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<?xml version="1.0" encoding="UTF-8"?>
<!-- we test 'optimally enabled set', specifically that preemption works correctly -->
<scxml xmlns="http://www.w3.org/2005/07/scxml" xmlns:conf="http://www.w3.org/2005/scxml-conformance" initial="s0" version="1.0" datamodel="ecmascript">
  <datamodel>
    <data id="Var1" expr="0"/>
  </datamodel>
  <state id="s0" initial="p0">
    <onentry>
      <raise event="event1"/>
      <send event="timeout" delay="1s"/>
    </onentry>
    <transition event="event2" target="fail"/>
    <transition event="timeout" target="fail"/>
    <parallel id="p0">
      <state id="p0s1">
        <transition event="event1"/>
        <transition event="event2"/>
      </state>
      <state id="p0s2">
        <transition event="event1" target="p0s1">
          <raise event="event2"/>
        </transition>
      </state>
      <state id="p0s3">
        <!-- this transition should be blocked by the one in p0s2-->
        <transition event="event1" target="fail"/>
        <!-- this transition will preempt the one that p0s2 inherits
   from an ancestor  -->
        <transition event="event2" target="s1"/>
      </state>
      <state id="p0s4">
        <!-- this transition never gets preempted, should fire twice -->
        <transition event="*">
          <assign location="Var1" expr="Var1 + 1"/>
        </transition>
      </state>
    </parallel>
  </state>
  <state id="s1">
    <transition cond="Var1==2" target="pass"/>
    <transition target="fail"/>
  </state>
  <final id="pass">
    <onentry>
      <log label="Outcome" expr="'pass'"/>
    </onentry>
  </final>
  <final id="fail">
    <onentry>
      <log label="Outcome" expr="'fail'"/>
    </onentry>
  </final>
</scxml>