% EXPECT: unsat
OPTION "logic" "ALL_SUPPORTED";
IntTup: TYPE = [INT, INT, INT];
x : SET OF IntTup;
y : SET OF IntTup;
z : IntTup;
ASSERT z = (1,2,3);
zt : IntTup;
ASSERT zt = (3,2,1);
ASSERT z IS_IN x;
ASSERT NOT (zt IS_IN (TRANSPOSE x));
CHECKSAT;