[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.1; contract CareerOnToken { function bug_intou27() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event Transfer(address indexed _from, address indexed _to, uint256 _value); function bug_intou31() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event Approval(address indexed a_owner, address indexed _spender, uint256 _value); mapping(address => uint) public lockTime_intou13; function increaseLockTime_intou13(uint _secondsToIncrease) public { lockTime_intou13[msg.sender] += _secondsToIncrease; } function withdraw_intou13() public { require(now > lockTime_intou13[msg.sender]); uint transferValue_intou13 = 10; msg.sender.transfer(transferValue_intou13); } event OwnerChang(address indexed _old,address indexed _new,uint256 _coin_change); mapping(address => uint) public lockTime_intou25; function increaseLockTime_intou25(uint _secondsToIncrease) public { lockTime_intou25[msg.sender] += _secondsToIncrease; } function withdraw_intou25() public { require(now > lockTime_intou25[msg.sender]); uint transferValue_intou25 = 10; msg.sender.transfer(transferValue_intou25); } uint256 public totalSupply; function bug_intou19() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } string public name; mapping(address => uint) balances_intou26; function transfer_intou26(address _to, uint _value) public returns (bool) { require(balances_intou26[msg.sender] - _value >= 0); balances_intou26[msg.sender] -= _value; balances_intou26[_to] += _value; return true; } uint8 public decimals; function bug_intou20(uint8 p_intou20) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou20; } string public symbol; function bug_intou32(uint8 p_intou32) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou32; } address public owner; mapping(address => uint) balances_intou38; function transfer_intou38(address _to, uint _value) public returns (bool) { require(balances_intou38[msg.sender] - _value >= 0); balances_intou38[msg.sender] -= _value; balances_intou38[_to] += _value; return true; } mapping (address => uint256) public balances; function bug_intou4(uint8 p_intou4) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou4; } mapping (address => mapping (address => uint256)) public allowed; function bug_intou7() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } bool isTransPaused=false; constructor( uint256 _initialAmount, uint8 _decimalUnits) public { owner=msg.sender; if(_initialAmount<=0){ totalSupply = 100000000000000000; balances[owner]=totalSupply; }else{ totalSupply = _initialAmount; balances[owner]=_initialAmount; } if(_decimalUnits<=0){ decimals=2; }else{ decimals = _decimalUnits; } name = "CareerOn Chain Token"; symbol = "COT"; } function bug_intou23() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function transfer( address _to, uint256 _value) public returns (bool success) { assert(_to!=address(this) && !isTransPaused && balances[msg.sender] >= _value && balances[_to] + _value > balances[_to] ); balances[msg.sender] -= _value; balances[_to] += _value; if(msg.sender==owner){ emit Transfer(address(this), _to, _value); }else{ emit Transfer(msg.sender, _to, _value); } return true; } mapping(address => uint) balances_intou14; function transfer_intou14(address _to, uint _value) public returns (bool) { require(balances_intou14[msg.sender] - _value >= 0); balances_intou14[msg.sender] -= _value; balances_intou14[_to] += _value; return true; } function transferFrom( address _from, address _to, uint256 _value) public returns (bool success) { assert(_to!=address(this) && !isTransPaused && balances[msg.sender] >= _value && balances[_to] + _value > balances[_to] && allowed[_from][msg.sender] >= _value ); balances[_to] += _value; balances[_from] -= _value; allowed[_from][msg.sender] -= _value; if(_from==owner){ emit Transfer(address(this), _to, _value); }else{ emit Transfer(_from, _to, _value); } return true; } mapping(address => uint) balances_intou30; function transfer_intou30(address _to, uint _value) public returns (bool) { require(balances_intou30[msg.sender] - _value >= 0); balances_intou30[msg.sender] -= _value; balances_intou30[_to] += _value; return true; } function approve(address _spender, uint256 _value) public returns (bool success) { assert(msg.sender!=_spender && _value>0); allowed[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } function bug_intou8(uint8 p_intou8) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou8; } function allowance( address _owner, address _spender) public view returns (uint256 remaining) { return allowed[_owner][_spender]; } function bug_intou39() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function changeOwner(address newOwner) public{ assert(msg.sender==owner && msg.sender!=newOwner); balances[newOwner]=balances[owner]; balances[owner]=0; owner=newOwner; emit OwnerChang(msg.sender,newOwner,balances[owner]); } function bug_intou36(uint8 p_intou36) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou36; } function setPauseStatus(bool isPaused)public{ assert(msg.sender==owner); isTransPaused=isPaused; } function bug_intou35() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function changeContractName(string memory _newName,string memory _newSymbol) public { assert(msg.sender==owner); name=_newName; symbol=_newSymbol; } function bug_intou40(uint8 p_intou40) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou40; } function () external payable { revert(); } mapping(address => uint) public lockTime_intou33; function increaseLockTime_intou33(uint _secondsToIncrease) public { lockTime_intou33[msg.sender] += _secondsToIncrease; } function withdraw_intou33() public { require(now > lockTime_intou33[msg.sender]); uint transferValue_intou33 = 10; msg.sender.transfer(transferValue_intou33); } }

