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% EXPECT: unsat
OPTION "logic" "ALL_SUPPORTED";
IntPair: TYPE = [INT, INT];
x : SET OF IntPair;
y : SET OF IntPair;
z : SET OF IntPair;
r : SET OF IntPair;
w : SET OF IntPair;
f : IntPair;
ASSERT f = (3,1);
ASSERT f IS_IN x;
g : IntPair;
ASSERT g = (1,3);
ASSERT g IS_IN y;
h : IntPair;
ASSERT h = (3,5);
ASSERT h IS_IN x;
ASSERT h IS_IN y;
ASSERT r = (x JOIN y);
e : IntPair;
ASSERT NOT (e IS_IN r);
ASSERT NOT(z = (x & y));
ASSERT z = (x - y);
ASSERT x <= y;
ASSERT e IS_IN (r JOIN z);
ASSERT e IS_IN x;
ASSERT e IS_IN (x & y);
CHECKSAT TRUE;
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