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twagraph: improve copy of kripke_graph

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Fix #505, Reported by Edmond Irani Liu.

* spot/twa/twagraph.cc (copy): Deal with kripke_graph in a better way.
* spot/twaalgos/hoa.cc: Do not force the use of named-states since
when the input is a kripke_graph.
* tests/python/kripke.py: Adjust test cases.
* NEWS: Mention the change.
* THANKS: Add Edmund.
This commit is contained in:
Alexandre Duret-Lutz 2022-05-09 13:42:20 +02:00
parent ef9267a58e
commit 013c879b41
5 changed files with 54 additions and 14 deletions
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42
tests/python/kripke.py
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@ -29,35 +29,53 @@ p2 = buddy.bdd_ithvar(k.register_ap("p2"))
cond1 = p1 & p2
cond2 = p1 & -p2
cond3 = -p1 & -p2
s2 = k.new_state(cond1)
s0 = k.new_state(cond1)
s1 = k.new_state(cond2)
s3 = k.new_state(cond3)
s2 = k.new_state(cond3)
k.new_edge(s1, s0)
k.new_edge(s0, s0)
k.new_edge(s1, s2)
k.new_edge(s2, s2)
k.new_edge(s1, s3)
k.new_edge(s3, s3)
k.new_edge(s3, s2)
k.new_edge(s2, s0)
k.set_init_state(s1)
hoa = """HOA: v1
States: 3
Start: 0
Start: 1
AP: 2 "p1" "p2"
acc-name: all
Acceptance: 0 t
properties: state-labels explicit-labels state-acc
--BODY--
State: [0&!1] 0 "1"
1 2
State: [0&1] 1 "0"
1
State: [!0&!1] 2 "2"
2 1
State: [0&1] 0
0
State: [0&!1] 1
0 2
State: [!0&!1] 2
2 0
--END--"""
tc.assertEqual(hoa, k.to_str('HOA'))
tc.assertEqual(k.num_states(), 3)
tc.assertEqual(k.num_edges(), 5)
k.set_state_names(["s0", "s1", "s2"])
hoa = """HOA: v1
States: 3
Start: 1
AP: 2 "p1" "p2"
acc-name: all
Acceptance: 0 t
properties: state-labels explicit-labels state-acc
--BODY--
State: [0&1] 0 "s0"
0
State: [0&!1] 1 "s1"
0 2
State: [!0&!1] 2 "s2"
2 0
--END--"""
tc.assertEqual(hoa, k.to_str('HOA'))
res = []
for e in k.out(s1):
res.append((e.src, e.dst))