crypto/bn/bn_add.c:85: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned64 by call to `BN_ucmp`.
Showing all 5 steps of the trace


crypto/bn/bn_add.c:64:1: Parameter `b->top`
62.   
63.   /* r can == a or b */
64. > int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b)
65.   	{
66.   	const BIGNUM *tmp;

crypto/bn/bn_add.c:85:7: Call
83.   		/* we are now a - b */
84.   
85.   		if (BN_ucmp(a,b) < 0)
            ^
86.   			{
87.   			if (!BN_usub(r,b,a)) return(0);

crypto/bn/bn_lib.c:656:1: <LHS trace>
654.   	}
655.   
656. > int BN_ucmp(const BIGNUM *a, const BIGNUM *b)
657.   	{
658.   	int i;

crypto/bn/bn_lib.c:656:1: Parameter `a->top`
  654.   	}
  655.   
  656. > int BN_ucmp(const BIGNUM *a, const BIGNUM *b)
  657.   	{
  658.   	int i;

crypto/bn/bn_lib.c:668:7: Binary operation: ([0, +oo] - 1):unsigned64 by call to `BN_ucmp` 
  666.   	ap=a->d;
  667.   	bp=b->d;
  668.   	for (i=a->top-1; i>=0; i--)
               ^
  669.   		{
  670.   		t1= ap[i];
