Extract WETH error in the bot executor contract

[xinming365]

Dear sir,

I deployed a bot-executr contract on Arbitrum using your code. Currently, I want to extract the balance of the weth, however, I encountered this error.

ValueError: Execution reverted during call: 'execution reverted: WETH BALANCE REDUCTION'. This transaction will likely revert. If you wish to broadcast, include allow_revert:True as a transaction parameter.

Here is the traction parameters:

tx_params = { "from": bot_account.address, # "from": executor_contract.address, "chainId": brownie.chain.id, "gas": TX_GAS_LIMIT, "nonce": bot_account.nonce, "maxPriorityFeePerGas":0, "value":0, }
Here is the payloads:

TX_GAS_LIMIT= 250_000_000
withdrawal_amount = int(0.2*10**18)
TOKEN_CONTRACT_ADDRESS = "0x82aF49447D8a07e3bd95BD0d56f35241523fBab1" # WETH address
payload_signature = brownie.web3.keccak(text="transfer(address,uint256)")

payload_data = eth_abi.encode_abi(
    ["address", "uint256"],
    [bot_account.address, withdrawal_amount])
payload = payload_signature[:4] + payload_data
# Get the hex value of the payload
payload_hex = '0x' + payload.hex()
# Submit the transaction, with the appropriate token to withdraw
tx = executor_contract.execute_payloads(
    [(TOKEN_CONTRACT_ADDRESS, payload_hex, 0)],
    tx_params
)`

I used brownie and connect the arb-chain network. I could not find the failure reason.

[salparadi]

Try passing balance_check = false with your execute_payloads call. I think the latest version of the executor has that True by default

@external
@payable
def execute_payloads(
    payloads: DynArray[payload, MAX_PAYLOADS],
    balance_check: bool = True,
    bribe_bips: uint256 = 0
):

[xinming365]

Thanks for your advice. I did not found that the execute_payloads function has a parameter of balance_check in the newer version, that's my fault. After modifying the old ABI, and add the balance_check parameter, I succeed. Thank you very much.

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