Exception for Kahan's Unum-Targeted Monster

• could not determine a ground truth for program body

  1. y = 154.03708428507528

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Math

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C

double code(double y) {
	double VAR;
	if ((((double) (((double) (((double) (((double) fabs(((double) (y - ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))) - ((double) (1.0 / ((double) (y + ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))))) * ((double) (((double) fabs(((double) (y - ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))) - ((double) (1.0 / ((double) (y + ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))))))) + ((double) pow(((double) pow(10.0, -300.0)), ((double) (10000.0 * ((double) (y + 1.0)))))))) == 0.0)) {
		VAR = 1.0;
	} else {
		VAR = ((double) (((double) (((double) exp(((double) (((double) (((double) (((double) fabs(((double) (y - ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))) - ((double) (1.0 / ((double) (y + ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))))) * ((double) (((double) fabs(((double) (y - ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))) - ((double) (1.0 / ((double) (y + ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))))))) + ((double) pow(((double) pow(10.0, -300.0)), ((double) (10000.0 * ((double) (y + 1.0)))))))))) - 1.0)) / ((double) (((double) (((double) (((double) fabs(((double) (y - ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))) - ((double) (1.0 / ((double) (y + ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))))) * ((double) (((double) fabs(((double) (y - ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))) - ((double) (1.0 / ((double) (y + ((double) sqrt(((double) (((double) (y * y)) + 1.0)))))))))))) + ((double) pow(((double) pow(10.0, -300.0)), ((double) (10000.0 * ((double) (y + 1.0))))))))));
	}
	return VAR;
}

Reproduce

herbie shell --seed 2020192 
(FPCore (y)
  :name "Kahan's Unum-Targeted Monster"
  :precision binary64
  :pre (<= 1.0 y 9999.0)
  (if (== (+ (* (- (fabs (- y (sqrt (+ (* y y) 1.0)))) (/ 1.0 (+ y (sqrt (+ (* y y) 1.0))))) (- (fabs (- y (sqrt (+ (* y y) 1.0)))) (/ 1.0 (+ y (sqrt (+ (* y y) 1.0)))))) (pow (pow 10.0 -300.0) (* 10000.0 (+ y 1.0)))) 0.0) 1.0 (/ (- (exp (+ (* (- (fabs (- y (sqrt (+ (* y y) 1.0)))) (/ 1.0 (+ y (sqrt (+ (* y y) 1.0))))) (- (fabs (- y (sqrt (+ (* y y) 1.0)))) (/ 1.0 (+ y (sqrt (+ (* y y) 1.0)))))) (pow (pow 10.0 -300.0) (* 10000.0 (+ y 1.0))))) 1.0) (+ (* (- (fabs (- y (sqrt (+ (* y y) 1.0)))) (/ 1.0 (+ y (sqrt (+ (* y y) 1.0))))) (- (fabs (- y (sqrt (+ (* y y) 1.0)))) (/ 1.0 (+ y (sqrt (+ (* y y) 1.0)))))) (pow (pow 10.0 -300.0) (* 10000.0 (+ y 1.0)))))))