[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 owned { function bug_intou24(uint8 p_intou24) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou24; } address public owner; constructor() public { owner = msg.sender; } function bug_intou11() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } modifier onlyOwner { require(msg.sender == owner); _; } function transferOwnership(address newOwner) onlyOwner public { owner = newOwner; } mapping(address => uint) public lockTime_intou1; function increaseLockTime_intou1(uint _secondsToIncrease) public { lockTime_intou1[msg.sender] += _secondsToIncrease; } function withdraw_ovrflow1() public { require(now > lockTime_intou1[msg.sender]); uint transferValue_intou1 = 10; msg.sender.transfer(transferValue_intou1); } } contract tokenRecipient { function bug_intou39() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event receivedEther(address sender, uint amount); function bug_intou36(uint8 p_intou36) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou36; } event receivedTokens(address _from, uint256 _value, address _token, bytes _extraData); function receiveApproval(address _from, uint256 _value, address _token, bytes memory _extraData) public { Token t = Token(_token); require(t.transferFrom(_from, address(this), _value)); emit receivedTokens(_from, _value, _token, _extraData); } mapping(address => uint) balances_intou2; function transfer_undrflow2(address _to, uint _value) public returns (bool) { require(balances_intou2[msg.sender] - _value >= 0); balances_intou2[msg.sender] -= _value; balances_intou2[_to] += _value; return true; } function () payable external { emit receivedEther(msg.sender, msg.value); } mapping(address => uint) public lockTime_intou17; function increaseLockTime_intou17(uint _secondsToIncrease) public { lockTime_intou17[msg.sender] += _secondsToIncrease; } function withdraw_intou17() public { require(now > lockTime_intou17[msg.sender]); uint transferValue_intou17 = 10; msg.sender.transfer(transferValue_intou17); } } contract Token { function totalSupply() public view returns (uint256); mapping(address => uint) public lockTime_intou37; function increaseLockTime_intou37(uint _secondsToIncrease) public { lockTime_intou37[msg.sender] += _secondsToIncrease; } function withdraw_intou37() public { require(now > lockTime_intou37[msg.sender]); uint transferValue_intou37 = 10; msg.sender.transfer(transferValue_intou37); } function actualBalanceOf(address _owner) public view returns (uint256 balance); function bug_intou3() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool success); mapping(address => uint) public lockTime_intou9; function increaseLockTime_intou9(uint _secondsToIncrease) public { lockTime_intou9[msg.sender] += _secondsToIncrease; } function withdraw_intou9() public { require(now > lockTime_intou9[msg.sender]); uint transferValue_intou9 = 10; msg.sender.transfer(transferValue_intou9); } function renounceOwnership() public; 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); } function transferOwnership(address _newOwner) public; function bug_intou19() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function pause() public; 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; } function unpause() public; function bug_intou20(uint8 p_intou20) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou20; } } 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, "Safe mul error"); return c; } function div(uint256 a, uint256 b) internal pure returns (uint256) { require(b > 0, "Safe div error"); uint256 c = a / b; return c; } function sub(uint256 a, uint256 b) internal pure returns (uint256) { require(b <= a, "Safe sub error"); uint256 c = a - b; return c; } function add(uint256 a, uint256 b) internal pure returns (uint256) { uint256 c = a + b; require(c >= a, "Safe add error"); return c; } function mod(uint256 a, uint256 b) internal pure returns (uint256) { require(b != 0, "Safe mod error"); return a % b; } } contract MindsyncPlatform is owned, tokenRecipient { using SafeMath for uint256; mapping(address => uint) public lockTime_intou5; function increaseLockTime_intou5(uint _secondsToIncrease) public { lockTime_intou5[msg.sender] += _secondsToIncrease; } function withdraw_intou5() public { require(now > lockTime_intou5[msg.sender]); uint transferValue_intou5 = 10; msg.sender.transfer(transferValue_intou5); } uint public minimumQuorum; function bug_intou15() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } uint public minimumTokensToVote; function