demo.xml

<?xml version="1.0" ?>
<nta>
    

    <declaration>// Place global declarations here.
broadcast chan a, b, c, d;</declaration>
    <template>
        <name>Template</name>
        <declaration>// Place local declarations here.
clock t;</declaration>
        <location id="id0" x="-306" y="-85">
            <name x="-316" y="-119">start</name>
            <label kind="invariant" x="-331" y="-68">t&lt;=10</label>
        </location>
        <location id="id1" x="-204" y="-51">
            <label kind="invariant" x="-221" y="-34">t&lt;=20</label>
        </location>
        <location id="id2" x="-204" y="-127"/>
        <location id="id3" x="-102" y="-85">
            <name x="-112" y="-119">pass</name>
        </location>
        <init ref="id0"/>
        <transition>
            <source ref="id1"/>
            <target ref="id3"/>
            <label kind="synchronisation" x="-161" y="-59">d!</label>
        </transition>
        <transition>
            <source ref="id2"/>
            <target ref="id3"/>
            <label kind="synchronisation" x="-153" y="-127">b!</label>
        </transition>
        <transition>
            <source ref="id0"/>
            <target ref="id2"/>
            <label kind="guard" x="-255" y="-102">t&gt;=10</label>
            <label kind="synchronisation" x="-272" y="-127">a!</label>
        </transition>
        <transition>
            <source ref="id0"/>
            <target ref="id1"/>
            <label kind="synchronisation" x="-272" y="-68">c!</label>
        </transition>
    </template>
    <system>// Place template instantiations here.
P1 = Template();
// List one or more processes to be composed into a system.
system P1;
    </system>
    <queries>
        <query>
            <formula>E&lt;&gt; P1.pass</formula>
            <comment/>
        </query>
    </queries>
</nta>