DeAi [Decentralized Ai] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

DeAi._transfer(address,address,uint256) (#977-1045) performs a multiplication on the result of a division:
-sellAmount = amount.mul(_ownerSellPercent).div(10 ** 4) (#1004)
-rSellAmount = sellAmount.mul(currentRate) (#1008)
Consider ordering multiplication before division.

Additional information: link

Reentrancy in DeAi._transfer(address,address,uint256) (#977-1045):
External calls:
- swapTokensForEth(contractTokenBalance) (#1032)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,owner(),block.timestamp) (#1056-1063)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1100)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1108)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1127)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1101)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1118)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1110)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1119)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1129)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- _rTotal = _rTotal.sub(rFee) (#895)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1126)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1117)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1109)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1128)
Apply the check-effects-interactions pattern.

Additional information: link

DeAi.allowance(address,address).owner (#761) shadows:
- Ownable.owner() (#581-583) (function)
DeAi._approve(address,address,uint256).owner (#957) shadows:
- Ownable.owner() (#581-583) (function)
Rename the local variables that shadow another component.

Additional information: link

DeAi.setTaxFeePercent(uint256) (#860-862) should emit an event for:
- _taxFee = taxFee (#861)
DeAi.setOwnerSellPercent(uint256) (#864-866) should emit an event for:
- _ownerSellPercent = ownerSell (#865)
DeAi.setMaxTxPercent(uint256) (#868-872) should emit an event for:
- _maxTxAmount = _tTotal.mul(maxTxPercent).div(10 ** 4) (#869-871)
Emit an event for critical parameter changes.

Additional information: link

DeAi.transferContractValue(address).recipient (#1071) lacks a zero-check on :
- (success) = recipient.call{value: amount}() (#1073)
Check that the address is not zero.

Additional information: link

Reentrancy in DeAi._transfer(address,address,uint256) (#977-1045):
External calls:
- swapTokensForEth(contractTokenBalance) (#1032)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,owner(),block.timestamp) (#1056-1063)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- _previousTaxFee = _taxFee (#944)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- _tFeeTotal = _tFeeTotal.add(tFee) (#896)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- _taxFee = _previousTaxFee (#950)
- _taxFee = 0 (#946)
Reentrancy in DeAi.constructor() (#713-733):
External calls:
- pancakeswapV2Pair = IPancakeswapV2Factory(_pancakeswapV2Router.factory()).createPair(address(this),_pancakeswapV2Router.WETH()) (#720)
State variables written after the call(s):
- _isExcluded[pancakeswapV2Pair] = true (#729)
- _isExcluded[address(this)] = true (#730)
- _isExcludedFromFee[owner()] = true (#726)
- _isExcludedFromFee[address(this)] = true (#727)
- pancakeswapV2Router = _pancakeswapV2Router (#723)
Reentrancy in DeAi.transferFrom(address,address,uint256) (#770-774):
External calls:
- _transfer(sender,recipient,amount) (#771)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,owner(),block.timestamp) (#1056-1063)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#772)
- _allowances[owner][spender] = amount (#961)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in DeAi._transfer(address,address,uint256) (#977-1045):
External calls:
- swapTokensForEth(contractTokenBalance) (#1032)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,owner(),block.timestamp) (#1056-1063)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#1103)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- Transfer(sender,recipient,tTransferAmount) (#1112)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- Transfer(sender,recipient,tTransferAmount) (#1121)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
- Transfer(sender,recipient,tTransferAmount) (#1131)
- _tokenTransfer(from,to,amount,takeFee) (#1044)
Reentrancy in DeAi.constructor() (#713-733):
External calls:
- pancakeswapV2Pair = IPancakeswapV2Factory(_pancakeswapV2Router.factory()).createPair(address(this),_pancakeswapV2Router.WETH()) (#720)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#732)
Reentrancy in DeAi.transferFrom(address,address,uint256) (#770-774):
External calls:
- _transfer(sender,recipient,amount) (#771)
- pancakeswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,owner(),block.timestamp) (#1056-1063)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#962)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#772)
Apply the check-effects-interactions pattern.