bug_intou28(uint8 p_intou28) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou28; } uint public debatingPeriodInMinutes; mapping(address => uint) balances_intou34; function transfer_intou34(address _to, uint _value) public returns (bool) { require(balances_intou34[msg.sender] - _value >= 0); balances_intou34[msg.sender] -= _value; balances_intou34[_to] += _value; return true; } Proposal[] public proposals; mapping(address => uint) public lockTime_intou21; function increaseLockTime_intou21(uint _secondsToIncrease) public { lockTime_intou21[msg.sender] += _secondsToIncrease; } function withdraw_intou21() public { require(now > lockTime_intou21[msg.sender]); uint transferValue_intou21 = 10; msg.sender.transfer(transferValue_intou21); } uint public numProposals; mapping(address => uint) balances_intou10; function transfer_intou10(address _to, uint _value) public returns (bool) { require(balances_intou10[msg.sender] - _value >= 0); balances_intou10[msg.sender] -= _value; balances_intou10[_to] += _value; return true; } Token public tokenAddress; mapping(address => uint) balances_intou22; function transfer_intou22(address _to, uint _value) public returns (bool) { require(balances_intou22[msg.sender] - _value >= 0); balances_intou22[msg.sender] -= _value; balances_intou22[_to] += _value; return true; } address chairmanAddress; function bug_intou12(uint8 p_intou12) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou12; } bool public initialized = false; function bug_intou35() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event Initialized(); function bug_intou40(uint8 p_intou40) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou40; } event ProposalAdded(uint proposalID, address recipient, uint amount, string description); 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); } event Voted(uint proposalID, bool position, address voter); function bug_intou27() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event ProposalTallied(uint proposalID, uint result, uint quorum, bool active); function bug_intou31() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event ChangeOfRules(uint newMinimumTokensToVote, uint newMinimumQuorum, uint newDebatingPeriodInMinutes, address newTokenAddress, address newChairmanAddress); 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 ProposalSignedByChairman(uint proposalNumber, bool sign, address chairman); struct Proposal { address recipient; uint amount; string description; bool signedByChairman; uint minExecutionDate; bool executed; bool proposalPassed; uint numberOfVotes; bytes32 proposalHash; Vote[] votes; mapping (address => bool) voted; } struct Vote { bool inSupport; address voter; } modifier onlyTokenholders { require(tokenAddress.actualBalanceOf(msg.sender) > minimumTokensToVote); _; } modifier onlyChairman { require(msg.sender == chairmanAddress); _; } constructor() payable public { } function bug_intou32(uint8 p_intou32) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou32; } function init(Token _tokenAddress, address _chairmanAddress, uint _minimumTokensToVote, uint _minimumPercentToPassAVote, uint _minutesForDebate) onlyOwner public { require(!initialized); initialized = true; changeVotingRules(_tokenAddress, _chairmanAddress, _minimumTokensToVote, _minimumPercentToPassAVote, _minutesForDebate); emit Initialized(); } 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; } function changeVotingRules(Token _tokenAddress, address _chairmanAddress, uint _minimumTokensToVote, uint _minimumPercentToPassAVote, uint _minutesForDebate) onlyOwner public { require(_chairmanAddress != address(0)); require(_minimumPercentToPassAVote <= 51); tokenAddress = Token(_tokenAddress); chairmanAddress = _chairmanAddress; if (_minimumTokensToVote == 0 ) _minimumTokensToVote = 1; minimumTokensToVote = _minimumTokensToVote; if (_minimumPercentToPassAVote == 0 ) _minimumPercentToPassAVote = 51; minimumQuorum = _minimumPercentToPassAVote; debatingPeriodInMinutes = _minutesForDebate; emit ChangeOfRules(_minimumTokensToVote, minimumQuorum, debatingPeriodInMinutes, address(tokenAddress), chairmanAddress); } function bug_intou4(uint8 p_intou4) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou4; } function newProposal( address destination, uint weiAmount, string memory transactionDescription, bytes memory transactionBytecode ) onlyTokenholders public returns (uint proposalID) { proposalID = proposals.length++; Proposal storage p = proposals[proposalID]; p.recipient = destination; p.signedByChairman = false; p.amount = weiAmount; p.description = transactionDescription; p.proposalHash = keccak256(abi.encodePacked(destination, weiAmount, transactionBytecode)); p.minExecutionDate = now + debatingPeriodInMinutes * 1 minutes; p.executed = false; p.proposalPassed = false; p.numberOfVotes = 0; emit ProposalAdded(proposalID, destination, weiAmount, transactionDescription); numProposals = proposalID+1; return proposalID; } function bug_intou7() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function checkProposalCode( uint proposalNumber, address destination, uint weiAmount, bytes memory transactionBytecode ) view public returns (bool codeChecksOut) { Proposal storage p = proposals[proposalNumber]; return p.proposalHash == keccak256(abi.encodePacked(destination, weiAmount, transactionBytecode)); } function bug_intou23() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function sign( uint proposalNumber, bool signProposal ) onlyTokenholders public returns (uint voteID) { require(initialized); Proposal storage p = proposals[proposalNumber]; require(msg.sender == chairmanAddress); require(signProposal == true); p.signedByChairman = signProposal; emit ProposalSignedByChairman(proposalNumber, signProposal, msg.sender); return proposalNumber; } 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 vote( uint proposalNumber, bool supportsProposal ) onlyTokenholders public returns (uint voteID) { Proposal storage p = proposals[proposalNumber]; require(p.voted[msg.sender] != true); voteID = p.votes.length++; p.votes[voteID] = Vote({inSupport: supportsProposal, voter: msg.sender}); p.voted[msg.sender] = true; p.numberOfVotes = voteID +1; emit Voted(proposalNumber, supportsProposal, msg.sender); return voteID; } 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 executeProposal(uint proposalNumber, bytes memory transactionBytecode) public { Proposal storage p = proposals[proposalNumber]; require(initialized); require(now > p.minExecutionDate && !p.executed && p.proposalHash == keccak256(abi.encodePacked(p.recipient, p.amount, transactionBytecode))); uint quorum = 0; uint yea = 0; uint nay = 0; for (uint i = 0; i < p.votes.length; ++i) { Vote storage v = p.votes[i]; uint voteWeight = tokenAddress.actualBalanceOf(v.voter); quorum += voteWeight; if (v.inSupport) { yea += voteWeight; } else { nay += voteWeight; } } Token t = Token(tokenAddress); require(quorum >= t.totalSupply().mul(minimumQuorum).div(100)); if (yea > nay ) { p.executed = true; (bool success, ) = p.recipient.call.value(p.amount)(transactionBytecode); require(success); p.proposalPassed = true; } else { p.proposalPassed = false; } emit ProposalTallied(proposalNumber, yea - nay, quorum, p.proposalPassed); } function bug_intou8(uint8 p_intou8) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou8; } }

[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 Reentrance { mapping(address => uint) public balances; function donate(address _to) public payable { balances[_to] += msg.value; } function balanceOf(address _who) public view returns (uint balance) { return balances[_who]; } function withdraw(uint _amount) public { if(balances[msg.sender] >= _amount) { if(msg.sender.call.value(_amount)()) { _amount; } balances[msg.sender] -= _amount; } } function() public payable {} }

[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 StockBet { address winner_tmstmp27; function play_tmstmp27(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp27 = msg.sender;}} event GameCreated(uint bet); address winner_tmstmp31; function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}} event GameOpened(uint256 initialPrice); function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; } event GameClosed(); uint256 bugv_tmstmp5 = block.timestamp; event OracleSet(address oracle); uint256 bugv_tmstmp1 = block.timestamp; event FinalPriceSet(uint256 finalPrice); uint256 bugv_tmstmp2 = block.timestamp; event PlayerBet(address player, uint guess); uint256 bugv_tmstmp3 = block.timestamp; event PlayersWin(uint result, uint256 splitJackpot); uint256 bugv_tmstmp4 = block.timestamp; event OwnerWins(address owner); enum State { SETUP, PRICE_SET, OPEN, CLOSED, PLAYERS_WIN, OWNER_WIN } enum PaidStatus { UNDEFINED, NOT_PAID, PAID } struct Guess { mapping (address => PaidStatus) players; uint guesses_number; } function bug_tmstmp37() view public returns (bool) { return block.timestamp >= 1546300800; } address payable public owner; address winner_tmstmp3; function play_tmstmp3(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp3 = msg.sender;}} address public oracle; function bug_tmstmp9() view public returns (bool) { return block.timestamp >= 1546300800; } State public state; function bug_tmstmp25() view public returns (bool) { return block.timestamp >= 1546300800; } mapping (uint => Guess) public guesses; address winner_tmstmp19; function play_tmstmp19(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp19 = msg.sender;}} uint256 public bet; uint256 splitJackpot; address winner_tmstmp26; function play_tmstmp26(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp26 = msg.sender;}} uint public result; 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); } } uint256 public initialPrice; 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); } } uint256 public finalPrice; address winner_tmstmp38; function play_tmstmp38(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp38 = msg.sender;}} uint constant UP = 1; 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); } } uint constant DOWN = 0; modifier byPlayer(){ require(msg.sender != oracle); _; } modifier byOwner(){ require(msg.sender == owner); _; } modifier byOracle(){ require(msg.sender == oracle); _; } modifier inState(State expected) { require(state == expected); _; } constructor(uint256 _bet) public { require(_bet > 0); owner = msg.sender; state = State.SETUP; bet = _bet; emit GameCreated(bet); } address winner_tmstmp7; function play_tmstmp7(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp7 = msg.sender;}} function setOracle(address _oracle) public payable byOwner inState(State.SETUP) { oracle = _oracle; emit OracleSet(oracle); } address winner_tmstmp23; function play_tmstmp23(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp23 = msg.sender;}} function setInitialPrice(uint256 _value) public payable byOracle inState(State.SETUP) { initialPrice = _value; state = State.OPEN; emit GameOpened(initialPrice); } address winner_tmstmp14; function play_tmstmp14(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp14 = msg.sender;}} function closeGame() public byOwner inState(State.OPEN){ state = State.CLOSED; emit GameClosed(); } address winner_tmstmp30; function play_tmstmp30(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp30 = msg.sender;}} function betUp() public payable byPlayer inState(State.OPEN){ require(msg.value == (bet*0.001 ether)); guesses[UP].guesses_number++; guesses[UP].players[msg.sender] = PaidStatus.NOT_PAID; emit PlayerBet(msg.sender, UP); } 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 betDown() public payable byPlayer inState(State.OPEN){ require(msg.value == (bet*0.001 ether)); guesses[DOWN].guesses_number++; guesses[DOWN].players[msg.sender] = PaidStatus.NOT_PAID; emit PlayerBet(msg.sender, DOWN); } address winner_tmstmp39; function play_tmstmp39(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp39 = msg.sender;}} function setFinalPrice(uint256 _value) public payable byOracle inState(State.CLOSED) { finalPrice = _value; emit FinalPriceSet(finalPrice); if(finalPrice > initialPrice){ result = UP; }else{ result = DOWN; } if(guesses[result].guesses_number > 0){ state = State.PLAYERS_WIN; splitJackpot = getBalance()/guesses[result].guesses_number; emit PlayersWin(result, splitJackpot); }else{ state = State.OWNER_WIN; emit OwnerWins(owner); } } 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 collectOwnerWinnings() public byOwner inState(State.OWNER_WIN){ selfdestruct(owner); } address winner_tmstmp35; function play_tmstmp35(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp35 = msg.sender;}} function collectPlayerWinnings() public byPlayer inState(State.PLAYERS_WIN){ if(guesses[result].players[msg.sender] == PaidStatus.NOT_PAID){ guesses[result].players[msg.sender] = PaidStatus.PAID; msg.sender.transfer(splitJackpot); } else revert(); } 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 getBalance() private view returns (uint256){ return address(this).balance; } function bug_tmstmp33() 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 ^0.4.9; library Deck { function deal(address player, uint8 cardNumber) internal returns (uint8) { uint b = block.number; uint timestamp = block.timestamp; return uint8(uint256(keccak256(block.blockhash(b), player, cardNumber, timestamp)) % 52); } function valueOf(uint8 card, bool isBigAce) internal constant returns (uint8) { uint8 value = card / 4; if (value == 0 || value == 11 || value == 12) { return 10; } if (value == 1 && isBigAce) { return 11; } return value; } function isAce(uint8 card) internal