Inferred loop invariants
LOOP:
   N = size(B)
   S = sum(B[0..I-1])¨
   N in [7..13]
   I in [0..13]¨
   I <= N¨
   B: All elements in [-100..100]
   B[0..I-1]: All elements in [-100..100]
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Loop invariant: 0  i  n and s = (j: 0  j < i : b[j])