with depth and higher understanding in finding vulnerability in smart contrast analysis this contract line by line with depth and focus on every possible line that contain the vulnerability or bug that can be danger to the contract process all that you can find it with understand all the functions how they work together so as result provide an exhaustive list off all issues and vulnerabilities inside the following smart contract. Be in the issue descriptions and describe the actors involved. Include one exploit scenario in each vulnerability. Output as a valid markdown table with a list of objects that each have ‘description’ ‘action’ ‘severity’ "actors’ ‘scenario’, ‘type’, and ‘line’ columns. ‘type’ can be ‘usability’,
‘vulnerability’, ‘optimization’, or ‘suggestion’. ‘actors’ is a list of the involved actors. ‘severity’ can be ‘low + ice block emoji’,
‘medium’ or ‘high + fire emoji’. ‘line’ is the line number of the issue. Ensure that all fields of the table are filled out. and find the correct vulnerability with real and valid explaining and give all vulnerable lines with code and with details of explaining
HERE is the contract code /*

    Copyright 2020 DODO ZOO.
    SPDX-License-Identifier: Apache-2.0

*/

pragma solidity 0.8.16;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {GSPTrader} from "./GSPTrader.sol";
import {GSPFunding} from "./GSPFunding.sol";
import {GSPVault} from "./GSPVault.sol";

/**
 * @title DODO GasSavingPool
 * @author DODO Breeder
 *
 * @notice DODO GasSavingPool initialization
 */
contract GSP is GSPTrader, GSPFunding {
    /**
     * @notice Function will be called in factory, init risk should not be included.
     * @param maintainer The dodo's address, who can claim mtFee and own this pool
     * @param baseTokenAddress The base token address
     * @param quoteTokenAddress The quote token address
     * @param lpFeeRate The rate of lp fee, with 18 decimal
     * @param mtFeeRate The rate of mt fee, with 18 decimal
     * @param i The oracle price, possible to be changed only by maintainer
     * @param k The swap curve parameter
     * @param isOpenTWAP Use TWAP price or not
     */
    function init(
        address maintainer,
        address baseTokenAddress,
        address quoteTokenAddress,
        uint256 lpFeeRate,
        uint256 mtFeeRate,
        uint256 i,
        uint256 k,
        bool isOpenTWAP
    ) external {
        // GSP can only be initialized once
        require(!_GSP_INITIALIZED_, "GSP_INITIALIZED");
        // _GSP_INITIALIZED_ is set to true after initialization
        _GSP_INITIALIZED_ = true;
        // baseTokenAddress and quoteTokenAddress should not be the same
        require(baseTokenAddress != quoteTokenAddress, "BASE_QUOTE_CAN_NOT_BE_SAME");
        // _BASE_TOKEN_ and _QUOTE_TOKEN_ should be valid ERC20 tokens
        _BASE_TOKEN_ = IERC20(baseTokenAddress);
        _QUOTE_TOKEN_ = IERC20(quoteTokenAddress);

        // i should be greater than 0 and less than 10**36
        require(i > 0 && i <= 10**36);
        _I_ = i;
        // k should be greater than 0 and less than 10**18
        require(k <= 10**18);
        _K_ = k;

        // _LP_FEE_RATE_ is set when initialization
        _LP_FEE_RATE_ = lpFeeRate;
        // _MT_FEE_RATE_ is set when initialization
        _MT_FEE_RATE_ = mtFeeRate;
        // _MAINTAINER_ is set when initialization, the address receives the fee
        _MAINTAINER_ = maintainer;
        _IS_OPEN_TWAP_ = isOpenTWAP;
        // if _IS_OPEN_TWAP_ is true, _BLOCK_TIMESTAMP_LAST_ is set to the current block timestamp
        if (isOpenTWAP) _BLOCK_TIMESTAMP_LAST_ = uint32(block.timestamp % 2**32);

        string memory connect = "_";
        string memory suffix = "GSP";
        // name of the shares is the combination of suffix, connect and string of the GSP
        name = string(abi.encodePacked(suffix, connect, addressToShortString(address(this))));
        // symbol of the shares is GLP
        symbol = "GLP";
        // decimals of the shares is the same as the base token decimals
        decimals = IERC20Metadata(baseTokenAddress).decimals();

        // ============================== Permit ====================================
        uint256 chainId;
        assembly {
            chainId := chainid()
        }
        // DOMAIN_SEPARATOR is used for approve by signature
        DOMAIN_SEPARATOR = keccak256(
            abi.encode(
                // keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
                0x8b73c3c69bb8fe3d512ecc4cf759cc79239f7b179b0ffacaa9a75d522b39400f,
                keccak256(bytes(name)),
                keccak256(bytes("1")),
                chainId,
                address(this)
            )
        );
        // ==========================================================================
    }
    /**
     * @notice Convert the address to a shorter string
     * @param _addr The address to convert
     * @return A string representation of _addr in hexadecimal
     */
    function addressToShortString(address _addr) public pure returns (string memory) {
        bytes32 value = bytes32(uint256(uint160(_addr)));
        bytes memory alphabet = "0123456789abcdef";

        bytes memory str = new bytes(8);
        for (uint256 i = 0; i < 4; i++) {
            str[i * 2] = alphabet[uint8(value[i + 12] >> 4)];
            str[1 + i * 2] = alphabet[uint8(value[i + 12] & 0x0f)];
        }
        return string(str);
    }

    // ============ Version Control ============
    /**
     * @notice Return the version of DODOGasSavingPool
     * @return The current version is 1.0.1
     */
    function version() external pure returns (string memory) {
        return "GSP 1.0.1";
    }
}