diff --git a/src/testsuite/scheduling-wizards/environments/Matteo_preemption_fail.xgp b/src/testsuite/scheduling-wizards/environments/Matteo_preemption_fail.xgp
new file mode 100644
index 0000000..5b55d4c
--- /dev/null
+++ b/src/testsuite/scheduling-wizards/environments/Matteo_preemption_fail.xgp
@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+<!DOCTYPE sgpem SYSTEM "sgpem.dtd">
+<sgpem>
+  <resources/>
+  <schedulables>
+    <process name="pino" priority="0" arrival-time="0">
+      <threads>
+        <thread name="pane" priority="0" arrival-delta="0" lasts-for="7">
+          <requests/>
+        </thread>
+        <thread name="acqua" priority="0" arrival-delta="2" lasts-for="5">
+          <requests/>
+        </thread>
+        <thread name="polenta" priority="0" arrival-delta="0" lasts-for="5">
+          <requests/>
+        </thread>
+      </threads>
+    </process>
+  </schedulables>
+</sgpem>
diff --git a/src/testsuite/scheduling-wizards/wizard-priority-preemption-fail b/src/testsuite/scheduling-wizards/wizard-priority-preemption-fail
new file mode 100644
index 0000000..d6d419d
--- /dev/null
+++ b/src/testsuite/scheduling-wizards/wizard-priority-preemption-fail
@@ -0,0 +1,5 @@
+set cpu-policy 4
+
+load environments/Matteo_preemption_fail.xgp
+
+run