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hoa: add option 'b' to build an alias-based basis for all labels

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Related to issue #563.

* spot/twaalgos/hoa.hh (create_alias_basis): New function.
* spot/twaalgos/hoa.cc (create_alias_basis): New function.
(print_hoa): Add support for option 'b' and create_alias_basis
in this case.
* bin/common_aoutput.cc, NEWS: Document -Hb.
* tests/core/readsave.test, tests/python/aliases.py: Add test cases.
This commit is contained in:
Alexandre Duret-Lutz 2024-03-22 14:41:42 +01:00
parent 03a4f01184
commit 7e228e86ee
6 changed files with 129 additions and 12 deletions
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7
NEWS
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@ -12,6 +12,13 @@ New in spot 2.11.6.dev (not yet released)
autfilt input.hoa -o output-%l.hoa
- For tools that produce automata, using -Hb or --hoa=b will produce
an HOA file in which aliases are used to form a basis for the
whole set of labels. Those aliases are only used when more than
one atomic proposition is used (otherwise, the atomic proposition
and its negation is already a basis). This can help reducing the
size of large HOA files.
- ltlfilt has a new option --relabel-overlapping-bool=abc|pnn that
will replace boolean subformulas by fresh atomic propositions even
if those subformulas share atomic propositions.