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sccfilter: some inherently-weak automata should have t acceptance

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* spot/twaalgos/sccfilter.cc: If an inherently-weak automaton has
no rejecting cycle, reduce its acceptance to t instead of Büchi.
* spot/twa/acc.hh (operator==, operator<): Fix comparisons of
true acceptances.
* NEWS: Mention these two changes.
* spot/twaalgos/sccfilter.hh: Update documentation.
* spot/twaalgos/determinize.cc (tgba_determinize): The call
to scc_filter assume that the input BA is never reduced to t
acceptance.  Call scc_filter with an extra option to ensure that.
* spot/twaalgos/postproc.cc (do_scc_filter): Adjust to add the
extra option when we want to build Büchi or coBuchi.
(ensure_ba): Don't mark trivial SCCs as accepting.
* tests/core/complement.test, tests/core/dstar.test,
tests/core/ltlsynt.test, tests/core/readsave.test,
tests/core/wdba2.test, tests/python/_product_susp.ipynb,
tests/python/automata-io.ipynb, tests/python/dualize.py,
tests/python/highlighting.ipynb, tests/python/intrun.py,
tests/python/setacc.py, tests/python/simstate.py,
tests/python/stutter-inv.ipynb, tests/python/zlktree.py: Adjust test
cases.
This commit is contained in:
Alexandre Duret-Lutz 2023-11-17 13:41:19 +01:00
parent 13377542cd
commit 0e71dd70c1
20 changed files with 857 additions and 842 deletions
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tests/python/_product_susp.ipynb
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@ -626,199 +626,193 @@
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498
tests/python/automata-io.ipynb
View file

@ -121,60 +121,60 @@
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4
tests/python/dualize.py
View file

@ -1,6 +1,6 @@
#!/usr/bin/python3
# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2017-2019, 2021-2022 Laboratoire de Recherche et
# Copyright (C) 2017-2019, 2021-2023 Laboratoire de Recherche et
# Développement de l'EPITA.
#
# This file is part of Spot, a model checking library.
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State: 2

327
tests/python/highlighting.ipynb
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"<!-- 4&#45;&gt;4 -->\n",
"<g id=\"edge6\" class=\"edge\">\n",
"<title>4&#45;&gt;4</title>\n",
"<path fill=\"none\" stroke=\"#e31a1c\" stroke-width=\"2\" d=\"M374.99,-42.58C373.89,-52.84 376.55,-62 383,-62 387.83,-62 390.54,-56.85 391.13,-49.95\"/>\n",
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"</g>\n",
"<!-- 1 -->\n",
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"</g>\n",
"<!-- 1&#45;&gt;0 -->\n",
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"<title>1&#45;&gt;0</title>\n",
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"</g>\n",
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"<g id=\"edge4\" class=\"edge\">\n",
"<title>2&#45;&gt;1</title>\n",
"<path fill=\"none\" stroke=\"#e31a1c\" stroke-width=\"2\" d=\"M155.14,-22C166.12,-22 180.52,-22 192.67,-22\"/>\n",
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"</g>\n",
"</g>\n",
"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7efc200448d0> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fb7ef60b840> >"
]
},
"metadata": {},
@ -2776,7 +2771,7 @@
"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7efc20044f30> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fb7ec3dd860> >"
]
},
"execution_count": 19,
@ -2944,7 +2939,7 @@
"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7efc20044f30> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fb7ec3dd860> >"
]
},
"execution_count": 20,
@ -3107,7 +3102,7 @@
"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7efc20044f30> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7fb7ec3dd860> >"
]
},
"metadata": {},
@ -3601,7 +3596,7 @@
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
@ -3615,7 +3610,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.1+"
"version": "3.11.6"
}
},
"nbformat": 4,

16
tests/python/intrun.py
View file

@ -52,27 +52,27 @@ tc.assertEqual(str(r), """Prefix:
1
| a
0
| 1 {0}
| 1
0
| a {0}
| a
Cycle:
0
| 1 {0}
| 1
""")
tc.assertEqual(r.as_twa().to_str(), """HOA: v1
States: 4
Start: 0
AP: 1 "a"
acc-name: Buchi
Acceptance: 1 Inf(0)
acc-name: all
Acceptance: 0 t
properties: trans-labels explicit-labels state-acc deterministic
--BODY--
State: 0
[0] 1
State: 1 {0}
State: 1
[t] 2
State: 2 {0}
State: 2
[0] 3
State: 3 {0}
State: 3
[t] 3
--END--""")

