test/regress/regress0/bt-test-01.smt2

   1 ; EXPECT: unsat
   2 (set-logic QF_UF)
   3 (set-info :smt-lib-version 2.0)
   4 (set-info :category "crafted")
   5 (set-info :status unsat)
   6
   7 (declare-fun x0 () Bool)
   8 (declare-fun y0 () Bool)
   9 (declare-fun z0 () Bool)
  10
  11 (assert (or x0 y0))
  12 (assert (or (not y0) z0))
  13
  14 (declare-fun x1 () Bool)
  15 (declare-fun y1 () Bool)
  16
  17 (assert x1)
  18 (assert y1)
  19
  20 (declare-fun f (Bool) Bool)
  21
  22 (assert (not (= (f (or x0 z0)) (f (and x1 y1)))))
  23
  24 (check-sat)
  25
  26 (exit)