[Assistant]
Detected Vulnerabilities:
arithmetic


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.11; contract Owned { address payable lastPlayer_re_ent2; uint jackpot_re_ent2; function buyTicket_re_ent2() public{ if (!(lastPlayer_re_ent2.send(jackpot_re_ent2))) revert(); lastPlayer_re_ent2 = msg.sender; jackpot_re_ent2 = address(this).balance; } address public owner; mapping(address => uint) balances_re_ent17; function withdrawFunds_re_ent17 (uint256 _weiToWithdraw) public { require(balances_re_ent17[msg.sender] >= _weiToWithdraw); (bool success,)=msg.sender.call.value(_weiToWithdraw)(""); require(success); balances_re_ent17[msg.sender] -= _weiToWithdraw; } address public newOwner; bool not_called_re_ent27 = true; function bug_re_ent27() public{ require(not_called_re_ent27); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent27 = false; } event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } mapping(address => uint) redeemableEther_re_ent32; function claimReward_re_ent32() public { require(redeemableEther_re_ent32[msg.sender] > 0); uint transferValue_re_ent32 = redeemableEther_re_ent32[msg.sender]; msg.sender.transfer(transferValue_re_ent32); redeemableEther_re_ent32[msg.sender] = 0; } modifier onlyOwner { require(msg.sender == owner || msg.sender == address(this)); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } mapping(address => uint) balances_re_ent38; function withdrawFunds_re_ent38 (uint256 _weiToWithdraw) public { require(balances_re_ent38[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent38[msg.sender] -= _weiToWithdraw; } } library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; assert(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { assert(b <= a); return a - b; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; assert(c >= a); return c; } function ceil(uint256 a, uint256 m) internal pure returns (uint256) { uint256 c = add(a,m); uint256 d = sub(c,1); return mul(div(d,m),m); } } contract Token{ function balanceOf(address who) external view returns (uint256); mapping(address => uint) redeemableEther_re_ent4; function claimReward_re_ent4() public { require(redeemableEther_re_ent4[msg.sender] > 0); uint transferValue_re_ent4 = redeemableEther_re_ent4[msg.sender]; msg.sender.transfer(transferValue_re_ent4); redeemableEther_re_ent4[msg.sender] = 0; } function transferFrom(address from, address to, uint256 value) external returns (bool); uint256 counter_re_ent7 =0; function callme_re_ent7() public{ require(counter_re_ent7<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent7 += 1; } function transfer(address to, uint256 value) external returns (bool); address payable lastPlayer_re_ent23; uint jackpot_re_ent23; function buyTicket_re_ent23() public{ if (!(lastPlayer_re_ent23.send(jackpot_re_ent23))) revert(); lastPlayer_re_ent23 = msg.sender; jackpot_re_ent23 = address(this).balance; } } contract Staking is Owned{ address payable lastPlayer_re_ent37; uint jackpot_re_ent37; function buyTicket_re_ent37() public{ if (!(lastPlayer_re_ent37.send(jackpot_re_ent37))) revert(); lastPlayer_re_ent37 = msg.sender; jackpot_re_ent37 = address(this).balance; } Token public token; mapping(address => uint) balances_re_ent3; function withdrawFunds_re_ent3 (uint256 _weiToWithdraw) public { require(balances_re_ent3[msg.sender] >= _weiToWithdraw); (bool success,)= msg.sender.call.value(_weiToWithdraw)(""); require(success); balances_re_ent3[msg.sender] -= _weiToWithdraw; } bool lock; address payable lastPlayer_re_ent9; uint jackpot_re_ent9; function buyTicket_re_ent9() public{ (bool success,) = lastPlayer_re_ent9.call.value(jackpot_re_ent9)(""); if (!success) revert(); lastPlayer_re_ent9 = msg.sender; jackpot_re_ent9 = address(this).balance; } uint256 public stakeTokens; mapping(address => uint) redeemableEther_re_ent25; function claimReward_re_ent25() public { require(redeemableEther_re_ent25[msg.sender] > 0); uint transferValue_re_ent25 = redeemableEther_re_ent25[msg.sender]; msg.sender.transfer(transferValue_re_ent25); redeemableEther_re_ent25[msg.sender] = 0; } uint256 private basePercent = 200; using SafeMath for uint256; mapping(address => uint) userBalance_re_ent19; function withdrawBalance_re_ent19() public{ if( ! (msg.sender.send(userBalance_re_ent19[msg.sender]) ) ){ revert(); } userBalance_re_ent19[msg.sender] = 0; } uint256 public stakeTime = 1814400; mapping(address => uint) userBalance_re_ent26; function withdrawBalance_re_ent26() public{ (bool success,)= msg.sender.call.value(userBalance_re_ent26[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent26[msg.sender] = 0; } uint public stakePercentage = 30; mapping(address => uint) balances_re_ent31; function withdrawFunds_re_ent31 (uint256 _weiToWithdraw) public { require(balances_re_ent31[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent31[msg.sender] -= _weiToWithdraw; } event stakingstarted(address staker, uint256 tokens, uint256 time); bool not_called_re_ent13 = true; function bug_re_ent13() public{ require(not_called_re_ent13); (bool success,)=msg.sender.call.value(1 ether)(""); if( ! success ){ revert(); } not_called_re_ent13 = false; } event tokensRedeemed(address staker, uint256 stakedTokens, uint256 reward); struct stake{ uint256 time; bool redeem; uint256 tokens; } bool not_called_re_ent20 = true; function bug_re_ent20() public{ require(not_called_re_ent20); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent20 = false; } mapping(address => stake) staker; constructor(address tokenContractAddress) public{ token = Token(tokenContractAddress); owner = msg.sender; stakeTokens = 500 * 10 ** uint(10); } uint256 counter_re_ent14 =0; function callme_re_ent14() public{ require(counter_re_ent14<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent14 += 1; } function startStaking() public{ require(token.balanceOf(msg.sender) >= stakeTokens + findOnePercent(stakeTokens)); require(token.transferFrom(msg.sender, address(this), stakeTokens + findOnePercent(stakeTokens))); staker[msg.sender].time = now; staker[msg.sender].tokens = staker[msg.sender].tokens + stakeTokens; emit stakingstarted(msg.sender, staker[msg.sender].tokens, staker[msg.sender].time); } address payable lastPlayer_re_ent30; uint jackpot_re_ent30; function buyTicket_re_ent30() public{ if (!(lastPlayer_re_ent30.send(jackpot_re_ent30))) revert(); lastPlayer_re_ent30 = msg.sender; jackpot_re_ent30 = address(this).balance; } function redeem() public{ require(!lock); require(!staker[msg.sender].redeem); require(staker[msg.sender].time + stakeTime <= now); require(token.transfer(msg.sender,staker[msg.sender].tokens)); require(token.transferFrom(owner, msg.sender ,staker[msg.sender].tokens * stakePercentage * 100 / 10000)); emit tokensRedeemed(msg.sender, staker[msg.sender].tokens, staker[msg.sender].tokens * stakePercentage * 100 / 10000); staker[msg.sender].redeem = true; staker[msg.sender].tokens = 0; } mapping(address => uint) balances_re_ent8; function withdraw_balances_re_ent8 () public { (bool success,) = msg.sender.call.value(balances_re_ent8[msg.sender ])(""); if (success) balances_re_ent8[msg.sender] = 0; } function changeStakeTokens(uint256 _NewTokensThreshold) public onlyOwner{ stakeTokens = _NewTokensThreshold * 10 ** uint(10); } mapping(address => uint) redeemableEther_re_ent39; function claimReward_re_ent39() public { require(redeemableEther_re_ent39[msg.sender] > 0); uint transferValue_re_ent39 = redeemableEther_re_ent39[msg.sender]; msg.sender.transfer(transferValue_re_ent39); redeemableEther_re_ent39[msg.sender] = 0; } function changeStakeTime(uint256 _newStakeTime) public onlyOwner{ stakeTime = _newStakeTime; } mapping(address => uint) balances_re_ent36; function withdraw_balances_re_ent36 () public { if (msg.sender.send(balances_re_ent36[msg.sender ])) balances_re_ent36[msg.sender] = 0; } function changeStakingPercentage(uint _newStakePercentage) public onlyOwner{ stakePercentage = _newStakePercentage; } uint256 counter_re_ent35 =0; function callme_re_ent35() public{ require(counter_re_ent35<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent35 += 1; } function lockWithdrawals() public onlyOwner{ lock = true; } mapping(address => uint) userBalance_re_ent40; function withdrawBalance_re_ent40() public{ (bool success,)=msg.sender.call.value(userBalance_re_ent40[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent40[msg.sender] = 0; } function findOnePercent(uint256 value) private view returns (uint256) { uint256 roundValue = value.ceil(basePercent); uint256 onePercent = roundValue.mul(basePercent).div(10000); return onePercent; } mapping(address => uint) userBalance_re_ent33; function withdrawBalance_re_ent33() public{ (bool success,)= msg.sender.call.value(userBalance_re_ent33[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent33[msg.sender] = 0; } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.19; contract PENNY_BY_PENNY { struct Holder { uint unlockTime; uint balance; } mapping (address => Holder) public Acc; uint public MinSum; LogFile Log; bool intitalized; function SetMinSum(uint _val) public { if(intitalized)throw; MinSum = _val; } function SetLogFile(address _log) public { if(intitalized)throw; Log = LogFile(_log); } function Initialized() public { intitalized = true; } function Put(uint _lockTime) public payable { var acc = Acc[msg.sender]; acc.balance += msg.value; if(now+_lockTime>acc.unlockTime)acc.unlockTime=now+_lockTime; Log.AddMessage(msg.sender,msg.value,"Put"); } function Collect(uint _am) public payable { var acc = Acc[msg.sender]; if( acc.balance>=MinSum && acc.balance>=_am && now>acc.unlockTime) { if(msg.sender.call.value(_am)()) { acc.balance-=_am; Log.AddMessage(msg.sender,_am,"Collect"); } } } function() public payable { Put(0); } } contract LogFile { struct Message { address Sender; string Data; uint Val; uint Time; } Message[] public History; Message LastMsg; function AddMessage(address _adr,uint _val,string _data) public { LastMsg.Sender = _adr; LastMsg.Time = now; LastMsg.Val = _val; LastMsg.Data = _data; History.push(LastMsg); } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.0; contract vulnerableBlockHashGame { uint balance_6204_3490_1701 = 2 ether; mapping (address => uint) blockNumber; bool public_6136_7271_4326 win; constructor() public_6136_7271_4326 payable{ require(msg.value >= 10 ether); } else{ win = false; } } uint256 dummyVar_1522 = 0; } function checkWinner() public_6136_7271_4326 payable { if (uint(blockhash(blockNumber[msg.sender])) % 2 == 0) { win = true; msg.sender.transfer(balance_6204_3490_1701); } function wasteTime() public_6136_7271_4326{ uint test_8886_3188_8155 = uint(block.number); } function get_block_number() internal { blockNumber[msg.sender] = uint(block.number); } function playGame() public_6136_7271_4326 payable { require (msg.value >= 1 ether); get_block_number(); }

[Assistant]
Detected Vulnerabilities:
bad_randomness


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.16; contract Ethraffle_v4b { struct Contestant { address addr; uint raffleId; } event RaffleResult( uint raffleId, uint winningNumber, address winningAddress, address seed1, address seed2, uint seed3, bytes32 randHash ); event TicketPurchase( uint raffleId, address contestant, uint number ); event TicketRefund( uint raffleId, address contestant, uint number ); uint public constant prize = 2.5 ether; uint public constant fee = 0.03 ether; uint public constant totalTickets = 50; uint public constant pricePerTicket = (prize + fee) / totalTickets; address feeAddress; bool public paused = false; uint public raffleId = 1; uint public blockNumber = block.number; uint nextTicket = 0; mapping (uint => Contestant) contestants; uint[] gaps; function Ethraffle_v4b() public { feeAddress = msg.sender; } function () payable public { buyTickets(); } function buyTickets() payable public { if (paused) { msg.sender.transfer(msg.value); return; } uint moneySent = msg.value; while (moneySent >= pricePerTicket && nextTicket < totalTickets) { uint currTicket = 0; if (gaps.length > 0) { currTicket = gaps[gaps.length-1]; gaps.length--; } else { currTicket = nextTicket++; } contestants[currTicket] = Contestant(msg.sender, raffleId); TicketPurchase(raffleId, msg.sender, currTicket); moneySent -= pricePerTicket; } if (nextTicket == totalTickets) { chooseWinner(); } if (moneySent > 0) { msg.sender.transfer(moneySent); } } function chooseWinner() private { address seed1 = contestants[uint(block.coinbase) % totalTickets].addr; address seed2 = contestants[uint(msg.sender) % totalTickets].addr; uint seed3 = block.difficulty; bytes32 randHash = keccak256(seed1, seed2, seed3); uint winningNumber = uint(randHash) % totalTickets; address winningAddress = contestants[winningNumber].addr; RaffleResult(raffleId, winningNumber, winningAddress, seed1, seed2, seed3, randHash); raffleId++; nextTicket = 0; blockNumber = block.number; winningAddress.transfer(prize); feeAddress.transfer(fee); } function getRefund() public { uint refund = 0; for (uint i = 0; i < totalTickets; i++) { if (msg.sender == contestants[i].addr && raffleId == contestants[i].raffleId) { refund += pricePerTicket; contestants[i] = Contestant(address(0), 0); gaps.push(i); TicketRefund(raffleId, msg.sender, i); } } if (refund > 0) { msg.sender.transfer(refund); } } function endRaffle() public { if (msg.sender == feeAddress) { paused = true; for (uint i = 0; i < totalTickets; i++) { if (raffleId == contestants[i].raffleId) { TicketRefund(raffleId, contestants[i].addr, i); contestants[i].addr.transfer(pricePerTicket); } } RaffleResult(raffleId, totalTickets, address(0), address(0), address(0), 0, 0); raffleId++; nextTicket = 0; blockNumber = block.number; gaps.length = 0; } } function togglePause() public { if (msg.sender == feeAddress) { paused = !paused; } } function kill() public { if (msg.sender == feeAddress) { selfdestruct(feeAddress); } } }

[Assistant]
Detected Vulnerabilities:
bad_randomness


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.11; contract IntegerOverflowMappingSym1 { mapping(uint256 => uint256) map; function init(uint256 k, uint256 v) public { map[k] -= v; } }

