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remfin: fix a corner case for rabin_to_buchi_maybe

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when fin_alone sets where presents (i.e., not really Rabin condition),
the rabin_to_buchi_maybe() could fail to notice DBA-typeness.

* spot/twaalgos/remfin.cc: Don't set scc_ba_type to false when
fin_alone is present.
* tests/core/remfin.test: Add a test case.
This commit is contained in:
Alexandre Duret-Lutz 2017-04-04 13:53:16 +02:00
parent cebc4b00b5
commit b442d2bbd4
3 changed files with 58 additions and 11 deletions
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50
tests/core/remfin.test
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@ -1,7 +1,8 @@
#!/bin/sh
# -*- coding: utf-8 -*-
# Copyright (C) 2015, 2016 Laboratoire de Recherche et Développement
# de l'Epita (LRDE).
# Copyright (C) 2015-2017 Laboratoire de Recherche et Développement de
# l'Epita (LRDE).
#
# This file is part of Spot, a model checking library.
#
@ -236,6 +237,19 @@ State: 15 [t] 15 {4 15} [1] 16 {4} [!1] 22 {15} State: 16 [t] 16 {4 16}
[t] 31 {14} [!1] 32 State: 32 [t] 32 {15} [1] 33 State: 33 [t] 33 {16}
[!1] 36 State: 34 [t] 34 State: 35 [1] 34 {11} [!1] 35 {5} State: 36
[1] 34 {23} [!1] 36 {17} --END--
HOA: v1
States: 2
Acceptance: 3 Fin(0) | (Fin(1)&Inf(2))
Start: 0
AP: 1 "a"
--BODY--
State: 0 {0}
[0] 1
[!0] 0
State: 1 {2}
[0] 1
[!0] 0
--END--
EOF
acctwelve='Inf(0)&Inf(1)&Inf(2)&Inf(3)&Inf(4)&Inf(5)'
@ -713,6 +727,22 @@ State: 36
[1] 34
[!1] 36 {0 1 2 3 4 5 6 7 8 9 10}
--END--
HOA: v1
States: 2
Start: 0
AP: 1 "a"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc complete
properties: deterministic
--BODY--
State: 0
[0] 1
[!0] 0
State: 1 {0}
[0] 1
[!0] 0
--END--
EOF
cat >expected-tgba <<EOF
@ -1156,6 +1186,22 @@ State: 36
[1] 34
[!1] 36
--END--
HOA: v1
States: 2
Start: 0
AP: 1 "a"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc complete
properties: deterministic
--BODY--
State: 0
[!0] 0
[0] 1
State: 1 {0}
[!0] 0
[0] 1
--END--
EOF
run 0 $autfilt -H --remove-fin test1 > output