From 2c07b637610ea85a8278046448ce5f0c134efc2e Mon Sep 17 00:00:00 2001
From: J08nY
Date: Thu, 31 Jul 2025 14:53:50 +0200
Subject: Cleanup check inputs in EPA.

---
 pyecsca/sca/re/epa.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pyecsca/sca/re/epa.py b/pyecsca/sca/re/epa.py
index 325f11d..5e2b78a 100644
--- a/pyecsca/sca/re/epa.py
+++ b/pyecsca/sca/re/epa.py
@@ -53,6 +53,9 @@ def graph_to_check_inputs(
     # Now handle the regular checks
     for point in points:
         formula = ctx.formulas[point]
+        if not formula:
+            # Skip input point or infty point (they magically appear and do not have an origin formula)
+            continue
         inputs = tuple(map(lambda pt: ctx.points[pt], ctx.parents[point]))
         check_list = formula_checks.setdefault(formula, [])
         check_list.append(inputs)
-- 
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