0,tls-impl=1,wdba-minimize=2.
Library:
- product_xor() and product_xnor() are two new versions of the
synchronized product. The only work with operands that are
synchronized product. They only work with operands that are
deterministic automata, and build automata whose language are
respectively the symmetric difference of the operands, and the
complement of that.
@ -101,6 +105,14 @@ New in spot 2.9.0.dev (not yet released)
issues in intersecting_run(), exclusive_run(),
intersecting_word(), exclusive_word(), which all call reduce().
- ltlcross used to crash with "Too many acceptance sets used. The
limit is 32." when complementing an automaton would require more
acceptance sets than supported by Spot. This is now diagnosed
with --verbose, but does not prevent ltlcross from continuing.
- scc_info::edges_of() and scc_info::inner_edges_of() now correctly
honor any filter passed to scc_info.
New in spot 2.9 (2020-04-30)
Command-line tools: