[PATCH 14/26] rv/rvgen: remove redundant initial_state removal

From: Wander Lairson Costa

Date: Mon Jan 19 2026 - 16:04:25 EST


Remove an unnecessary and incorrect list removal operation in the
automata state variable processing. The code attempted to remove
initial_state from the states list, but this element was never
added to the list in the first place. States with the __init_
prefix are explicitly excluded from the states list during the
parsing loop, with only the initial_state variable being set
from them.

Calling remove() on an element that does not exist in a list
raises a ValueError. This code would have failed during execution
when processing any DOT file containing an initial state marker.
The subsequent insert operation at index 0 correctly adds the
initial_state to the beginning of the states list, making the
removal operation both incorrect and redundant.

Signed-off-by: Wander Lairson Costa <wander@xxxxxxxxxx>
---
tools/verification/rvgen/rvgen/automata.py | 1 -
1 file changed, 1 deletion(-)

diff --git a/tools/verification/rvgen/rvgen/automata.py b/tools/verification/rvgen/rvgen/automata.py
index 7841a6e70bad2..b302af3e5133e 100644
--- a/tools/verification/rvgen/rvgen/automata.py
+++ b/tools/verification/rvgen/rvgen/automata.py
@@ -111,7 +111,6 @@ class Automata:
cursor += 1

states = sorted(set(states))
- states.remove(initial_state)

# Insert the initial state at the beginning of the states
states.insert(0, initial_state)
--
2.52.0