6
tests/python/setacc.py
View file

@ -1,6 +1,6 @@
#!/usr/bin/python3
# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2016, 2018, 2021, 2022 Laboratoire de Recherche et
# Copyright (C) 2016, 2018, 2021, 2022, 2023 Laboratoire de Recherche et
# Développement de l'EPITA.
#
# This file is part of Spot, a model checking library.
@ -104,10 +104,10 @@ except RuntimeError as e:
from gc import collect
acc = spot.translate('a').acc()
collect()
tc.assertEqual(acc, spot.acc_cond('Inf(0)'))
tc.assertEqual(acc, spot.acc_cond('t'))
acc = spot.translate('b').get_acceptance()
collect()
tc.assertEqual(acc, spot.acc_code('Inf(0)'))
tc.assertEqual(acc, spot.acc_code('t'))
c = spot.acc_cond('Fin(0)&Fin(1)&(Inf(2)|Fin(3))')

3
tests/python/simstate.py
View file

@ -538,7 +538,8 @@ tc.assertEqual(spot.reduce_iterated_sba(aut).to_str(), '''HOA: v1
States: 1
Start: 0
AP: 1 "a"
Acceptance: 1 t
acc-name: all
Acceptance: 0 t
properties: trans-labels explicit-labels state-acc deterministic
properties: very-weak
--BODY--