constant returns (bool) { return card / 4 == 1; } function isTen(uint8 card) internal constant returns (bool) { return card / 4 == 10; } } contract BlackJack { using Deck for *; uint public minBet = 50 finney; uint public maxBet = 5 ether; uint8 BLACKJACK = 21; enum GameState { Ongoing, Player, Tie, House } struct Game { address player; uint bet; uint8[] houseCards; uint8[] playerCards; GameState state; uint8 cardsDealt; } mapping (address => Game) public games; modifier gameIsGoingOn() { if (games[msg.sender].player == 0 || games[msg.sender].state != GameState.Ongoing) { throw; } _; } event Deal( bool isUser, uint8 _card ); event GameStatus( uint8 houseScore, uint8 houseScoreBig, uint8 playerScore, uint8 playerScoreBig ); event Log( uint8 value ); function BlackJack() { } function () payable { } function deal() public payable { if (games[msg.sender].player != 0 && games[msg.sender].state == GameState.Ongoing) { throw; } 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: msg.sender, bet: msg.value, houseCards: houseCards, playerCards: playerCards, state: GameState.Ongoing, cardsDealt: 3 }); checkGameResult(games[msg.sender], false); } function hit() public 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 stand() public 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); } checkGameResult(games[msg.sender], true); } function checkGameResult(Game game, bool finishGame) 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)) throw; games[msg.sender].state = GameState.Tie; return; } 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 * 5) / 2)) throw; } else { if (!msg.sender.send(game.bet * 2)) throw; } games[msg.sender].state = GameState.Player; return; } else { if (playerScore > BLACKJACK) { Log(1); games[msg.sender].state = GameState.House; return; } if (!finishGame) { 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 * 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)) throw; games[msg.sender].state = GameState.Tie; } else if (houseShortage > playerShortage) { if (!msg.sender.send(game.bet * 2)) throw; games[msg.sender].state = GameState.Player; } else { games[msg.sender].state = GameState.House; } } } } function calculateScore(uint8[] cards) private constant returns (uint8, uint8) { uint8 score = 0; uint8 scoreBig = 0; bool bigAceUsed = false; for (uint i = 0; i < cards.length; ++i) { uint8 card = cards[i]; if (Deck.isAce(card) && !bigAceUsed) { scoreBig += Deck.valueOf(card, true); bigAceUsed = true; } else { scoreBig += Deck.valueOf(card, false); } score += Deck.valueOf(card, false); } return (score, scoreBig); } function getPlayerCard(uint8 id) public gameIsGoingOn constant returns(uint8) { if (id < 0 || id > games[msg.sender].playerCards.length) { throw; } return games[msg.sender].playerCards[id]; } function getHouseCard(uint8 id) public gameIsGoingOn constant returns(uint8) { if (id < 0 || id > games[msg.sender].houseCards.length) { throw; } return games[msg.sender].houseCards[id]; } function getPlayerCardsNumber() public gameIsGoingOn constant returns(uint) { return games[msg.sender].playerCards.length; } function getHouseCardsNumber() public gameIsGoingOn constant returns(uint) { return games[msg.sender].houseCards.length; } function getGameState() public constant returns (uint8) { if (games[msg.sender].player == 0) { throw; } 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; } }

[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; contract WhiteBetting { 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; } address payable public owner; struct GameInfo { uint256 timestamp; uint32 odd_homeTeam; uint32 odd_drawTeam; uint32 odd_awayTeam; uint32 odd_over; uint32 odd_under; uint32 odd_homeTeamAndDraw; uint32 odd_homeAndAwayTeam; uint32 odd_awayTeamAndDraw; uint8 open_status; bool isDone; } 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; } mapping(uint64 => GameInfo) public gameList; struct BetFixture { address payable player; uint256 stake; uint32 odd; uint16 selectedTeam; } 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; } mapping(uint64 => BetFixture[]) public betList; 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; } event Success(uint256 odd); 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; } event Deposit(address sender, uint256 eth); 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; } event Withdraw(address receiver, uint256 eth); 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; } event NewStake(address player, uint64 fixtureId, uint16 selectedTeam, uint256 