Lemma round13eq: forall buf S12 S13, S13 = mbed_tls_fround S12 buf 52 -> Int.xor (Int.xor (Int.xor (Int.xor (Int.repr (Znth 52 buf)) (Znth (Z.land (Int.unsigned (col 0 S12)) (Int.unsigned (Int.repr 255))) FT0)) (Znth (Z.land (Int.unsigned (Int.shru (col 1 S12) (Int.repr 8))) (Int.unsigned (Int.repr 255))) FT1)) (Znth (Z.land (Int.unsigned (Int.shru (col 2 S12) (Int.repr 16))) (Int.unsigned (Int.repr 255))) FT2)) (Znth (Z.land (Int.unsigned (Int.shru (col 3 S12) (Int.repr 24))) (Int.unsigned (Int.repr 255))) FT3) = col 0 S13 /\ Int.xor (Int.xor (Int.xor (Int.xor (Int.repr (Znth 53 buf)) (Znth (Z.land (Int.unsigned (col 1 S12)) (Int.unsigned (Int.repr 255))) FT0)) (Znth (Z.land (Int.unsigned (Int.shru (col 2 S12) (Int.repr 8))) (Int.unsigned (Int.repr 255))) FT1)) (Znth (Z.land (Int.unsigned (Int.shru (col 3 S12) (Int.repr 16))) (Int.unsigned (Int.repr 255))) FT2)) (Znth (Z.land (Int.unsigned (Int.shru (col 0 S12) (Int.repr 24))) (Int.unsigned (Int.repr 255))) FT3) = col 1 S13 /\ Int.xor (Int.xor (Int.xor (Int.xor (Int.repr (Znth 54 buf)) (Znth (Z.land (Int.unsigned (col 2 S12)) (Int.unsigned (Int.repr 255))) FT0)) (Znth (Z.land (Int.unsigned (Int.shru (col 3 S12) (Int.repr 8))) (Int.unsigned (Int.repr 255))) FT1)) (Znth (Z.land (Int.unsigned (Int.shru (col 0 S12) (Int.repr 16))) (Int.unsigned (Int.repr 255))) FT2)) (Znth (Z.land (Int.unsigned (Int.shru (col 1 S12) (Int.repr 24))) (Int.unsigned (Int.repr 255))) FT3) = col 2 S13 /\ Int.xor (Int.xor (Int.xor (Int.xor (Int.repr (Znth 55 buf)) (Znth (Z.land (Int.unsigned (col 3 S12)) (Int.unsigned (Int.repr 255))) FT0)) (Znth (Z.land (Int.unsigned (Int.shru (col 0 S12) (Int.repr 8))) (Int.unsigned (Int.repr 255))) FT1)) (Znth (Z.land (Int.unsigned (Int.shru (col 1 S12) (Int.repr 16))) (Int.unsigned (Int.repr 255))) FT2)) (Znth (Z.land (Int.unsigned (Int.shru (col 2 S12) (Int.repr 24))) (Int.unsigned (Int.repr 255))) FT3) = col 3 S13.