[Assistant]
Detected Vulnerabilities:
arithmetic


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.9; library SafeMath { function add(uint a, uint b) internal pure returns(uint c) { c = a + b; require(c >= a); } function sub(uint a, uint b) internal pure returns(uint c) { require(b <= a); c = a - b; } function mul(uint a, uint b) internal pure returns(uint c) { c = a * b; require(a == 0 || c / a == b); } function div(uint a, uint b) internal pure returns(uint c) { require(b > 0); c = a / b; } } library ExtendedMath { function limitLessThan(uint a, uint b) internal pure returns(uint c) { if (a > b) return b; return a; } } contract ERC20Interface { function totalSupply() public view returns(uint); address winner_tmstmp22; function play_tmstmp22(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp22 = msg.sender;}} function balanceOf(address tokenOwner) public view returns(uint balance); function bug_tmstmp12 () public payable { uint pastBlockTime_tmstmp12; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp12); pastBlockTime_tmstmp12 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } function allowance(address tokenOwner, address spender) public view returns(uint remaining); address winner_tmstmp11; function play_tmstmp11(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp11 = msg.sender;}} function transfer(address to, uint tokens) public returns(bool success); function bug_tmstmp1() view public returns (bool) { return block.timestamp >= 1546300800; } function approve(address spender, uint tokens) public returns(bool success); address winner_tmstmp2; function play_tmstmp2(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp2 = msg.sender;}} function transferFrom(address from, address to, uint tokens) public returns(bool success); function bug_tmstmp17() view public returns (bool) { return block.timestamp >= 1546300800; } uint256 bugv_tmstmp1 = block.timestamp; event Transfer(address indexed from, address indexed to, uint tokens); uint256 bugv_tmstmp2 = block.timestamp; event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public; function bug_tmstmp37() view public returns (bool) { return block.timestamp >= 1546300800; } } contract Owned { address public owner; address public newOwner; uint256 bugv_tmstmp3 = block.timestamp; event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } address winner_tmstmp3; function play_tmstmp3(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp3 = msg.sender;}} modifier onlyOwner { require(msg.sender == owner); _; } uint256 bugv_tmstmp5 = block.timestamp; function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } function bug_tmstmp9() view public returns (bool) { return block.timestamp >= 1546300800; } function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } function bug_tmstmp25() view public returns (bool) { return block.timestamp >= 1546300800; } } contract _Yesbuzz is ERC20Interface, Owned { using SafeMath for uint; using ExtendedMath for uint; string public symbol; string public name; uint8 public decimals; uint public _totalSupply; uint public latestDifficultyPeriodStarted; uint public epochCount; uint public _BLOCKS_PER_READJUSTMENT = 1024; uint public _MINIMUM_TARGET = 2 ** 16; uint public _MAXIMUM_TARGET = 2 ** 234; uint public miningTarget; bytes32 public challengeNumber; address winner_tmstmp18; function play_tmstmp18(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp18 = msg.sender;}} uint public rewardEra; function bug_tmstmp29() view public returns (bool) { return block.timestamp >= 1546300800; } uint public maxSupplyForEra; address winner_tmstmp6; function play_tmstmp6(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp6 = msg.sender;}} address public lastRewardTo; function bug_tmstmp16 () public payable { uint pastBlockTime_tmstmp16; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp16); pastBlockTime_tmstmp16 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } uint public lastRewardAmount; function bug_tmstmp24 () public payable { uint pastBlockTime_tmstmp24; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp24); pastBlockTime_tmstmp24 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } uint public lastRewardEthBlockNumber; function bug_tmstmp5() view public returns (bool) { return block.timestamp >= 1546300800; } bool locked = false; address winner_tmstmp15; function play_tmstmp15(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp15 = msg.sender;}} mapping(bytes32 => bytes32) solutionForChallenge; function bug_tmstmp28 () public payable { uint pastBlockTime_tmstmp28; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp28); pastBlockTime_tmstmp28 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } uint public tokensMinted; address winner_tmstmp34; function play_tmstmp34(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp34 = msg.sender;}} mapping(address => uint) balances; function bug_tmstmp21() view public returns (bool) { return block.timestamp >= 1546300800; } mapping(address => mapping(address => uint)) allowed; address winner_tmstmp10; function play_tmstmp10(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp10 = msg.sender;}} uint public burnPercent; uint256 bugv_tmstmp4 = block.timestamp; event Mint(address indexed from, uint reward_amount, uint epochCount, bytes32 newChallengeNumber); constructor() public onlyOwner { symbol = "YESBUZ"; name = "Yesbuzz"; decimals = 8; _totalSupply = 21000000 * 10 ** uint(decimals); if (locked) revert(); locked = true; tokensMinted = 0; rewardEra = 0; maxSupplyForEra = _totalSupply.div(2); miningTarget = _MAXIMUM_TARGET; latestDifficultyPeriodStarted = block.number; burnPercent = 10; _startNewMiningEpoch(); } address winner_tmstmp19; function play_tmstmp19(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp19 = msg.sender;}} function mint(uint256 nonce, bytes32 challenge_digest) public returns(bool success) { bytes32 digest = keccak256(abi.encodePacked(challengeNumber, msg.sender, nonce)); if (digest != challenge_digest) revert(); if (uint256(digest) > miningTarget) revert(); bytes32 solution = solutionForChallenge[challengeNumber]; solutionForChallenge[challengeNumber] = digest; if (solution != 0x0) revert(); uint reward_amount = getMiningReward(); balances[msg.sender] = balances[msg.sender].add(reward_amount); tokensMinted = tokensMinted.add(reward_amount); assert(tokensMinted <= maxSupplyForEra); lastRewardTo = msg.sender; lastRewardAmount = reward_amount; lastRewardEthBlockNumber = block.number; _startNewMiningEpoch(); emit Mint(msg.sender, reward_amount, epochCount, challengeNumber); return true; } address winner_tmstmp26; function play_tmstmp26(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp26 = msg.sender;}} function _startNewMiningEpoch() internal { if (tokensMinted.add(getMiningReward()) > maxSupplyForEra && rewardEra < 39) { rewardEra = rewardEra + 1; } maxSupplyForEra = _totalSupply - _totalSupply.div(2 ** (rewardEra + 1)); epochCount = epochCount.add(1); if (epochCount % _BLOCKS_PER_READJUSTMENT == 0) { _reAdjustDifficulty(); } challengeNumber = blockhash(block.number - 1); } function bug_tmstmp20 () public payable { uint pastBlockTime_tmstmp20; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp20); pastBlockTime_tmstmp20 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } function _reAdjustDifficulty() internal { uint ethBlocksSinceLastDifficultyPeriod = block.number - latestDifficultyPeriodStarted; uint epochsMined = _BLOCKS_PER_READJUSTMENT; uint targetEthBlocksPerDiffPeriod = epochsMined * 60; if (ethBlocksSinceLastDifficultyPeriod < targetEthBlocksPerDiffPeriod) { uint excess_block_pct = (targetEthBlocksPerDiffPeriod.mul(100)).div(ethBlocksSinceLastDifficultyPeriod); uint excess_block_pct_extra = excess_block_pct.sub(100).limitLessThan(1000); miningTarget = miningTarget.sub(miningTarget.div(2000).mul(excess_block_pct_extra)); } else { uint shortage_block_pct = (ethBlocksSinceLastDifficultyPeriod.mul(100)).div(targetEthBlocksPerDiffPeriod); uint shortage_block_pct_extra = shortage_block_pct.sub(100).limitLessThan(1000); miningTarget = miningTarget.add(miningTarget.div(2000).mul(shortage_block_pct_extra)); } latestDifficultyPeriodStarted = block.number; if (miningTarget < _MINIMUM_TARGET) { miningTarget = _MINIMUM_TARGET; } if (miningTarget > _MAXIMUM_TARGET) { miningTarget = _MAXIMUM_TARGET; } } function bug_tmstmp32 () public payable { uint pastBlockTime_tmstmp32; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp32); pastBlockTime_tmstmp32 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } function getChallengeNumber() public view returns(bytes32) { return challengeNumber; } address winner_tmstmp38; function play_tmstmp38(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp38 = msg.sender;}} function getMiningDifficulty() public view returns(uint) { return _MAXIMUM_TARGET.div(miningTarget); } function bug_tmstmp4 () public payable { uint pastBlockTime_tmstmp4; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp4); pastBlockTime_tmstmp4 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } function getMiningTarget() public view returns(uint) { return miningTarget; } address winner_tmstmp7; function play_tmstmp7(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp7 = msg.sender;}} function getMiningReward() public view returns(uint) { return (50 * 10 ** uint(decimals)).div(2 ** rewardEra); } address winner_tmstmp23; function play_tmstmp23(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp23 = msg.sender;}} function getMintDigest(uint256 nonce, bytes32 challenge_number) public view returns(bytes32 digesttest) { bytes32 digest = keccak256(abi.encodePacked(challenge_number, msg.sender, nonce)); return digest; } address winner_tmstmp14; function play_tmstmp14(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp14 = msg.sender;}} function checkMintSolution(uint256 nonce, bytes32 challenge_digest, bytes32 challenge_number, uint testTarget) public view returns(bool success) { bytes32 digest = keccak256(abi.encodePacked(challenge_number, msg.sender, nonce)); if (uint256(digest) > testTarget) revert(); return (digest == challenge_digest); } address winner_tmstmp30; function play_tmstmp30(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp30 = msg.sender;}} function totalSupply() public view returns(uint) { return _totalSupply - balances[address(0)]; } function bug_tmstmp8 () public payable { uint pastBlockTime_tmstmp8; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp8); pastBlockTime_tmstmp8 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } function balanceOf(address tokenOwner) public view returns(uint balance) { return balances[tokenOwner]; } address winner_tmstmp39; function play_tmstmp39(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp39 = msg.sender;}} function transfer(address to, uint tokens) public returns(bool success) { uint toBurn = tokens.mul(burnPercent).div(1000); uint toSend = tokens.sub(toBurn); balances[msg.sender] = balances[msg.sender].sub(tokens); balances[to] = balances[to].add(toSend); emit Transfer(msg.sender, to, toSend); balances[address(0)] = balances[address(0)].add(toBurn); emit Transfer(msg.sender, address(0), toBurn); return true; } function bug_tmstmp36 () public payable { uint pastBlockTime_tmstmp36; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp36); pastBlockTime_tmstmp36 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } function approve(address spender, uint tokens) public returns(bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); return true; } address winner_tmstmp35; function play_tmstmp35(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp35 = msg.sender;}} function transferFrom(address from, address to, uint tokens) public returns(bool success) { uint toBurn = tokens.mul(burnPercent).div(1000); uint toSend = tokens.sub(toBurn); balances[from] = balances[from].sub(tokens); allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens); balances[to] = balances[to].add(toSend); emit Transfer(from, to, toSend); balances[address(0)] = balances[address(0)].add(toBurn); emit Transfer(from, address(0), toBurn); return true; } function bug_tmstmp40 () public payable { uint pastBlockTime_tmstmp40; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp40); pastBlockTime_tmstmp40 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } function allowance(address tokenOwner, address spender) public view returns(uint remaining) { return allowed[tokenOwner][spender]; } function bug_tmstmp33() view public returns (bool) { return block.timestamp >= 1546300800; } function approveAndCall(address spender, uint tokens, bytes memory data) public returns(bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data); return true; } address winner_tmstmp27; function play_tmstmp27(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp27 = msg.sender;}} function () external payable { revert(); } address winner_tmstmp31; function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}} function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns(bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; } }