Additional information: link

DeAi.checkIDOCondition() (#882-889) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp > (launchAt + IDOUnlockTime) (#883)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#362-372) uses assembly
- INLINE ASM (#368-370)
Address.verifyCallResult(bool,bytes,string) (#531-551) uses assembly
- INLINE ASM (#543-546)
Do not use evm assembly.

Additional information: link

DeAi.includeInReward(address) (#829-840) has costly operations inside a loop:
- _excluded.pop() (#836)
Use a local variable to hold the loop computation result.

Additional information: link

Address.functionCall(address,bytes) (#415-417) is never used and should be removed
Address.functionCall(address,bytes,string) (#425-431) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#444-450) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#458-469) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#504-506) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#514-523) is never used and should be removed
Address.functionStaticCall(address,bytes) (#477-479) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#487-496) is never used and should be removed
Address.isContract(address) (#362-372) is never used and should be removed
Address.sendValue(address,uint256) (#390-395) is never used and should be removed
Address.verifyCallResult(bool,bytes,string) (#531-551) is never used and should be removed
Context._msgData() (#335-337) is never used and should be removed
DeAi.deliver(uint256) (#794-801) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#282-291) is never used and should be removed
SafeMath.mod(uint256,uint256) (#242-244) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#308-317) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#113-119) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#155-160) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#167-172) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#138-148) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#126-131) is never used and should be removed
Remove unused functions.

