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<head><title>Symbolic_Execution_of_Models.html -- ACL2 Version 3.1</title></head>
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<h2>Symbolic Execution of Models</h2>
<p>
But ACL2 is more than a programming language. <p>
Initialize <b>x</B> to 5 and let <b>y</B> be <b>any legal value</B>.<p>
<img src=computing-machine-5xy.gif><p>
<p>
Because ACL2 is a mathematical language, we can simplify the expression<p>
<pre>
(lookup 'z (mc (s 'mult 5 y) 29))
</pre>
<p>
and get (+ y y y y y). This is <b>symbolic execution</B> because not all
of the parameters are known.<p>
<a href="Proving_Theorems_about_Models.html"><img src=flying.gif></a>
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