λ x x0 : word128 * word128,
Interp-η
(λ var : Syntax.base_type → Type,
 λ '(x4, x5, (x6, x7))%core,
 uint128_t x9, uint128_t x10 = mulx_u128(x5, x7);
 uint128_t x12, uint128_t x13 = mulx_u128(x5, x6);
 uint128_t x15, uint8_t x16 = addcarryx_u128(0x0, x10, x12);
 uint128_t x18, uint8_t _ = addcarryx_u128(0x0, x16, x13);
 uint128_t x21, uint128_t _ = mulx_u128(x9, 0x1000000000000000000000001L);
 uint128_t x24, uint128_t x25 = mulx_u128(x21, 0xffffffffffffffffffffffffL);
 uint128_t x27, uint128_t x28 = mulx_u128(x21, 0xffffffff000000010000000000000000L);
 uint128_t x30, uint8_t x31 = addcarryx_u128(0x0, x25, x27);
 uint128_t x33, uint8_t _ = addcarryx_u128(0x0, x31, x28);
 uint128_t _, uint8_t x37 = addcarryx_u128(0x0, x9, x24);
 uint128_t x39, uint8_t x40 = addcarryx_u128(x37, x15, x30);
 uint128_t x42, uint8_t x43 = addcarryx_u128(x40, x18, x33);
 uint128_t x45, uint128_t x46 = mulx_u128(x4, x7);
 uint128_t x48, uint128_t x49 = mulx_u128(x4, x6);
 uint128_t x51, uint8_t x52 = addcarryx_u128(0x0, x46, x48);
 uint128_t x54, uint8_t _ = addcarryx_u128(0x0, x52, x49);
 uint128_t x57, uint8_t x58 = addcarryx_u128(0x0, x39, x45);
 uint128_t x60, uint8_t x61 = addcarryx_u128(x58, x42, x51);
 uint128_t x63, uint8_t x64 = addcarryx_u128(x61, x43, x54);
 uint128_t x66, uint128_t _ = mulx_u128(x57, 0x1000000000000000000000001L);
 uint128_t x69, uint128_t x70 = mulx_u128(x66, 0xffffffffffffffffffffffffL);
 uint128_t x72, uint128_t x73 = mulx_u128(x66, 0xffffffff000000010000000000000000L);
 uint128_t x75, uint8_t x76 = addcarryx_u128(0x0, x70, x72);
 uint128_t x78, uint8_t _ = addcarryx_u128(0x0, x76, x73);
 uint128_t _, uint8_t x82 = addcarryx_u128(0x0, x57, x69);
 uint128_t x84, uint8_t x85 = addcarryx_u128(x82, x60, x75);
 uint128_t x87, uint8_t x88 = addcarryx_u128(x85, x63, x78);
 uint8_t x89 = (x88 + x64);
 uint128_t x91, uint8_t x92 = subborrow_u128(0x0, x84, 0xffffffffffffffffffffffffL);
 uint128_t x94, uint8_t x95 = subborrow_u128(x92, x87, 0xffffffff000000010000000000000000L);
 uint128_t _, uint8_t x98 = subborrow_u128(x95, x89, 0x0);
 uint128_t x99 = cmovznz(x98, x94, x87);
 uint128_t x100 = cmovznz(x98, x91, x84);
 return (x99, x100))
(x, x0)%core
     : word128 * word128 → word128 * word128 → ReturnType (uint128_t * uint128_t)