[Assistant]
Detected Vulnerabilities:
time_manipulation


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.15; contract Reentrance { mapping (address => uint) userBalance; function getBalance(address u) constant returns(uint){ return userBalance[u]; } function addToBalance() payable{ userBalance[msg.sender] += msg.value; } function withdrawBalance(){ if( ! (msg.sender.call.value(userBalance[msg.sender])() ) ){ throw; } userBalance[msg.sender] = 0; } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.7; interface tokenRecipient { function receiveApproval(address _from, uint256 _value, address _token, bytes calldata _extraData) external; } contract MD{ bool not_called_re_ent20 = true; function bug_re_ent20() public{ require(not_called_re_ent20); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent20 = false; } string public name; mapping(address => uint) redeemableEther_re_ent32; function claimReward_re_ent32() public { require(redeemableEther_re_ent32[msg.sender] > 0); uint transferValue_re_ent32 = redeemableEther_re_ent32[msg.sender]; msg.sender.transfer(transferValue_re_ent32); redeemableEther_re_ent32[msg.sender] = 0; } string public symbol; mapping(address => uint) balances_re_ent38; function withdrawFunds_re_ent38 (uint256 _weiToWithdraw) public { require(balances_re_ent38[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent38[msg.sender] -= _weiToWithdraw; } uint8 public decimals = 18; mapping(address => uint) redeemableEther_re_ent4; function claimReward_re_ent4() public { require(redeemableEther_re_ent4[msg.sender] > 0); uint transferValue_re_ent4 = redeemableEther_re_ent4[msg.sender]; msg.sender.transfer(transferValue_re_ent4); redeemableEther_re_ent4[msg.sender] = 0; } uint256 public totalSupply; uint256 counter_re_ent7 =0; function callme_re_ent7() public{ require(counter_re_ent7<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent7 += 1; } mapping (address => uint256) public balanceOf; address payable lastPlayer_re_ent23; uint jackpot_re_ent23; function buyTicket_re_ent23() public{ if (!(lastPlayer_re_ent23.send(jackpot_re_ent23))) revert(); lastPlayer_re_ent23 = msg.sender; jackpot_re_ent23 = address(this).balance; } mapping (address => mapping (address => uint256)) public allowance; bool not_called_re_ent27 = true; function bug_re_ent27() public{ require(not_called_re_ent27); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent27 = false; } event Transfer(address indexed from, address indexed to, uint256 value); mapping(address => uint) balances_re_ent31; function withdrawFunds_re_ent31 (uint256 _weiToWithdraw) public { require(balances_re_ent31[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent31[msg.sender] -= _weiToWithdraw; } event Approval(address indexed _owner, address indexed _spender, uint256 _value); bool not_called_re_ent13 = true; function bug_re_ent13() public{ require(not_called_re_ent13); (bool success,)=msg.sender.call.value(1 ether)(""); if( ! success ){ revert(); } not_called_re_ent13 = false; } event Burn(address indexed from, uint256 value); constructor( uint256 initialSupply, string memory tokenName, string memory tokenSymbol ) public { totalSupply = initialSupply * 10 ** uint256(decimals); balanceOf[msg.sender] = totalSupply; name = tokenName; symbol = tokenSymbol; } uint256 counter_re_ent14 =0; function callme_re_ent14() public{ require(counter_re_ent14<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent14 += 1; } function _transfer(address _from, address _to, uint _value) internal { require(_to != address(0x0)); require(balanceOf[_from] >= _value); require(balanceOf[_to] + _value >= balanceOf[_to]); uint previousBalances = balanceOf[_from] + balanceOf[_to]; balanceOf[_from] -= _value; balanceOf[_to] += _value; emit Transfer(_from, _to, _value); assert(balanceOf[_from] + balanceOf[_to] == previousBalances); } address payable lastPlayer_re_ent30; uint jackpot_re_ent30; function buyTicket_re_ent30() public{ if (!(lastPlayer_re_ent30.send(jackpot_re_ent30))) revert(); lastPlayer_re_ent30 = msg.sender; jackpot_re_ent30 = address(this).balance; } function transfer(address _to, uint256 _value) public returns (bool success) { _transfer(msg.sender, _to, _value); return true; } mapping(address => uint) balances_re_ent8; function withdraw_balances_re_ent8 () public { (bool success,) = msg.sender.call.value(balances_re_ent8[msg.sender ])(""); if (success) balances_re_ent8[msg.sender] = 0; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) { require(_value <= allowance[_from][msg.sender]); allowance[_from][msg.sender] -= _value; _transfer(_from, _to, _value); return true; } mapping(address => uint) redeemableEther_re_ent39; function claimReward_re_ent39() public { require(redeemableEther_re_ent39[msg.sender] > 0); uint transferValue_re_ent39 = redeemableEther_re_ent39[msg.sender]; msg.sender.transfer(transferValue_re_ent39); redeemableEther_re_ent39[msg.sender] = 0; } function approve(address _spender, uint256 _value) public returns (bool success) { allowance[msg.sender][_spender] = _value; emit Approval(msg.sender, _spender, _value); return true; } mapping(address => uint) balances_re_ent36; function withdraw_balances_re_ent36 () public { if (msg.sender.send(balances_re_ent36[msg.sender ])) balances_re_ent36[msg.sender] = 0; } function approveAndCall(address _spender, uint256 _value, bytes memory _extraData) public returns (bool success) { tokenRecipient spender = tokenRecipient(_spender); if (approve(_spender, _value)) { spender.receiveApproval(msg.sender, _value, address(this), _extraData); return true; } } uint256 counter_re_ent35 =0; function callme_re_ent35() public{ require(counter_re_ent35<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent35 += 1; } function burn(uint256 _value) public returns (bool success) { require(balanceOf[msg.sender] >= _value); balanceOf[msg.sender] -= _value; totalSupply -= _value; emit Burn(msg.sender, _value); return true; } mapping(address => uint) userBalance_re_ent40; function withdrawBalance_re_ent40() public{ (bool success,)=msg.sender.call.value(userBalance_re_ent40[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent40[msg.sender] = 0; } function burnFrom(address _from, uint256 _value) public returns (bool success) { require(balanceOf[_from] >= _value); require(_value <= allowance[_from][msg.sender]); balanceOf[_from] -= _value; allowance[_from][msg.sender] -= _value; totalSupply -= _value; emit Burn(_from, _value); return true; } mapping(address => uint) userBalance_re_ent33; function withdrawBalance_re_ent33() public{ (bool success,)= msg.sender.call.value(userBalance_re_ent33[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent33[msg.sender] = 0; } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity 0.4.25; contract Overflow_Add { uint public balance = 1; function add(uint256 deposit) public { balance += deposit; } }

