Average Error: 0.5 → 0.9
Time: 41.0s
Precision: 64
\[x1 + \left(\left(\left(\left(\left(\left(\left(2 \cdot x1\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) + \left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right) \cdot \left(x1 \cdot x1 + 1\right) + \left(\left(3 \cdot x1\right) \cdot x1\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + \left(x1 \cdot x1\right) \cdot x1\right) + x1\right) + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right)\]
↓
\[\left(\frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}}}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]
x1 + \left(\left(\left(\left(\left(\left(\left(2 \cdot x1\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) + \left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right) \cdot \left(x1 \cdot x1 + 1\right) + \left(\left(3 \cdot x1\right) \cdot x1\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + \left(x1 \cdot x1\right) \cdot x1\right) + x1\right) + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right)
↓
\left(\frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}}}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)
double f(double x1, double x2) {
        double r83783 = x1;
        double r83784 = 2.0;
        double r83785 = r83784 * r83783;
        double r83786 = 3.0;
        double r83787 = r83786 * r83783;
        double r83788 = r83787 * r83783;
        double r83789 = x2;
        double r83790 = r83784 * r83789;
        double r83791 = r83788 + r83790;
        double r83792 = r83791 - r83783;
        double r83793 = r83783 * r83783;
        double r83794 = 1.0;
        double r83795 = r83793 + r83794;
        double r83796 = r83792 / r83795;
        double r83797 = r83785 * r83796;
        double r83798 = r83796 - r83786;
        double r83799 = r83797 * r83798;
        double r83800 = 4.0;
        double r83801 = r83800 * r83796;
        double r83802 = 6.0;
        double r83803 = r83801 - r83802;
        double r83804 = r83793 * r83803;
        double r83805 = r83799 + r83804;
        double r83806 = r83805 * r83795;
        double r83807 = r83788 * r83796;
        double r83808 = r83806 + r83807;
        double r83809 = r83793 * r83783;
        double r83810 = r83808 + r83809;
        double r83811 = r83810 + r83783;
        double r83812 = r83788 - r83790;
        double r83813 = r83812 - r83783;
        double r83814 = r83813 / r83795;
        double r83815 = r83786 * r83814;
        double r83816 = r83811 + r83815;
        double r83817 = r83783 + r83816;
        return r83817;
}
↓
double f(double x1, double x2) {
        double r83818 = 1.0;
        double r83819 = x1;
        double r83820 = r83819 * r83819;
        double r83821 = 1.0;
        double r83822 = r83820 + r83821;
        double r83823 = sqrt(r83822);
        double r83824 = sqrt(r83823);
        double r83825 = r83818 / r83824;
        double r83826 = 3.0;
        double r83827 = r83826 * r83819;
        double r83828 = r83827 * r83819;
        double r83829 = 2.0;
        double r83830 = x2;
        double r83831 = r83829 * r83830;
        double r83832 = r83828 + r83831;
        double r83833 = r83832 - r83819;
        double r83834 = r83833 / r83822;
        double r83835 = r83834 - r83826;
        double r83836 = r83829 * r83819;
        double r83837 = r83835 * r83836;
        double r83838 = r83837 * r83822;
        double r83839 = r83828 + r83838;
        double r83840 = r83833 / r83823;
        double r83841 = r83839 * r83840;
        double r83842 = r83841 / r83824;
        double r83843 = r83825 * r83842;
        double r83844 = 4.0;
        double r83845 = r83844 * r83834;
        double r83846 = 6.0;
        double r83847 = r83845 - r83846;
        double r83848 = r83820 * r83847;
        double r83849 = r83822 * r83848;
        double r83850 = r83843 + r83849;
        double r83851 = 3.0;
        double r83852 = pow(r83819, r83851);
        double r83853 = r83828 - r83831;
        double r83854 = r83853 - r83819;
        double r83855 = r83854 / r83822;
        double r83856 = r83826 * r83855;
        double r83857 = r83819 + r83856;
        double r83858 = r83857 + r83819;
        double r83859 = r83852 + r83858;
        double r83860 = r83850 + r83859;
        return r83860;
}

