</a><code><span><span class="keyword">val</span> mk_smtlib2_single : <span>?name:<span>string option</span> <span class="arrow">&#45;&gt;</span></span> <span><a href="../Environment/index.html#type-t">Env.t</a> <span class="arrow">&#45;&gt;</span></span> <span>string <span class="arrow">&#45;&gt;</span></span> <a href="../Constraint/index.html#type-t">Constr.t</a></span></code></div><div class="spec-doc"><p><code>mk_smtlib2_single name env smtlib_str</code> takes in a string representing a valid SMT-Lib-2 s