(set-option :verbose true)
(declare-const x Real)
(assert (= (+ (* 2.0 x) -2.0 2.0 (* -1.0 x)) 1.0))
(debug graph)
(check-sat)
(get-model)
-------------------------
0 ==> true
1 ==> false
2 ==> x
3 ==> 1.0
4 ==> $2 = $3
5 ==> assert $4
sat
2 iterations of propagation
0 decisions
  6 narrowing of a value interval
  6 narrowing of a constraint interval
x = 1.0