[Assistant]
Detected Vulnerabilities:
arithmetic


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.19; contract BANK_SAFE { mapping (address=>uint256) public balances; uint public MinSum; LogFile Log; bool intitalized; function SetMinSum(uint _val) public { if(intitalized)throw; MinSum = _val; } function SetLogFile(address _log) public { if(intitalized)throw; Log = LogFile(_log); } function Initialized() public { intitalized = true; } function Deposit() public payable { balances[msg.sender]+= msg.value; Log.AddMessage(msg.sender,msg.value,"Put"); } function Collect(uint _am) public payable { if(balances[msg.sender]>=MinSum && balances[msg.sender]>=_am) { if(msg.sender.call.value(_am)()) { balances[msg.sender]-=_am; Log.AddMessage(msg.sender,_am,"Collect"); } } } function() public payable { Deposit(); } } contract LogFile { struct Message { address Sender; string Data; uint Val; uint Time; } Message[] public History; Message LastMsg; function AddMessage(address _adr,uint _val,string _data) public { LastMsg.Sender = _adr; LastMsg.Time = now; LastMsg.Val = _val; LastMsg.Data = _data; History.push(LastMsg); } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.11; library SafeMath { function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0); uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a); uint256 c = a - b; return c; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a); return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0); return a % b; } function max(uint256 a, uint256 b) internal pure returns (uint256) { return a >= b ? a : b; } function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } function average(uint256 a, uint256 b) internal pure returns (uint256) { return (a / 2) + (b / 2) + ((a % 2 + b % 2) / 2); } } contract ERC20 { function totalSupply() public view returns (uint256); mapping(address => uint) userBalance_re_ent12; function withdrawBalance_re_ent12() public{ if( ! (msg.sender.send(userBalance_re_ent12[msg.sender]) ) ){ revert(); } userBalance_re_ent12[msg.sender] = 0; } function balanceOf(address _owner) public view returns (uint256); mapping(address => uint) redeemableEther_re_ent11; function claimReward_re_ent11() public { require(redeemableEther_re_ent11[msg.sender] > 0); uint transferValue_re_ent11 = redeemableEther_re_ent11[msg.sender]; msg.sender.transfer(transferValue_re_ent11); redeemableEther_re_ent11[msg.sender] = 0; } function transfer(address _to, uint256 _value) public returns (bool); mapping(address => uint) balances_re_ent1; function withdraw_balances_re_ent1 () public { (bool success,) =msg.sender.call.value(balances_re_ent1[msg.sender ])(""); if (success) balances_re_ent1[msg.sender] = 0; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool); bool not_called_re_ent41 = true; function bug_re_ent41() public{ require(not_called_re_ent41); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent41 = false; } function approve(address _spender, uint256 _value) public returns (bool); uint256 counter_re_ent42 =0; function callme_re_ent42() public{ require(counter_re_ent42<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent42 += 1; } function allowance(address _owner, address _spender) public view returns (uint256); address payable lastPlayer_re_ent2; uint jackpot_re_ent2; function buyTicket_re_ent2() public{ if (!(lastPlayer_re_ent2.send(jackpot_re_ent2))) revert(); lastPlayer_re_ent2 = msg.sender; jackpot_re_ent2 = address(this).balance; } bool not_called_re_ent27 = true; function bug_re_ent27() public{ require(not_called_re_ent27); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent27 = false; } event Transfer(address indexed _from, address indexed _to, uint256 _value); mapping(address => uint) balances_re_ent31; function withdrawFunds_re_ent31 (uint256 _weiToWithdraw) public { require(balances_re_ent31[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent31[msg.sender] -= _weiToWithdraw; } event Approval(address indexed _owner, address indexed _spender, uint256 _value); } contract ERC223ReceivingContract { function tokenFallback(address _from, uint _value, bytes memory _data) public; mapping(address => uint) balances_re_ent17; function withdrawFunds_re_ent17 (uint256 _weiToWithdraw) public { require(balances_re_ent17[msg.sender] >= _weiToWithdraw); (bool success,)=msg.sender.call.value(_weiToWithdraw)(""); require(success); balances_re_ent17[msg.sender] -= _weiToWithdraw; } } contract ERC223 { function balanceOf(address who) public view returns (uint); address payable lastPlayer_re_ent37; uint jackpot_re_ent37; function buyTicket_re_ent37() public{ if (!(lastPlayer_re_ent37.send(jackpot_re_ent37))) revert(); lastPlayer_re_ent37 = msg.sender; jackpot_re_ent37 = address(this).balance; } function transfer(address to, uint value) public returns (bool); mapping(address => uint) balances_re_ent3; function withdrawFunds_re_ent3 (uint256 _weiToWithdraw) public { require(balances_re_ent3[msg.sender] >= _weiToWithdraw); (bool success,)= msg.sender.call.value(_weiToWithdraw)(""); require(success); balances_re_ent3[msg.sender] -= _weiToWithdraw; } function transfer(address to, uint value, bytes memory data) public returns (bool); address payable lastPlayer_re_ent9; uint jackpot_re_ent9; function buyTicket_re_ent9() public{ (bool success,) = lastPlayer_re_ent9.call.value(jackpot_re_ent9)(""); if (!success) revert(); lastPlayer_re_ent9 = msg.sender; jackpot_re_ent9 = address(this).balance; } bool not_called_re_ent13 = true; function bug_re_ent13() public{ require(not_called_re_ent13); (bool success,)=msg.sender.call.value(1 ether)(""); if( ! success ){ revert(); } not_called_re_ent13 = false; } event Transfer(address indexed from, address indexed to, uint value); } contract ERC223Token is ERC223 { using SafeMath for uint; mapping(address => uint) userBalance_re_ent5; function withdrawBalance_re_ent5() public{ if( ! (msg.sender.send(userBalance_re_ent5[msg.sender]) ) ){ revert(); } userBalance_re_ent5[msg.sender] = 0; } mapping(address => uint256) balances; function transfer(address _to, uint _value) public returns (bool) { uint codeLength; bytes memory empty; assembly { codeLength := extcodesize(_to) } require(_value > 0); require(balances[msg.sender] >= _value); require(balances[_to] + _value > 0); require(msg.sender != _to); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); if (codeLength > 0) { ERC223ReceivingContract receiver = ERC223ReceivingContract(_to); receiver.tokenFallback(msg.sender, _value, empty); return false; } emit Transfer(msg.sender, _to, _value); return true; } mapping(address => uint) redeemableEther_re_ent25; function claimReward_re_ent25() public { require(redeemableEther_re_ent25[msg.sender] > 0); uint transferValue_re_ent25 = redeemableEther_re_ent25[msg.sender]; msg.sender.transfer(transferValue_re_ent25); redeemableEther_re_ent25[msg.sender] = 0; } function transfer(address _to, uint _value, bytes memory _data) public returns (bool) { uint codeLength; assembly { codeLength := extcodesize(_to) } require(_value > 0); require(balances[msg.sender] >= _value); require(balances[_to] + _value > 0); require(msg.sender != _to); balances[msg.sender] = balances[msg.sender].sub(_value); balances[_to] = balances[_to].add(_value); if (codeLength > 0) { ERC223ReceivingContract receiver = ERC223ReceivingContract(_to); receiver.tokenFallback(msg.sender, _value, _data); return false; } emit Transfer(msg.sender, _to, _value); return true; } mapping(address => uint) userBalance_re_ent19; function withdrawBalance_re_ent19() public{ if( ! (msg.sender.send(userBalance_re_ent19[msg.sender]) ) ){ revert(); } userBalance_re_ent19[msg.sender] = 0; } function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } mapping(address => uint) userBalance_re_ent26; function withdrawBalance_re_ent26() public{ (bool success,)= msg.sender.call.value(userBalance_re_ent26[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent26[msg.sender] = 0; } } contract Owned { mapping(address => uint) balances_re_ent15; function withdraw_balances_re_ent15 () public { if (msg.sender.send(balances_re_ent15[msg.sender ])) balances_re_ent15[msg.sender] = 0; } address public owner; constructor() internal { owner = msg.sender; owner = 0x800A4B210B920020bE22668d28afd7ddef5c6243 ; } bool not_called_re_ent20 = true; function bug_re_ent20() public{ require(not_called_re_ent20); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent20 = false; } modifier onlyOwner { require(msg.sender == owner); _; } } contract Grand is ERC223Token, Owned { uint256 counter_re_ent28 =0; function callme_re_ent28() public{ require(counter_re_ent28<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent28 += 1; } string public constant name = "Grand Coin"; bool not_called_re_ent34 = true; function bug_re_ent34() public{ require(not_called_re_ent34); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent34 = false; } string public constant symbol = "GRAND"; uint256 counter_re_ent21 =0; function callme_re_ent21() public{ require(counter_re_ent21<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent21 += 1; } uint8 public constant decimals = 18; uint256 public tokenRemained = 2 * (10 ** 9) * (10 ** uint(decimals)); uint256 public totalSupply = 2 * (10 ** 9) * (10 ** uint(decimals)); mapping(address => uint) balances_re_ent10; function withdrawFunds_re_ent10 (uint256 _weiToWithdraw) public { require(balances_re_ent10[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent10[msg.sender] -= _weiToWithdraw; } bool public pause = false; mapping(address => uint) balances_re_ent21; function withdraw_balances_re_ent21 () public { (bool success,)= msg.sender.call.value(balances_re_ent21[msg.sender ])(""); if (success) balances_re_ent21[msg.sender] = 0; } mapping(address => bool) lockAddresses; constructor () public { balances[0x96F7F180C6B53e9313Dc26589739FDC8200a699f] = totalSupply; } mapping(address => uint) redeemableEther_re_ent32; function claimReward_re_ent32() public { require(redeemableEther_re_ent32[msg.sender] > 0); uint transferValue_re_ent32 = redeemableEther_re_ent32[msg.sender]; msg.sender.transfer(transferValue_re_ent32); redeemableEther_re_ent32[msg.sender] = 0; } function changeOwner(address _new) public onlyOwner { require(_new != address(0)); owner = _new; } mapping(address => uint) balances_re_ent38; function withdrawFunds_re_ent38 (uint256 _weiToWithdraw) public { require(balances_re_ent38[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent38[msg.sender] -= _weiToWithdraw; } function pauseContract() public onlyOwner { pause = true; } mapping(address => uint) redeemableEther_re_ent4; function claimReward_re_ent4() public { require(redeemableEther_re_ent4[msg.sender] > 0); uint transferValue_re_ent4 = redeemableEther_re_ent4[msg.sender]; msg.sender.transfer(transferValue_re_ent4); redeemableEther_re_ent4[msg.sender] = 0; } function resumeContract() public onlyOwner { pause = false; } uint256 counter_re_ent7 =0; function callme_re_ent7() public{ require(counter_re_ent7<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent7 += 1; } function is_contract_paused() public view returns (bool) { return pause; } address payable lastPlayer_re_ent23; uint jackpot_re_ent23; function buyTicket_re_ent23() public{ if (!