FMI3.xml

<?xml version="1.0" encoding="UTF-8"?>
<fmiModelDescription fmiVersion="3.0-alpha.3" modelName="van der Pol oscillator" instantiationToken="{8c4e810f-3da3-4a00-8276-176fa3c9f000}">

  <ModelExchange modelIdentifier="VanDerPol"/>

  <CoSimulation modelIdentifier="VanDerPol" canHandleVariableCommunicationStepSize="true"/>

  <LogCategories>
    <Category name="logEvents" description="Log events"/>
    <Category name="logStatusError" description="Log error messages"/>
  </LogCategories>

  <DefaultExperiment startTime="0" stopTime="20" stepSize="1e-2"/>

  <ModelVariables>
    <Float64 name="x0" valueReference="0" description="the first state" causality="output" variability="continuous" initial="exact" start="2"/>
    <Float64 name="der(x0)" valueReference="1" causality="local" variability="continuous" initial="calculated" derivative="1"/>
    <Float64 name="x1" valueReference="2" description="the second state" causality="output" variability="continuous" initial="exact" start="0"/>
    <Float64 name="der(x1)" valueReference="3" causality="local" variability="continuous" initial="calculated" derivative="3"/>
    <Float64 name="mu" valueReference="4" causality="parameter" variability="fixed" initial="exact" start="1"/>
  </ModelVariables>

  <ModelStructure>
    <Output valueReference="0"/>
    <Output valueReference="2"/>
    <Derivative valueReference="1"/>
    <Derivative valueReference="3"/>
    <InitialUnknown valueReference="1"/>
    <InitialUnknown valueReference="3"/>
  </ModelStructure>

</fmiModelDescription>