% EXPECT: not_entailed
x0, x1, x2, x3 : INT;
ASSERT (-13 * x0) + (-11 * x1) + (-14 * x2) + (21 * x3) = 6 ;
ASSERT  (7 * x0) + (5 * x1) + (13 * x2) + (21 * x3) <= 27 ;
ASSERT  (15 * x0) + (-11 * x1) + (-19 * x2) + (-13 * x3) < 5;
QUERY FALSE;