Additional information: link

DeAi._rTotal (#683) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
DeAi._previousTaxFee (#695) is set pre-construction with a non-constant function or state variable:
- _taxFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#390-395):
- (success) = recipient.call{value: amount}() (#393)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#458-469):
- (success,returndata) = target.call{value: value}(data) (#467)
Low level call in Address.functionStaticCall(address,bytes,string) (#487-496):
- (success,returndata) = target.staticcall(data) (#494)
Low level call in Address.functionDelegateCall(address,bytes,string) (#514-523):
- (success,returndata) = target.delegatecall(data) (#521)
Low level call in DeAi.transferContractValue(address) (#1071-1075):
- (success) = recipient.call{value: amount}() (#1073)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IPancakeswapV2Router01.WETH() (#629) is not in mixedCase
Parameter DeAi.calculateTaxFee(uint256)._amount (#935) is not in mixedCase
Variable DeAi.IDOEnabled (#690) is not in mixedCase
Variable DeAi.IDOThresholdAmount (#691) is not in mixedCase
Variable DeAi.IDOUnlockTime (#692) is not in mixedCase
Variable DeAi._taxFee (#694) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable DeAi._getRValues(uint256,uint256,uint256).rTransferAmount (#914) is too similar to DeAi._transferFromExcluded(address,address,uint256).tTransferAmount (#1116)
Variable DeAi._transferBothExcluded(address,address,uint256).rTransferAmount (#1125) is too similar to DeAi._getTValues(uint256).tTransferAmount (#907)
Variable DeAi._transferStandard(address,address,uint256).rTransferAmount (#1099) is too similar to DeAi._transferFromExcluded(address,address,uint256).tTransferAmount (#1116)
Variable DeAi._transferToExcluded(address,address,uint256).rTransferAmount (#1107) is too similar to DeAi._getTValues(uint256).tTransferAmount (#907)
Variable DeAi.reflectionFromToken(uint256,bool).rTransferAmount (#809) is too similar to DeAi._transferStandard(address,address,uint256).tTransferAmount (#1099)
Variable DeAi._transferBothExcluded(address,address,uint256).rTransferAmount (#1125) is too similar to DeAi._transferBothExcluded(address,address,uint256).tTransferAmount (#1125)
Variable DeAi._getValues(uint256).rTransferAmount (#901) is too similar to DeAi._getTValues(uint256).tTransferAmount (#907)
Variable DeAi.reflectionFromToken(uint256,bool).rTransferAmount (#809) is too similar to DeAi._getValues(uint256).tTransferAmount (#900)
Variable DeAi._transferBothExcluded(address,address,uint256).rTransferAmount (#1125) is too similar to DeAi._transferToExcluded(address,address,uint256).tTransferAmount (#1107)
Variable DeAi._transferFromExcluded(address,address,uint256).rTransferAmount (#1116) is too similar to DeAi._transferFromExcluded(address,address,uint256).tTransferAmount (#1116)
Variable DeAi._getRValues(uint256,uint256,uint256).rTransferAmount (#914) is too similar to DeAi._transferStandard(address,address,uint256).tTransferAmount (#1099)
Variable DeAi._transferToExcluded(address,address,uint256).rTransferAmount (#1107) is too similar to DeAi._transferToExcluded(address,address,uint256).tTransferAmount (#1107)
Variable DeAi.reflectionFromToken(uint256,bool).rTransferAmount (#809) is too similar to DeAi._getTValues(uint256).tTransferAmount (#907)
Variable DeAi._transferBothExcluded(address,address,uint256).rTransferAmount (#1125) is too similar to DeAi._transferFromExcluded(address,address,uint256).tTransferAmount (#1116)
Variable DeAi._transferStandard(address,address,uint256).rTransferAmount (#1099) is too similar to DeAi._transferStandard(address,address,uint256).tTransferAmount (#1099)
Variable DeAi._getValues(uint256).rTransferAmount (#901) is too similar to DeAi._transferToExcluded(address,address,uint256).tTransferAmount (#1107)
Variable DeAi._transferToExcluded(address,address,uint256).rTransferAmount (#1107) is too similar to DeAi._transferFromExcluded(address,address,uint256).tTransferAmount (#1116)
Variable DeAi.reflectionFromToken(uint256,bool).rTransferAmount (#809) is too similar to DeAi._transferBothExcluded(address,address,uint256).tTransferAmount (#1125)
Variable DeAi._getValues(uint256).rTransferAmount (#901) is too similar to DeAi._transferFromExcluded(address,address,uint256).tTransferAmount (#1116)
Variable DeAi._getRValues(uint256,uint256,uint256).rTransferAmount (#914) is too similar to DeAi._getTValues(uint256).tTransferAmount (#907)
Variable DeAi.reflectionFromToken(uint256,bool).rTransferAmount (#809) is too similar to DeAi._transferToExcluded(address,address,uint256).tTransferAmount (#1107)
Variable DeAi._transferStandard(address,address,uint256).rTransferAmount (#1099) is too similar to DeAi._getTValues(uint256).tTransferAmount (#907)
Variable DeAi.reflectionFromToken(uint256,bool).rTransferAmount (#809) is too similar to DeAi._transferFromExcluded(address,address,uint256).tTransferAmount (#1116)
Variable DeAi._transferBothExcluded(address,address,uint256).rTransferAmount (#1125) is too similar to DeAi._transferStandard(address,address,uint256).tTransferAmount (#1099)
Variable DeAi._transferBothExcluded(address,address,uint256).rTransferAmount (#1125) is too similar to DeAi._getValues(uint256).tTransferAmount (#900)
Variable DeAi._transferToExcluded(address,address,uint256).rTransferAmount (#1107) is too similar to DeAi._transferStandard(address,address,uint256).tTransferAmount (#1099)
Variable DeAi._getValues(uint256).rTransferAmount (#901) is too similar to DeAi._transferStandard(address,address,uint256).tTransferAmount (#1099)
Variable DeAi._transferFromExcluded(address,address,uint256).rTransferAmount (#1116) is too similar to DeAi._getTValues(uint256).tTransferAmount (#907)
Variable DeAi._transferStandard(address,address,uint256).rTransferAmount (#1099) is too similar to DeAi._transferBothExcluded(address,address,uint256).tTransferAmount (#1125)
Variable DeAi._getRValues(uint256,uint256,uint256).rTransferAmount (#914) is too similar to DeAi._transferToExcluded(address,address,uint256).tTransferAmount (#1107)
Variable DeAi._getRValues(uint256,uint256,uint256).rTransferAmount (#914) is too similar to DeAi._transferBothExcluded(address,address,uint256).tTransferAmount (#1125)
Variable DeAi._transferStandard(address,address,uint256).rTransferAmount (#1099) is too similar to DeAi._getValues(uint256).tTransferAmount (#900)
Variable DeAi._transferFromExcluded(address,address,uint256).rTransferAmount (#1116) is too similar to DeAi._transferStandard(address,address,uint256).tTransferAmount (#1099)
Variable DeAi._getRValues(uint256,uint256,uint256).rTransferAmount (#914) is too similar to DeAi._getValues(uint256).tTransferAmount (#900)
Variable DeAi._getValues(uint256).rTransferAmount (#901) is too similar to DeAi._transferBothExcluded(address,address,uint256).tTransferAmount (#1125)
Variable DeAi._transferToExcluded(address,address,uint256).rTransferAmount (#1107) is too similar to DeAi._transferBothExcluded(address,address,uint256).tTransferAmount (#1125)
Variable DeAi._transferFromExcluded(address,address,uint256).rTransferAmount (#1116) is too similar to DeAi._transferToExcluded(address,address,uint256).tTransferAmount (#1107)
Variable DeAi._transferFromExcluded(address,address,uint256).rTransferAmount (#1116) is too similar to DeAi._transferBothExcluded(address,address,uint256).tTransferAmount (#1125)
Variable DeAi._getValues(uint256).rTransferAmount (#901) is too similar to DeAi._getValues(uint256).tTransferAmount (#900)
Variable DeAi._transferToExcluded(address,address,uint256).rTransferAmount (#1107) is too similar to DeAi._getValues(uint256).tTransferAmount (#900)
Variable DeAi._transferFromExcluded(address,address,uint256).rTransferAmount (#1116) is too similar to DeAi._getValues(uint256).tTransferAmount (#900)
Variable DeAi._transferStandard(address,address,uint256).rTransferAmount (#1099) is too similar to DeAi._transferToExcluded(address,address,uint256).tTransferAmount (#1107)
Prevent variables from having similar names.

