Unstable result from innerproduct_test

[winnnnnny]

Hello, sorry for disturbing you.

I tried innerproduct_test from the provided example applications several times and find out that the result is unstable.

Here is an example. I also print out the values in xvals and yvals.

xvals: 32993 46346 46776 14282 61770 60677 24724 64341 32137 62579 64784 8095 24106 63381 36567 26086 34010 52700 846 2628 25653 52943 31924 52558 15833 21180 36419 37719 53397 40228 56055 28453 7675 39781 17065 5602 40178 27560 44758 5093 64183 10137 55549 30056 17885 2303 5527 32934 46375 21723 49588 40622 20336 30798 17228 60150 62164 50942 52608 30052 20210 13362 63112 38939 53476 41855 22453 61759 19588 42347 62912 52692 41714 46182 53560 33744 43054 33972 27866 19046 2503 53335 12307 2209 11044 3177 15982 2425 28432 20947 59306 24691 36261 11919 504 14398 26330 27963 51755 4998 9192 5684 64044 17335 56717 43397 27437 21776 61216 62290 64660 64727 13349 64093 57326 62368 11730 26158 10625 37179 16240 52295 17592 41840 42231 9457 49746 1274 
yvals: 13519 48676 59486 52913 24206 55862 34155 2180 29621 22654 52354 22637 24122 45239 20491 4024 6896 15251 1447 62617 63305 50377 51748 64062 49601 15081 29275 60525 35564 24429 778 24530 15618 8521 42409 42718 58546 6567 14582 60592 26273 35066 47856 43410 4748 8404 30757 13202 7179 63440 27326 24231 2646 65094 35891 15875 4752 52177 15462 4957 32355 25737 46296 43951 60663 37528 16942 42789 27021 36817 36962 59541 38098 28786 10698 8235 47106 40630 7376 15806 60901 24956 49558 31896 44556 8420 55869 57696 48608 16456 54691 36824 58664 64127 30965 3007 2197 38638 30172 62799 8175 25175 8109 26940 38282 50488 2552 63698 33695 61720 11152 25455 27154 65104 3555 983 2516 10238 43493 1807 15040 43677 8535 13273 38594 41355 8649 63095 
Circuit Result: 17670
Verification Result: 56375

Can you tell me what is the reason behind this behavior?