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; Epsilon Equivalence for Pendulum
; Constant declaration
(declare-const X_0 Real)
(declare-const X_1 Real)
(declare-const Y_0 Real)
(declare-const Y_1 Real)
(declare-const Y_2 Real)
(declare-const Y_3 Real)
; Bounded inputs: X must be within [0, 1]
(assert (>= X_0 0.0))
(assert (<= X_0 1.0))
(assert (>= X_1 0.0))
(assert (<= X_1 1.0))
; Violation of epsilon equivalence (epsilon = 0.1)
(define-fun absolute ((x Real)) Real (if (>= x 0) x (- x)))
(assert (or
(> (absolute (- Y_0 Y_2)) 0.1)
(> (absolute (- Y_1 Y_3)) 0.1)
))
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