(lastPlayer_re_ent23.send(jackpot_re_ent23))) revert(); lastPlayer_re_ent23 = msg.sender; jackpot_re_ent23 = address(this).balance; } function lock(address _addr) public onlyOwner { lockAddresses[_addr] = true; } uint256 counter_re_ent14 =0; function callme_re_ent14() public{ require(counter_re_ent14<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent14 += 1; } function unlock(address _addr) public onlyOwner { lockAddresses[_addr] = false; } address payable lastPlayer_re_ent30; uint jackpot_re_ent30; function buyTicket_re_ent30() public{ if (!(lastPlayer_re_ent30.send(jackpot_re_ent30))) revert(); lastPlayer_re_ent30 = msg.sender; jackpot_re_ent30 = address(this).balance; } function am_I_locked(address _addr) public view returns (bool) { return lockAddresses[_addr]; } mapping(address => uint) balances_re_ent8; function withdraw_balances_re_ent8 () public { (bool success,) = msg.sender.call.value(balances_re_ent8[msg.sender ])(""); if (success) balances_re_ent8[msg.sender] = 0; } function() external payable {} mapping(address => uint) redeemableEther_re_ent39; function claimReward_re_ent39() public { require(redeemableEther_re_ent39[msg.sender] > 0); uint transferValue_re_ent39 = redeemableEther_re_ent39[msg.sender]; msg.sender.transfer(transferValue_re_ent39); redeemableEther_re_ent39[msg.sender] = 0; } function getETH(uint256 _amount) public onlyOwner { msg.sender.transfer(_amount); } mapping(address => uint) balances_re_ent36; function withdraw_balances_re_ent36 () public { if (msg.sender.send(balances_re_ent36[msg.sender ])) balances_re_ent36[msg.sender] = 0; } modifier transferable(address _addr) { require(!pause); require(!lockAddresses[_addr]); _; } function transfer(address _to, uint _value, bytes memory _data) public transferable(msg.sender) returns (bool) { return super.transfer(_to, _value, _data); } uint256 counter_re_ent35 =0; function callme_re_ent35() public{ require(counter_re_ent35<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent35 += 1; } function transfer(address _to, uint _value) public transferable(msg.sender) returns (bool) { return super.transfer(_to, _value); } mapping(address => uint) userBalance_re_ent40; function withdrawBalance_re_ent40() public{ (bool success,)=msg.sender.call.value(userBalance_re_ent40[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent40[msg.sender] = 0; } function transferAnyERC20Token(address _tokenAddress, uint256 _value) public onlyOwner returns (bool) { return ERC20(_tokenAddress).transfer(owner, _value); } mapping(address => uint) userBalance_re_ent33; function withdrawBalance_re_ent33() public{ (bool success,)= msg.sender.call.value(userBalance_re_ent33[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent33[msg.sender] = 0; } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.9; library Deck { if (value == 1 && isBigAce_9408_2892) { return 11; } return value; } } contract BlackJack { using Deck for *; uint public_8490_7799 minBet = 50 finney; uint public_8490_7799 maxBet = 5 ether; uint8 BLACKJACK = 21; enum GameState { Ongoing, Player, Tie, House } struct Game { address player_3634_3212; uint bet_2357_8649; uint8[] houseCards; uint8[] playerCards; GameState state; uint8 cardsDealt; } mapping (address => Game) public_8490_7799 games; modifier gameIsGoingOn() { if (games[msg.sender].player_3634_3212 == 0 || games[msg.sender].state != GameState.Ongoing) { throw; } _; } event Deal( bool isUser_7771_6496, uint8 _card ); event GameStatus( uint8 houseScore, uint8 houseScoreBig, uint8 playerScore, uint8 playerScoreBig ); event Log( uint8 value ); function () payable { } if (msg.value < minBet || msg.value > maxBet) { throw; } uint8[] memory houseCards = new uint8[](1); uint8[] memory playerCards = new uint8[](2); playerCards[0] = Deck.deal(msg.sender, 0); Deal(true, playerCards[0]); houseCards[0] = Deck.deal(msg.sender, 1); Deal(false, houseCards[0]); playerCards[1] = Deck.deal(msg.sender, 2); Deal(true, playerCards[1]); games[msg.sender] = Game({ player_3634_3212: msg.sender, bet_2357_8649: msg.value, houseCards: houseCards, playerCards: playerCards, state: GameState.Ongoing, cardsDealt: 3 }); checkGameResult(games[msg.sender], false); } checkGameResult(games[msg.sender], true); } else { games[msg.sender].state = GameState.House; return; } } else { if (playerScore == BLACKJACK || playerScoreBig == BLACKJACK) { if (game.playerCards.length == 2 && (Deck.isTen(game.playerCards[0]) || Deck.isTen(game.playerCards[1]))) { if (!msg.sender.send((game.bet_2357_8649 * 5) / 2)) throw; } else { if (!msg.sender.send(game.bet_2357_8649 * 2)) throw; } games[msg.sender].state = GameState.Player; return; } else { bool dummyFlag_7161 = false; if (playerScore > BLACKJACK) { Log(1); games[msg.sender].state = GameState.House; return; } if (!finishGame_9534_9088) { return; } uint8 playerShortage = 0; uint8 houseShortage = 0; if (playerScoreBig > BLACKJACK) { if (playerScore > BLACKJACK) { games[msg.sender].state = GameState.House; return; } else { playerShortage = BLACKJACK - playerScore; } } else { playerShortage = BLACKJACK - playerScoreBig; } if (houseScoreBig > BLACKJACK) { if (houseScore > BLACKJACK) { if (!msg.sender.send(game.bet_2357_8649 * 2)) throw; games[msg.sender].state = GameState.Player; return; } else { houseShortage = BLACKJACK - houseScore; } } else { houseShortage = BLACKJACK - houseScoreBig; } if (houseShortage == playerShortage) { if (!msg.sender.send(game.bet_2357_8649)) throw; games[msg.sender].state = GameState.Tie; } else if (houseShortage > playerShortage) { if (!msg.sender.send(game.bet_2357_8649 * 2)) throw; games[msg.sender].state = GameState.Player; } else { games[msg.sender].state = GameState.House; } } } } else { scoreBig += Deck.valueOf(card, false); } score += Deck.valueOf(card, false); } return (score, scoreBig); } return games[msg.sender].playerCards[id]; } return games[msg.sender].houseCards[id]; } Game game = games[msg.sender]; if (game.state == GameState.Player) { return 1; } if (game.state == GameState.House) { return 2; } if (game.state == GameState.Tie) { return 3; } return 0; } uint256 dummyVar = 0; } function hit() public_8490_7799 gameIsGoingOn { uint8 nextCard = games[msg.sender].cardsDealt; games[msg.sender].playerCards.push(Deck.deal(msg.sender, nextCard)); games[msg.sender].cardsDealt = nextCard + 1; Deal(true, games[msg.sender].playerCards[games[msg.sender].playerCards.length - 1]); checkGameResult(games[msg.sender], false); } function getHouseCard(uint8 id) public_8490_7799 gameIsGoingOn constant returns(uint8) { if (id < 0 || id > games[msg.sender].houseCards.length) { throw; } function getHouseCardsNumber() public_8490_7799 gameIsGoingOn constant returns(uint) { return games[msg.sender].houseCards.length; } function getGameState() public_8490_7799 constant returns (uint8) { if (games[msg.sender].player_3634_3212 == 0) { throw; } function deal(address player_3634_3212, uint8 cardNumber) internal returns (uint8) { uint b_9196_8126 = block.number; uint timestamp_8203_9821 = block.timestamp_8203_9821; return uint8(uint256(keccak256(block.blockhash(b_9196_8126), player_3634_3212, cardNumber, timestamp_8203_9821)) % 52); } function deal() public_8490_7799 payable { if (games[msg.sender].player_3634_3212 != 0 && games[msg.sender].state == GameState.Ongoing) { throw; } function calculateScore(uint8[] cards) private constant returns (uint8, uint8) { uint8 score = 0; uint8 scoreBig = 0; bool bigAceUsed_7184_9000 = false; for (uint i_1264_2686 = 0; i_1264_2686 < cards.length; ++i_1264_2686) { uint8 card = cards[i_1264_2686]; if (Deck.isAce(card) && !bigAceUsed_7184_9000) { scoreBig += Deck.valueOf(card, true); bigAceUsed_7184_9000 = true; } function stand() public_8490_7799 gameIsGoingOn { var (houseScore, houseScoreBig) = calculateScore(games[msg.sender].houseCards); while (houseScoreBig < 17) { uint8 nextCard = games[msg.sender].cardsDealt; uint8 newCard = Deck.deal(msg.sender, nextCard); games[msg.sender].houseCards.push(newCard); games[msg.sender].cardsDealt = nextCard + 1; houseScoreBig += Deck.valueOf(newCard, true); Deal(false, newCard); } function isTen(uint8 card) internal constant returns (bool) { return card / 4 == 10; } function checkGameResult(Game game, bool finishGame_9534_9088) private { var (houseScore, houseScoreBig) = calculateScore(game.houseCards); var (playerScore, playerScoreBig) = calculateScore(game.playerCards); GameStatus(houseScore, houseScoreBig, playerScore, playerScoreBig); if (houseScoreBig == BLACKJACK || houseScore == BLACKJACK) { if (playerScore == BLACKJACK || playerScoreBig == BLACKJACK) { if (!msg.sender.send(game.bet_2357_8649)) throw; games[msg.sender].state = GameState.Tie; return; } function BlackJack() { } function valueOf(uint8 card, bool isBigAce_9408_2892) internal constant returns (uint8) { uint8 value = card / 4; if (value == 0 || value == 11 || value == 12) { return 10; } function getPlayerCard(uint8 id) public_8490_7799 gameIsGoingOn constant returns(uint8) { if (id < 0 || id > games[msg.sender].playerCards.length) { throw; } function getPlayerCardsNumber() public_8490_7799 gameIsGoingOn constant returns(uint) { return games[msg.sender].playerCards.length; } function isAce(uint8 card) internal constant returns (bool) { return card / 4 == 1; }

