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dot: fix printing of alternating automata

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Related to #208.

* spot/twaalgos/dot.cc: Fix missing definitions of universal nodes,
and inclusion of universal nodes inside of SCC when none of the
destination comes back to the SCC.
* tests/python/_altscc.ipynb: Adjust and add more test cases.
* tests/core/alternating.test, tests/core/neverclaimread.test,
tests/core/readsave.test, tests/core/sccdot.test,
tests/python/decompose.ipynb: Adjust test cases.
* NEWS: Mention the bug.
This commit is contained in:
Alexandre Duret-Lutz 2017-05-31 17:14:52 +02:00
parent 617a7187b3
commit 97f3efabe3
8 changed files with 1603 additions and 1173 deletions
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NEWS
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@ -108,6 +108,11 @@ New in spot 2.3.4.dev (not yet released)
single ltl2tgba run could produce automata different from those
produced by individual runs.
- The print_dot() function had a couple of issues when printing
alternating automata: in particular, when using flag 's' (display
SCC) or 'y' (split universal destination by colors) universal
edges could be connected to undefined states.
Backward-incompatible changes:
- spot::acc_cond::mark_t::operator bool() has been marked as