">Exit</span></code></td></tr></table></dt><dt class="spec type" id="type-smt_ans"><a href="#type-smt_ans" class="anchor"></a><code><span class="keyword">type</span> <span>('a, 'v, 'b, 'm) smt_ans</span></code><code> = </code><table class="variant"><tr id="type-smt_ans.Error" class="anchored"><td class="def constructor"><a href="#type-smt_ans.Error" class="anchor"></a><code>| </code><code><span class="constructor">Error</span> <span class="keyword">of</span> string</code></td></tr><tr id="type-smt_ans.Versi