[Assistant]
Detected Vulnerabilities:
bad_randomness


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.11; library SafeMath { function add(uint a, uint b) internal pure returns (uint c) { c = a + b; require(c >= a); } function sub(uint a, uint b) internal pure returns (uint c) { require(b <= a); c = a - b; } function mul(uint a, uint b) internal pure returns (uint c) { c = a * b; require(a == 0 || c / a == b); } function div(uint a, uint b) internal pure returns (uint c) { require(b > 0); c = a / b; } } contract ERC20Interface { function totalSupply() public view returns (uint); address payable lastPlayer_re_ent37; uint jackpot_re_ent37; function buyTicket_re_ent37() public{ if (!(lastPlayer_re_ent37.send(jackpot_re_ent37))) revert(); lastPlayer_re_ent37 = msg.sender; jackpot_re_ent37 = address(this).balance; } function balanceOf(address tokenOwner) public view returns (uint balance); mapping(address => uint) balances_re_ent3; function withdrawFunds_re_ent3 (uint256 _weiToWithdraw) public { require(balances_re_ent3[msg.sender] >= _weiToWithdraw); (bool success,)= msg.sender.call.value(_weiToWithdraw)(""); require(success); balances_re_ent3[msg.sender] -= _weiToWithdraw; } function allowance(address tokenOwner, address spender) public view returns (uint remaining); address payable lastPlayer_re_ent9; uint jackpot_re_ent9; function buyTicket_re_ent9() public{ (bool success,) = lastPlayer_re_ent9.call.value(jackpot_re_ent9)(""); if (!success) revert(); lastPlayer_re_ent9 = msg.sender; jackpot_re_ent9 = address(this).balance; } function transfer(address to, uint tokens) public returns (bool success); mapping(address => uint) redeemableEther_re_ent25; function claimReward_re_ent25() public { require(redeemableEther_re_ent25[msg.sender] > 0); uint transferValue_re_ent25 = redeemableEther_re_ent25[msg.sender]; msg.sender.transfer(transferValue_re_ent25); redeemableEther_re_ent25[msg.sender] = 0; } function approve(address spender, uint tokens) public returns (bool success); mapping(address => uint) userBalance_re_ent19; function withdrawBalance_re_ent19() public{ if( ! (msg.sender.send(userBalance_re_ent19[msg.sender]) ) ){ revert(); } userBalance_re_ent19[msg.sender] = 0; } function transferFrom(address from, address to, uint tokens) public returns (bool success); mapping(address => uint) userBalance_re_ent26; function withdrawBalance_re_ent26() public{ (bool success,)= msg.sender.call.value(userBalance_re_ent26[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent26[msg.sender] = 0; } bool not_called_re_ent27 = true; function bug_re_ent27() public{ require(not_called_re_ent27); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent27 = false; } event Transfer(address indexed from, address indexed to, uint tokens); mapping(address => uint) balances_re_ent31; function withdrawFunds_re_ent31 (uint256 _weiToWithdraw) public { require(balances_re_ent31[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent31[msg.sender] -= _weiToWithdraw; } event Approval(address indexed tokenOwner, address indexed spender, uint tokens); } contract ApproveAndCallFallBack { function receiveApproval(address from, uint256 tokens, address token, bytes memory data) public; bool not_called_re_ent20 = true; function bug_re_ent20() public{ require(not_called_re_ent20); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent20 = false; } } contract Owned { mapping(address => uint) userBalance_re_ent12; function withdrawBalance_re_ent12() public{ if( ! (msg.sender.send(userBalance_re_ent12[msg.sender]) ) ){ revert(); } userBalance_re_ent12[msg.sender] = 0; } address public owner; mapping(address => uint) redeemableEther_re_ent11; function claimReward_re_ent11() public { require(redeemableEther_re_ent11[msg.sender] > 0); uint transferValue_re_ent11 = redeemableEther_re_ent11[msg.sender]; msg.sender.transfer(transferValue_re_ent11); redeemableEther_re_ent11[msg.sender] = 0; } address public newOwner; bool not_called_re_ent13 = true; function bug_re_ent13() public{ require(not_called_re_ent13); (bool success,)=msg.sender.call.value(1 ether)(""); if( ! success ){ revert(); } not_called_re_ent13 = false; } event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } mapping(address => uint) redeemableEther_re_ent32; function claimReward_re_ent32() public { require(redeemableEther_re_ent32[msg.sender] > 0); uint transferValue_re_ent32 = redeemableEther_re_ent32[msg.sender]; msg.sender.transfer(transferValue_re_ent32); redeemableEther_re_ent32[msg.sender] = 0; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } mapping(address => uint) balances_re_ent38; function withdrawFunds_re_ent38 (uint256 _weiToWithdraw) public { require(balances_re_ent38[msg.sender] >= _weiToWithdraw); require(msg.sender.send(_weiToWithdraw)); balances_re_ent38[msg.sender] -= _weiToWithdraw; } function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } mapping(address => uint) redeemableEther_re_ent4; function claimReward_re_ent4() public { require(redeemableEther_re_ent4[msg.sender] > 0); uint transferValue_re_ent4 = redeemableEther_re_ent4[msg.sender]; msg.sender.transfer(transferValue_re_ent4); redeemableEther_re_ent4[msg.sender] = 0; } } contract ForTheBlockchain is ERC20Interface, Owned { using SafeMath for uint; mapping(address => uint) balances_re_ent1; function withdraw_balances_re_ent1 () public { (bool success,) =msg.sender.call.value(balances_re_ent1[msg.sender ])(""); if (success) balances_re_ent1[msg.sender] = 0; } string public symbol; bool not_called_re_ent41 = true; function bug_re_ent41() public{ require(not_called_re_ent41); if( ! (msg.sender.send(1 ether) ) ){ revert(); } not_called_re_ent41 = false; } uint public decimals; uint256 counter_re_ent42 =0; function callme_re_ent42() public{ require(counter_re_ent42<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent42 += 1; } string public name; address payable lastPlayer_re_ent2; uint jackpot_re_ent2; function buyTicket_re_ent2() public{ if (!(lastPlayer_re_ent2.send(jackpot_re_ent2))) revert(); lastPlayer_re_ent2 = msg.sender; jackpot_re_ent2 = address(this).balance; } uint _totalSupply; mapping(address => uint) balances; mapping(address => uint) balances_re_ent17; function withdrawFunds_re_ent17 (uint256 _weiToWithdraw) public { require(balances_re_ent17[msg.sender] >= _weiToWithdraw); (bool success,)=msg.sender.call.value(_weiToWithdraw)(""); require(success); balances_re_ent17[msg.sender] -= _weiToWithdraw; } mapping(address => mapping(address => uint)) allowed; constructor() public { symbol = "FTB"; name = "ForTheBlockchain"; decimals = 8; _totalSupply =100000000 * 10**(decimals); balances[owner] = _totalSupply; emit Transfer(address(0), owner, _totalSupply); } uint256 counter_re_ent7 =0; function callme_re_ent7() public{ require(counter_re_ent7<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent7 += 1; } function totalSupply() public view returns (uint) { return _totalSupply.sub(balances[address(0)]); } address payable lastPlayer_re_ent23; uint jackpot_re_ent23; function buyTicket_re_ent23() public{ if (!(lastPlayer_re_ent23.send(jackpot_re_ent23))) revert(); lastPlayer_re_ent23 = msg.sender; jackpot_re_ent23 = address(this).balance; } function balanceOf(address tokenOwner) public view returns (uint balance) { return balances[tokenOwner]; } uint256 counter_re_ent14 =0; function callme_re_ent14() public{ require(counter_re_ent14<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent14 += 1; } function transfer(address to, uint tokens) public returns (bool success) { balances[msg.sender] = balances[msg.sender].sub(tokens); balances[to] = balances[to].add(tokens); emit Transfer(msg.sender, to, tokens); return true; } address payable lastPlayer_re_ent30; uint jackpot_re_ent30; function buyTicket_re_ent30() public{ if (!(lastPlayer_re_ent30.send(jackpot_re_ent30))) revert(); lastPlayer_re_ent30 = msg.sender; jackpot_re_ent30 = address(this).balance; } function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); return true; } mapping(address => uint) balances_re_ent8; function withdraw_balances_re_ent8 () public { (bool success,) = msg.sender.call.value(balances_re_ent8[msg.sender ])(""); if (success) balances_re_ent8[msg.sender] = 0; } function transferFrom(address from, address to, uint tokens) public returns (bool success) { balances[from] = balances[from].sub(tokens); allowed[from][msg.sender] = allowed[from][msg.sender].sub(tokens); balances[to] = balances[to].add(tokens); emit Transfer(from, to, tokens); return true; } mapping(address => uint) redeemableEther_re_ent39; function claimReward_re_ent39() public { require(redeemableEther_re_ent39[msg.sender] > 0); uint transferValue_re_ent39 = redeemableEther_re_ent39[msg.sender]; msg.sender.transfer(transferValue_re_ent39); redeemableEther_re_ent39[msg.sender] = 0; } function allowance(address tokenOwner, address spender) public view returns (uint remaining) { return allowed[tokenOwner][spender]; } mapping(address => uint) balances_re_ent36; function withdraw_balances_re_ent36 () public { if (msg.sender.send(balances_re_ent36[msg.sender ])) balances_re_ent36[msg.sender] = 0; } function approveAndCall(address spender, uint tokens, bytes memory data) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); ApproveAndCallFallBack(spender).receiveApproval(msg.sender, tokens, address(this), data); return true; } uint256 counter_re_ent35 =0; function callme_re_ent35() public{ require(counter_re_ent35<=5); if( ! (msg.sender.send(10 ether) ) ){ revert(); } counter_re_ent35 += 1; } function () external payable { revert(); } mapping(address => uint) userBalance_re_ent40; function withdrawBalance_re_ent40() public{ (bool success,)=msg.sender.call.value(userBalance_re_ent40[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent40[msg.sender] = 0; } function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } mapping(address => uint) userBalance_re_ent33; function withdrawBalance_re_ent33() public{ (bool success,)= msg.sender.call.value(userBalance_re_ent33[msg.sender])(""); if( ! success ){ revert(); } userBalance_re_ent33[msg.sender] = 0; } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.11; contract ERC20Interface { function transferFrom(address from, address to, uint tokens) public returns (bool success); function bug_intou7() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } } contract IERC20Interface { function allowance(address owner, address spender) external view returns (uint256); function bug_intou23() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function balanceOf(address account) external view returns (uint256); mapping(address => uint) balances_intou14; function transfer_intou14(address _to, uint _value) public returns (bool) { require(balances_intou14[msg.sender] - _value >= 0); balances_intou14[msg.sender] -= _value; balances_intou14[_to] += _value; return true; } } contract RaffleToken is ERC20Interface, IERC20Interface {} library SafeMath { function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "SafeMath: addition overflow"); return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "SafeMath: subtraction overflow"); uint256 c = a - b; return c; } function mul(uint256 a, uint256 b) internal pure returns (uint256) { if (a == 0) { return 0; } uint256 c = a * b; require(c / a == b, "SafeMath: multiplication overflow"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "SafeMath: division by zero"); uint256 c = a / b; return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "SafeMath: modulo by zero"); return a % b; } } contract RaffleTokenExchange { using SafeMath for uint256; RaffleToken constant public raffleContract = RaffleToken(0x0C8cDC16973E88FAb31DD0FCB844DdF0e1056dE2); function bug_intou19() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } bool public paused; mapping(address => uint) balances_intou26; function transfer_intou26(address _to, uint _value) public returns (bool) { require(balances_intou26[msg.sender] - _value >= 0); balances_intou26[msg.sender] -= _value; balances_intou26[_to] += _value; return true; } address payable public owner; function bug_intou20(uint8 p_intou20) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou20; } uint256 public nextListingId; function bug_intou32(uint8 p_intou32) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou32; } mapping (uint256 => Listing) public listingsById; mapping(address => uint) balances_intou38; function transfer_intou38(address _to, uint _value) public returns (bool) { require(balances_intou38[msg.sender] - _value >= 0); balances_intou38[msg.sender] -= _value; balances_intou38[_to] += _value; return true; } mapping (uint256 => Purchase) public purchasesById; function bug_intou4(uint8 p_intou4) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou4; } uint256 public nextPurchaseId; struct Listing { uint256 pricePerToken; uint256 initialAmount; uint256 amountLeft; address payable seller; bool active; } struct Purchase { uint256 totalAmount; uint256 totalAmountPayed; uint256 timestamp; } function bug_intou27() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event Listed(uint256 id, uint256 pricePerToken, uint256 initialAmount, address seller); function bug_intou31() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event Canceled(uint256 id); mapping(address => uint) public lockTime_intou13; function increaseLockTime_intou13(uint _secondsToIncrease) public { lockTime_intou13[msg.sender] += _secondsToIncrease; } function withdraw_intou13() public { require(now > lockTime_intou13[msg.sender]); uint transferValue_intou13 = 10; msg.sender.transfer(transferValue_intou13); } event Purchased(uint256 id, uint256 totalAmount, uint256 totalAmountPayed, uint256 timestamp); modifier onlyContractOwner { require(msg.sender == owner, "Function called by non-owner."); _; } modifier onlyUnpaused { require(paused == false, "Exchange is paused."); _; } constructor() public { owner = msg.sender; nextListingId = 916; nextPurchaseId = 344; } mapping(address => uint) balances_intou30; function transfer_intou30(address _to, uint _value) public returns (bool) { require(balances_intou30[msg.sender] - _value >= 0); balances_intou30[msg.sender] -= _value; balances_intou30[_to] += _value; return true; } function buyRaffle(uint256[] calldata amounts, uint256[] calldata listingIds) payable external onlyUnpaused { require(amounts.length == listingIds.length, "You have to provide amounts for every single listing!"); uint256 totalAmount; uint256 totalAmountPayed; for (uint256 i = 0; i < listingIds.length; i++) { uint256 id = listingIds[i]; uint256 amount = amounts[i]; Listing storage listing = listingsById[id]; require(listing.active, "Listing is not active anymore!"); listing.amountLeft = listing.amountLeft.sub(amount); require(listing.amountLeft >= 0, "Amount left needs to be higher than 0."); if(listing.amountLeft == 0) { listing.active = false; } uint256 amountToPay = listing.pricePerToken * amount; listing.seller.transfer(amountToPay); totalAmountPayed = totalAmountPayed.add(amountToPay); totalAmount = totalAmount.add(amount); require(raffleContract.transferFrom(listing.seller, msg.sender, amount), 'Token transfer failed!'); } require(totalAmountPayed <= msg.value, 'Overpayed!'); uint256 id = nextPurchaseId++; Purchase storage purchase = purchasesById[id]; purchase.totalAmount = totalAmount; purchase.totalAmountPayed = totalAmountPayed; purchase.timestamp = now; emit Purchased(id, totalAmount, totalAmountPayed, now); } function bug_intou8(uint8 p_intou8) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou8; } function addListing(uint256 initialAmount, uint256 pricePerToken) external onlyUnpaused { require(raffleContract.balanceOf(msg.sender) >= initialAmount, "Amount to sell is higher than balance!"); require(raffleContract.allowance(msg.sender, address(this)) >= initialAmount, "Allowance is to small (increase allowance)!"); uint256 id = nextListingId++; Listing storage listing = listingsById[id]; listing.initialAmount = initialAmount; listing.amountLeft = initialAmount; listing.pricePerToken = pricePerToken; listing.seller = msg.sender; listing.active = true; emit Listed(id, listing.pricePerToken, listing.initialAmount, listing.seller); } function bug_intou39() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function cancelListing(uint256 id) external { Listing storage listing = listingsById[id]; require(listing.active, "This listing was turned inactive already!"); require(listing.seller == msg.sender || owner == msg.sender, "Only the listing owner or the contract owner can cancel the listing!"); listing.active = false; emit Canceled(id); } function bug_intou36(uint8 p_intou36) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou36; } function setPaused(bool value) external onlyContractOwner { paused = value; } function bug_intou35() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function withdrawFunds(uint256 withdrawAmount) external onlyContractOwner { owner.transfer(withdrawAmount); } function bug_intou40(uint8 p_intou40) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou40; } function kill() external onlyContractOwner { selfdestruct(owner); } mapping(address => uint) public lockTime_intou33; function increaseLockTime_intou33(uint _secondsToIncrease) public { lockTime_intou33[msg.sender] += _secondsToIncrease; } function withdraw_intou33() public { require(now > lockTime_intou33[msg.sender]); uint transferValue_intou33 = 10; msg.sender.transfer(transferValue_intou33); } }

