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% EXPECT: unsat
OPTION "logic" "ALL";
IntPair: TYPE = [INT, INT];
x : SET OF IntPair;
y : SET OF IntPair;
r : SET OF IntPair;
z : SET OF INT;
f : INT;
g : INT;
e : IntPair;
ASSERT e = (4, f);
ASSERT e IS_IN x;
d : IntPair;
ASSERT d = (g,3);
ASSERT d IS_IN y;
ASSERT z = {f, g};
ASSERT 0 = f - g;
a : IntPair;
ASSERT a = (4,3);
ASSERT r = (x JOIN y);
ASSERT NOT (a IS_IN r);
CHECKSAT;
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