Regression test for cbmc#2497

This example does not terminate without the fix provided in #2497.
Infinite loop in simplify_expr.

Author: Joel Allred

jbmc/regression/jbmc/simplify_expr_termination/test.class

@@ -0,0 +1,10 @@
+CORE
+test.class
+--function test.check
+^VERIFICATION FAILED$
+^EXIT=10$
+^SIGNAL=0$
+--
+^warning: ignoring
+--
+Checks that a non-termination bug no longer occurs in simplify_byte_extract

jbmc/regression/jbmc/simplify_expr_termination/test.desc

@@ -0,0 +1,11 @@
+public class test {
+
+  public static int check()
+  {
+    boolean[] assigned = new boolean[3];
+    if (assigned[0] == false) {
+        assert false;
+    }
+    return 1;
+  }
+}