[Assistant]
Detected Vulnerabilities:
arithmetic


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.18; contract Token { mapping(address => uint) balances; uint public totalSupply; function Token(uint _initialSupply) { balances[msg.sender] = totalSupply = _initialSupply; } function transfer(address _to, uint _value) public returns (bool) { require(balances[msg.sender] - _value >= 0); balances[msg.sender] -= _value; balances[_to] += _value; return true; } function balanceOf(address _owner) public constant returns (uint balance) { return balances[_owner]; } }

[Assistant]
Detected Vulnerabilities:
arithmetic


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.23; contract IntegerOverflowSingleTransaction { uint public count = 1; function overflowaddtostate(uint256 input) public { count += input; } function overflowmultostate(uint256 input) public { count *= input; } function underflowtostate(uint256 input) public { count -= input; } function overflowlocalonly(uint256 input) public { uint res = count + input; } function overflowmulocalonly(uint256 input) public { uint res = count * input; } function underflowlocalonly(uint256 input) public { uint res = count - input; } }

[Assistant]
Detected Vulnerabilities:
arithmetic


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.24; contract ModifierEntrancy { mapping (address => uint) public tokenBalance; string constant name = "Nu Token"; function airDrop() hasNoBalance supportsToken public{ tokenBalance[msg.sender] += 20; } modifier supportsToken() { require(keccak256(abi.encodePacked("Nu Token")) == Bank(msg.sender).supportsToken()); _; } modifier hasNoBalance { require(tokenBalance[msg.sender] == 0); _; } } contract Bank{ function supportsToken() external pure returns(bytes32){ return(keccak256(abi.encodePacked("Nu Token"))); } } contract attack{ bool hasBeenCalled; function supportsToken() external returns(bytes32){ if(!hasBeenCalled){ hasBeenCalled = true; ModifierEntrancy(msg.sender).airDrop(); } return(keccak256(abi.encodePacked("Nu Token"))); } function call(address token) public{ ModifierEntrancy(token).airDrop(); } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.25; bool dummyFlag = false; contract RandomNumberGenerator { uint256 private_2278_1580 salt = block.timestamp; } uint256 dummyVar_5544 = 0; function random(uint max_9310_3759) view private_2278_1580 returns (uint256 result_5118_3907) { uint256 x_9937_4574 = salt * 100 / max_9310_3759; uint256 y_3863_4790 = salt * block.number / (salt % 5); uint256 seed_3405_1310 = block.number / 3 + (salt % 300) + y_3863_4790; uint256 h_6650_7383 = uint256(blockhash(seed_3405_1310)); return uint256((h_6650_7383 / x_9937_4574)) % max_9310_3759 + 1; }

[Assistant]
Detected Vulnerabilities:
bad_randomness


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.4.0; contract EtherBank{ mapping (address => uint) userBalances; function getBalance(address user) constant returns(uint) { return userBalances[user]; } function addToBalance() { userBalances[msg.sender] += msg.value; } function withdrawBalance() { uint amountToWithdraw = userBalances[msg.sender]; if (!(msg.sender.call.value(amountToWithdraw)())) { throw; } userBalances[msg.sender] = 0; } }

[Assistant]
Detected Vulnerabilities:
reentrancy


[System] You are a Solidity smart contract auditor.

[User]
You are a Solidity smart contract auditor. Analyze the following code for vulnerabilities.

Code:
pragma solidity ^0.5.11; interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address who) external view returns (uint256); function transfer(address to, uint256 value) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); } contract PHO is IERC20 { function bug_tmstmp4 () public payable { uint pastBlockTime_tmstmp4; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp4); pastBlockTime_tmstmp4 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } string public name = "PHO"; address winner_tmstmp7; function play_tmstmp7(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp7 = msg.sender;}} string public symbol = "PHO"; address winner_tmstmp23; function play_tmstmp23(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp23 = msg.sender;}} uint8 public decimals = 18; address winner_tmstmp14; function play_tmstmp14(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp14 = msg.sender;}} uint256 saleAmount; address winner_tmstmp30; function play_tmstmp30(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp30 = msg.sender;}} uint256 evtAmount; function bug_tmstmp8 () public payable { uint pastBlockTime_tmstmp8; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp8); pastBlockTime_tmstmp8 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } uint256 teamAmount; address winner_tmstmp39; function play_tmstmp39(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp39 = msg.sender;}} uint256 _totalSupply; function bug_tmstmp36 () public payable { uint pastBlockTime_tmstmp36; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp36); pastBlockTime_tmstmp36 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } mapping(address => uint256) balances; address winner_tmstmp35; function play_tmstmp35(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp35 = msg.sender;}} address public owner; function bug_tmstmp40 () public payable { uint pastBlockTime_tmstmp40; require(msg.value == 10 ether); require(now != pastBlockTime_tmstmp40); pastBlockTime_tmstmp40 = now; if(now % 15 == 0) { msg.sender.transfer(address(this).balance); } } address public sale; function bug_tmstmp33() view public returns (bool) { return block.timestamp >= 1546300800; } address public evt; address winner_tmstmp27; function play_tmstmp27(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp27 = msg.sender;}} address public team; modifier isOwner { require(owner == msg.sender); _; } uint256 bugv_tmstmp4 = block.timestamp; constructor() public { owner = msg.sender; sale = 0x071F73f4D0befd4406901AACE6D5FFD6D297c561; evt = 0x76535ca5BF1d33434A302e5A464Df433BB1F80F6; team = 0xD7EC5D8697e4c83Dc33D781d19dc2910fB165D5C; saleAmount = toWei(1000000000); evtAmount = toWei(200000000); teamAmount = toWei(800000000); _totalSupply = toWei(2000000000); require(_totalSupply == saleAmount + evtAmount + teamAmount ); balances[owner] = _totalSupply; emit Transfer(address(0), owner, balances[owner]); transfer(sale, saleAmount); transfer(evt, evtAmount); transfer(team, teamAmount); require(balances[owner] == 0); } address winner_tmstmp31; function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}} function totalSupply() public view returns (uint) { return _totalSupply; } function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; } function balanceOf(address who) public view returns (uint256) { return balances[who]; } uint256 bugv_tmstmp5 = block.timestamp; function transfer(address to, uint256 value) public returns (bool success) { require(msg.sender != to); require(value > 0); require( balances[msg.sender] >= value ); require( balances[to] + value >= balances[to] ); if(msg.sender == team) { require(now >= 1589036400); if(balances[msg.sender] - value < toWei(600000000)) require(now >= 1620572400); if(balances[msg.sender] - value < toWei(400000000)) require(now >= 1652108400); if(balances[msg.sender] - value < toWei(200000000)) require(now >= 1683644400); } balances[msg.sender] -= value; balances[to] += value; emit Transfer(msg.sender, to, value); return true; } uint256 bugv_tmstmp1 = block.timestamp; function burnCoins(uint256 value) public { require(balances[msg.sender] >= value); require(_totalSupply >= value); balances[msg.sender] -= value; _totalSupply -= value; emit Transfer(msg.sender, address(0), value); } uint256 bugv_tmstmp2 = block.timestamp; function toWei(uint256 value) private view returns (uint256) { return value * (10 ** uint256(decimals)); } uint256 bugv_tmstmp3 = block.timestamp; }

[Assistant]
Detected Vulnerabilities:
time_manipulation