124
tests/python/stutter-inv.ipynb
View file

@ -12,7 +12,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -24,7 +23,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -70,7 +68,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -98,7 +95,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -106,7 +102,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -137,7 +132,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -145,7 +139,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -171,7 +164,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -196,7 +188,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -221,7 +212,6 @@
]
},
{
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"cell_type": "markdown",
"metadata": {},
"source": [
@ -249,7 +239,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -313,7 +302,7 @@
"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7faad816be40> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7ff008667960> >"
]
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@ -342,7 +331,6 @@
]
},
{
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"cell_type": "markdown",
"metadata": {},
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@ -350,7 +338,6 @@
]
},
{
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"metadata": {},
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@ -407,7 +394,6 @@
]
},
{
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@ -415,7 +401,6 @@
]
},
{
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@ -425,7 +410,6 @@
]
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@ -619,7 +603,7 @@
"</svg>\n"
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]
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@ -632,7 +616,6 @@
]
},
{
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@ -662,7 +645,6 @@
]
},
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@ -830,7 +812,7 @@
"</svg>\n"
],
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@ -843,7 +825,6 @@
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@ -851,7 +832,6 @@
]
},
{
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@ -859,7 +839,6 @@
]
},
{
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@ -899,7 +878,6 @@
]
},
{
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"cell_type": "markdown",
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"source": [
@ -986,7 +964,7 @@
"</svg>\n"
],
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]
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@ -1084,7 +1062,7 @@
"</svg>\n"
],
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"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7ff008667cf0> >"
]
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@ -1104,7 +1082,6 @@
]
},
{
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"source": [
@ -1295,7 +1272,7 @@
"</svg>\n"
],
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]
},
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@ -1314,7 +1291,6 @@
]
},
{
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"source": [
@ -1425,7 +1401,7 @@
"</svg>\n"
],
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]
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@ -1439,7 +1415,6 @@
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{
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@ -1447,7 +1422,6 @@
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},
{
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@ -1478,87 +1452,83 @@
"<!-- Generated by graphviz version 2.43.0 (0)\n",
" -->\n",
"<!-- Pages: 1 -->\n",
"<svg width=\"245pt\" height=\"203pt\"\n",
" viewBox=\"0.00 0.00 245.00 203.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
"<g id=\"graph0\" class=\"graph\" transform=\"scale(1.0 1.0) rotate(0) translate(4 199)\">\n",
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"<text text-anchor=\"start\" x=\"98\" y=\"-180.8\" font-family=\"Lato\" font-size=\"14.00\">Inf(</text>\n",
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"<text text-anchor=\"start\" x=\"135\" y=\"-180.8\" font-family=\"Lato\" font-size=\"14.00\">)</text>\n",
"<text text-anchor=\"start\" x=\"97\" y=\"-166.8\" font-family=\"Lato\" font-size=\"14.00\">[Büchi]</text>\n",
"<svg width=\"245pt\" height=\"202pt\"\n",
" viewBox=\"0.00 0.00 245.00 202.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\n",
"<g id=\"graph0\" class=\"graph\" transform=\"scale(1.0 1.0) rotate(0) translate(4 198)\">\n",
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"<text text-anchor=\"start\" x=\"107.5\" y=\"-163.8\" font-family=\"Lato\" font-size=\"14.00\">[all]</text>\n",
"<!-- I -->\n",
"<!-- 3 -->\n",
"<g id=\"node2\" class=\"node\">\n",
"<title>3</title>\n",
"<path fill=\"#ffffaa\" stroke=\"black\" d=\"M62,-81C62,-81 50,-81 50,-81 44,-81 38,-75 38,-69 38,-69 38,-57 38,-57 38,-51 44,-45 50,-45 50,-45 62,-45 62,-45 68,-45 74,-51 74,-57 74,-57 74,-69 74,-69 74,-75 68,-81 62,-81\"/>\n",
"<text text-anchor=\"middle\" x=\"56\" y=\"-59.3\" font-family=\"Lato\" font-size=\"14.00\">3</text>\n",
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"<text text-anchor=\"middle\" x=\"56\" y=\"-57.3\" font-family=\"Lato\" font-size=\"14.00\">3</text>\n",
"</g>\n",
"<!-- I&#45;&gt;3 -->\n",
"<g id=\"edge1\" class=\"edge\">\n",
"<title>I&#45;&gt;3</title>\n",
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"<polygon fill=\"black\" stroke=\"black\" points=\"37.94,-63 30.94,-66.15 34.44,-63 30.94,-63 30.94,-63 30.94,-63 34.44,-63 30.94,-59.85 37.94,-63 37.94,-63\"/>\n",
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"</g>\n",
"<!-- 0 -->\n",
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"</g>\n",
"<!-- 3&#45;&gt;0 -->\n",
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"<title>3&#45;&gt;0</title>\n",
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"<polygon fill=\"black\" stroke=\"black\" points=\"121.92,-97.83 114.26,-97.3 118.83,-96.18 115.75,-94.52 115.75,-94.52 115.75,-94.52 118.83,-96.18 117.24,-91.75 121.92,-97.83 121.92,-97.83\"/>\n",
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"<!-- 3&#45;&gt;1 -->\n",
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"<title>3&#45;&gt;1</title>\n",
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"</g>\n",
"<!-- 0&#45;&gt;2 -->\n",
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"</g>\n",
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"<title>2&#45;&gt;2</title>\n",
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"</g>\n",
"<!-- 1&#45;&gt;1 -->\n",
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"<title>1&#45;&gt;1</title>\n",
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"</g>\n",
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"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7faad8057450> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7ff008667ed0> >"
]
},
"metadata": {},
@ -1573,7 +1543,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -1605,7 +1574,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -1820,7 +1788,7 @@
"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7faad816b390> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7ff0086676c0> >"
]
},
"metadata": {},
@ -1845,7 +1813,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -1874,7 +1841,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -2136,7 +2102,7 @@
"</svg>\n"
],
"text/plain": [
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7faad816b390> >"
"<spot.twa_graph; proxy of <Swig Object of type 'std::shared_ptr< spot::twa_graph > *' at 0x7ff0086676c0> >"
]
},
"metadata": {},
@ -2158,7 +2124,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -2186,7 +2151,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -2309,7 +2273,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -2337,7 +2300,6 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"metadata": {},
"source": [
@ -2367,7 +2329,7 @@
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
@ -2381,7 +2343,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.8.6rc1"
"version": "3.11.6"
}
},
"nbformat": 4,

1
tests/python/zlktree.py
View file

@ -27,6 +27,7 @@ trans-acc --BODY-- State: 0 [!0&!1] 3 [!0&!1] 4 State: 1 [!0&!1] 4 {3}
[0&!1] 0 {2} [!0&1] 1 {2} State: 2 [!0&1] 0 {0 2} [!0&!1] 1 State: 3
[!0&1] 2 State: 4 [0&!1] 3 --END--""")
b = spot.zielonka_tree_transform(a)
spot.is_weak_automaton(b)
tc.assertTrue(spot.are_equivalent(a, b))
tc.assertTrue(b.acc().is_buchi())