Additional information: link

DeAi.slitherConstructorVariables() (#664-1134) uses literals with too many digits:
- IDOThresholdAmount = 250000000 (#691)
DeAi.slitherConstructorVariables() (#664-1134) uses literals with too many digits:
- IDOUnlockTime = 18400000 (#692)
DeAi.slitherConstructorVariables() (#664-1134) uses literals with too many digits:
- _maxTxAmount = 50000000 * 10 ** 18 (#699)
DeAi.slitherConstructorVariables() (#664-1134) uses literals with too many digits:
- _maxTxAmountIDO = 5000000 * 10 ** 18 (#700)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DeAi.IDOThresholdAmount (#691) should be constant
DeAi.IDOUnlockTime (#692) should be constant
DeAi._decimals (#688) should be constant
DeAi._maxTxAmountIDO (#700) should be constant
DeAi._name (#686) should be constant
DeAi._symbol (#687) should be constant
DeAi._tTotal (#682) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#600-602)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#608-611)
name() should be declared external:
- DeAi.name() (#735-737)
symbol() should be declared external:
- DeAi.symbol() (#739-741)
decimals() should be declared external:
- DeAi.decimals() (#743-745)
totalSupply() should be declared external:
- DeAi.totalSupply() (#747-749)
transfer(address,uint256) should be declared external:
- DeAi.transfer(address,uint256) (#756-759)
allowance(address,address) should be declared external:
- DeAi.allowance(address,address) (#761-763)
approve(address,uint256) should be declared external:
- DeAi.approve(address,uint256) (#765-768)
transferFrom(address,address,uint256) should be declared external:
- DeAi.transferFrom(address,address,uint256) (#770-774)
increaseAllowance(address,uint256) should be declared external:
- DeAi.increaseAllowance(address,uint256) (#776-779)
decreaseAllowance(address,uint256) should be declared external:
- DeAi.decreaseAllowance(address,uint256) (#781-784)
isExcludedFromReward(address) should be declared external:
- DeAi.isExcludedFromReward(address) (#786-788)
totalFees() should be declared external:
- DeAi.totalFees() (#790-792)
reflectionFromToken(uint256,bool) should be declared external:
- DeAi.reflectionFromToken(uint256,bool) (#803-812)
excludeFromReward(address) should be declared external:
- DeAi.excludeFromReward(address) (#820-827)
excludeFromFee(address) should be declared external:
- DeAi.excludeFromFee(address) (#842-844)
includeInFee(address) should be declared external:
- DeAi.includeInFee(address) (#846-848)
isExcludedFromFee(address) should be declared external:
- DeAi.isExcludedFromFee(address) (#953-955)
Use the external attribute for functions never called from the contract.

Additional information: link

Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.

Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.

Unable to find website, listings and other project-related information

Young tokens have high risks of price dump / death

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank