% EXPECT: sat
OPTION "logic" "ALL_SUPPORTED";
+OPTION "sets-ext";
Atom: TYPE;
x : SET OF [Atom, Atom];
y : SET OF [Atom, Atom];
ASSERT x = {(f, g), (b, c), (d, e), (c, e)};
ASSERT (NOT(a = b)) OR (NOT(a = f));
-CHECKSAT;
\ No newline at end of file
+CHECKSAT;