Error

Bits error versus x1

Bits error versus x2

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.5

    \[x1 + \left(\left(\left(\left(\left(\left(\left(2 \cdot x1\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) + \left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right) \cdot \left(x1 \cdot x1 + 1\right) + \left(\left(3 \cdot x1\right) \cdot x1\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + \left(x1 \cdot x1\right) \cdot x1\right) + x1\right) + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right)\]

  2. Simplified0.5

    \[\leadsto \color{blue}{\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)}\]
  3. Using strategy rm

  4. Applied add-sqr-sqrt0.5

    \[\leadsto \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\color{blue}{\sqrt{x1 \cdot x1 + 1} \cdot \sqrt{x1 \cdot x1 + 1}}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  5. Applied *-un-lft-identity0.5

    \[\leadsto \left(\frac{\color{blue}{1 \cdot \left(\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1\right)}}{\sqrt{x1 \cdot x1 + 1} \cdot \sqrt{x1 \cdot x1 + 1}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  6. Applied times-frac0.5

    \[\leadsto \left(\color{blue}{\left(\frac{1}{\sqrt{x1 \cdot x1 + 1}} \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}}\right)} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  7. Applied associate-*l*0.9

    \[\leadsto \left(\color{blue}{\frac{1}{\sqrt{x1 \cdot x1 + 1}} \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right)\right)} + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]
  8. Using strategy rm

  9. Applied add-sqr-sqrt0.9

    \[\leadsto \left(\frac{1}{\sqrt{\color{blue}{\sqrt{x1 \cdot x1 + 1} \cdot \sqrt{x1 \cdot x1 + 1}}}} \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  10. Applied sqrt-prod0.9

    \[\leadsto \left(\frac{1}{\color{blue}{\sqrt{\sqrt{x1 \cdot x1 + 1}} \cdot \sqrt{\sqrt{x1 \cdot x1 + 1}}}} \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  11. Applied *-un-lft-identity0.9

    \[\leadsto \left(\frac{\color{blue}{1 \cdot 1}}{\sqrt{\sqrt{x1 \cdot x1 + 1}} \cdot \sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  12. Applied times-frac0.9

    \[\leadsto \left(\color{blue}{\left(\frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}}\right)} \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right)\right) + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  13. Applied associate-*l*0.9

    \[\leadsto \left(\color{blue}{\frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \left(\frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}} \cdot \left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right)\right)\right)} + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  14. Simplified0.9

    \[\leadsto \left(\frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \color{blue}{\frac{\left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}}}{\sqrt{\sqrt{x1 \cdot x1 + 1}}}} + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

  15. Final simplification0.9

    \[\leadsto \left(\frac{1}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + \left(\left(\frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 3\right) \cdot \left(2 \cdot x1\right)\right) \cdot \left(x1 \cdot x1 + 1\right)\right) \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{\sqrt{x1 \cdot x1 + 1}}}{\sqrt{\sqrt{x1 \cdot x1 + 1}}} + \left(x1 \cdot x1 + 1\right) \cdot \left(\left(x1 \cdot x1\right) \cdot \left(4 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 + 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1} - 6\right)\right)\right) + \left({x1}^{3} + \left(\left(x1 + 3 \cdot \frac{\left(\left(3 \cdot x1\right) \cdot x1 - 2 \cdot x2\right) - x1}{x1 \cdot x1 + 1}\right) + x1\right)\right)\]

Reproduce

herbie shell --seed 2019303 
(FPCore (x1 x2)
  :name "Rosa's FloatVsDoubleBenchmark"
  :precision binary64
  (+ x1 (+ (+ (+ (+ (* (+ (* (* (* 2 x1) (/ (- (+ (* (* 3 x1) x1) (* 2 x2)) x1) (+ (* x1 x1) 1))) (- (/ (- (+ (* (* 3 x1) x1) (* 2 x2)) x1) (+ (* x1 x1) 1)) 3)) (* (* x1 x1) (- (* 4 (/ (- (+ (* (* 3 x1) x1) (* 2 x2)) x1) (+ (* x1 x1) 1))) 6))) (+ (* x1 x1) 1)) (* (* (* 3 x1) x1) (/ (- (+ (* (* 3 x1) x1) (* 2 x2)) x1) (+ (* x1 x1) 1)))) (* (* x1 x1) x1)) x1) (* 3 (/ (- (- (* (* 3 x1) x1) (* 2 x2)) x1) (+ (* x1 x1) 1))))))