λ x x0 : word64 * word64 * word64 * word64 * word64,
Interp-η
(λ var : Syntax.base_type → Type,
 λ '(x10, x11, x9, x7, x5, (x18, x19, x17, x15, x13))%core,
 uint64_t x21, uint8_t x22 = subborrow_u64(0x0, x5, x13);
 uint64_t x24, uint8_t x25 = subborrow_u64(x22, x7, x15);
 uint64_t x27, uint8_t x28 = subborrow_u64(x25, x9, x17);
 uint64_t x30, uint8_t x31 = subborrow_u64(x28, x11, x19);
 uint64_t x33, uint8_t x34 = subborrow_u64(x31, x10, x18);
 uint64_t x35 = cmovznz64(x34, 0x0, 0xffffffffffffffffL);
 uint64_t x36 = (x35 & 0xfffffffffffffffdL);
 uint64_t x38, uint8_t x39 = addcarryx_u64(0x0, x21, x36);
 uint64_t x40 = (x35 & 0xffffffffffffffffL);
 uint64_t x42, uint8_t x43 = addcarryx_u64(x39, x24, x40);
 uint64_t x44 = (x35 & 0xffffffffffffffffL);
 uint64_t x46, uint8_t x47 = addcarryx_u64(x43, x27, x44);
 uint64_t x48 = (x35 & 0xffffffffffffffffL);
 uint64_t x50, uint8_t x51 = addcarryx_u64(x47, x30, x48);
 uint64_t x52 = (x35 & 0x3ff);
 uint64_t x54, uint8_t _ = addcarryx_u64(x51, x33, x52);
 (Return x54, Return x50, Return x46, Return x42, Return x38))
(x, x0)%core
     : word64 * word64 * word64 * word64 * word64 → word64 * word64 * word64 * word64 * word64 → ReturnType (uint64_t * uint64_t * uint64_t * uint64_t * uint64_t)