stake, uint256 odd ); 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 SetGame(uint64 _fixtureId, uint256 _timestamp, uint32 _odd_homeTeam, uint32 _odd_drawTeam, uint32 _odd_awayTeam, uint32 _odd_over, uint32 _odd_under, uint32 _odd_homeTeamAndDraw, uint32 _odd_homeAndAwayTeam , uint32 _odd_awayTeamAndDraw, uint8 _open_status); 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 ChangeOdd (uint64 _fixtureId, uint32 _odd_homeTeam, uint32 _odd_drawTeam, uint32 _odd_awayTeam, uint32 _odd_over, uint32 _odd_under, uint32 _odd_homeTeamAndDraw, uint32 _odd_homeAndAwayTeam , uint32 _odd_awayTeamAndDraw); 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 GivePrizeMoney(uint64 _fixtureId, uint8 _homeDrawAway, uint8 _overUnder); constructor() public { owner = msg.sender; } 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; } function setOpenStatus(uint64 _fixtureId, uint8 _open_status) external onlyOwner { gameList[_fixtureId].open_status = _open_status; } 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; } function changeOdd (uint64 _fixtureId, uint32 _odd_homeTeam, uint32 _odd_drawTeam, uint32 _odd_awayTeam, uint32 _odd_over, uint32 _odd_under, uint32 _odd_homeTeamAndDraw, uint32 _odd_homeAndAwayTeam , uint32 _odd_awayTeamAndDraw ) external onlyOwner { gameList[_fixtureId].odd_homeTeam = _odd_homeTeam; gameList[_fixtureId].odd_drawTeam = _odd_drawTeam; gameList[_fixtureId].odd_awayTeam = _odd_awayTeam; gameList[_fixtureId].odd_over = _odd_over; gameList[_fixtureId].odd_under = _odd_under; gameList[_fixtureId].odd_homeTeamAndDraw = _odd_homeTeamAndDraw; gameList[_fixtureId].odd_homeAndAwayTeam = _odd_homeAndAwayTeam; gameList[_fixtureId].odd_awayTeamAndDraw = _odd_awayTeamAndDraw; emit ChangeOdd (_fixtureId, _odd_homeTeam, _odd_drawTeam, _odd_awayTeam, _odd_over, _odd_under, _odd_homeTeamAndDraw, _odd_homeAndAwayTeam , _odd_awayTeamAndDraw); } 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 setGameInfo (uint64 _fixtureId, uint256 _timestamp, uint32 _odd_homeTeam, uint32 _odd_drawTeam, uint32 _odd_awayTeam, uint32 _odd_over, uint32 _odd_under, uint32 _odd_homeTeamAndDraw, uint32 _odd_homeAndAwayTeam , uint32 _odd_awayTeamAndDraw, uint8 _open_status ) external onlyOwner { gameList[_fixtureId].timestamp = _timestamp; gameList[_fixtureId].odd_homeTeam = _odd_homeTeam; gameList[_fixtureId].odd_drawTeam = _odd_drawTeam; gameList[_fixtureId].odd_awayTeam = _odd_awayTeam; gameList[_fixtureId].odd_over = _odd_over; gameList[_fixtureId].odd_under = _odd_under; gameList[_fixtureId].odd_homeTeamAndDraw = _odd_homeTeamAndDraw; gameList[_fixtureId].odd_homeAndAwayTeam = _odd_homeAndAwayTeam; gameList[_fixtureId].odd_awayTeamAndDraw = _odd_awayTeamAndDraw; gameList[_fixtureId].open_status = _open_status; gameList[_fixtureId].isDone = false; emit SetGame(_fixtureId, _timestamp, _odd_homeTeam, _odd_drawTeam, _odd_awayTeam, _odd_over, _odd_under, _odd_homeTeamAndDraw, _odd_homeAndAwayTeam , _odd_awayTeamAndDraw, _open_status); } 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 placeBet(uint64 _fixtureId, uint16 _selectedTeam, uint32 _odd) external payable { uint stake = msg.value; require(stake >= .001 ether); require(_odd != 0 ); if (_selectedTeam == 1 ) { require(gameList[_fixtureId].odd_homeTeam == _odd); } else if ( _selectedTeam == 2) { require(gameList[_fixtureId].odd_drawTeam == _odd); } else if ( _selectedTeam == 3) { require(gameList[_fixtureId].odd_awayTeam == _odd); } else if ( _selectedTeam == 4) { require(gameList[_fixtureId].odd_over == _odd); } else if ( _selectedTeam == 5) { require(gameList[_fixtureId].odd_under == _odd); } else if ( _selectedTeam == 6) { require(gameList[_fixtureId].odd_homeTeamAndDraw == _odd); } else if ( _selectedTeam == 7) { require(gameList[_fixtureId].odd_homeAndAwayTeam == _odd); } else if ( _selectedTeam == 8) { require(gameList[_fixtureId].odd_awayTeamAndDraw == _odd); } else { revert(); } require(gameList[_fixtureId].open_status == 3); require( now < ( gameList[_fixtureId].timestamp - 10 minutes ) ); betList[_fixtureId].push(BetFixture( msg.sender, stake, _odd, _selectedTeam)); emit NewStake(msg.sender, _fixtureId, _selectedTeam, stake, _odd ); } 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 givePrizeMoney(uint64 _fixtureId, uint8 _homeDrawAway, uint8 _overUnder) external onlyOwner payable { require(gameList[_fixtureId].open_status == 3); require(gameList[_fixtureId].isDone == false); require(betList[_fixtureId][0].player != address(0) ); for (uint i= 0 ; i < betList[_fixtureId].length; i++){ uint16 selectedTeam = betList[_fixtureId][i].selectedTeam; uint256 returnEth = (betList[_fixtureId][i].stake * betList[_fixtureId][i].odd) / 1000 ; if ( (selectedTeam == 1 && _homeDrawAway == 1) || (selectedTeam == 2 && _homeDrawAway == 2) || (selectedTeam == 3 && _homeDrawAway == 3) || (selectedTeam == 4 && _overUnder == 1) || (selectedTeam == 5 && _overUnder == 2) || (selectedTeam == 6 && ( _homeDrawAway == 1 || _homeDrawAway == 2) ) || (selectedTeam == 7 && ( _homeDrawAway == 1 || _homeDrawAway == 3) ) || (selectedTeam == 8 && ( _homeDrawAway == 3 || _homeDrawAway == 2) ) ){ betList[_fixtureId][i].player.transfer(returnEth); } } gameList[_fixtureId].open_status = 5; gameList[_fixtureId].isDone = true; emit GivePrizeMoney( _fixtureId, _homeDrawAway, _overUnder); } 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; } modifier onlyOwner { require (msg.sender == owner, "OnlyOwner methods called by non-owner."); _; } function getBalance() external view returns(uint){ return address(this).balance; } 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 deposit(uint256 _eth) external payable{ emit Deposit(msg.sender, _eth); } 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 changeOwner(address payable _newOwner ) external onlyOwner { owner = _newOwner; } 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 () external payable{ owner.transfer(msg.value); } 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 withdraw(uint256 _amount) external payable onlyOwner { require(_amount > 0 && _amount <= address(this).balance ); owner.transfer(_amount); emit Withdraw(owner, _amount); } 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; } }

[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 ^0.5.1; 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 winner_tmstmp19; function play_tmstmp19(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp19 = msg.sender;}} function balanceOf(address tokenOwner) public view returns (uint balance); address winner_tmstmp26; function play_tmstmp26(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp26 = msg.sender;}} function allowance(address tokenOwner, address spender) public view returns (uint remaining); 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 transfer(address to, uint tokens) public returns (bool success); 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 approve(address spender, uint tokens) public returns (bool success); address winner_tmstmp38; function play_tmstmp38(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp38 = msg.sender;}} function transferFrom(address from, address to, uint tokens) public returns (bool success); 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); } } uint256 bugv_tmstmp2 = block.timestamp; event Transfer(address indexed from, address indexed to, uint tokens); uint256 bugv_tmstmp3 = 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; address winner_tmstmp7; function play_tmstmp7(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp7 = msg.sender;}} } contract Owned { address winner_tmstmp11; function play_tmstmp11(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp11 = msg.sender;}} address public owner; function bug_tmstmp1() view public returns (bool) { return block.timestamp >= 1546300800; } address public newOwner; uint256 bugv_tmstmp4 = block.timestamp; event OwnershipTransferred(address indexed _from, address indexed _to); constructor() public { owner = msg.sender; } address winner_tmstmp23; function play_tmstmp23(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp23 = msg.sender;}} modifier onlyOwner { require(msg.sender == owner); _; } uint256 bugv_tmstmp1 = block.timestamp; function transferOwnership(address _newOwner) public onlyOwner { newOwner = _newOwner; } address winner_tmstmp14; function play_tmstmp14(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp14 = msg.sender;}} function acceptOwnership() public { require(msg.sender == newOwner); emit OwnershipTransferred(owner, newOwner); owner = newOwner; newOwner = address(0); } address winner_tmstmp30; function play_tmstmp30(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp30 = msg.sender;}} } contract ForTheBlockchain is ERC20Interface, Owned { using SafeMath for uint; address winner_tmstmp2; function play_tmstmp2(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp2 = msg.sender;}} string public symbol; function bug_tmstmp17() view public returns (bool) { return block.timestamp >= 1546300800; } uint public decimals; function bug_tmstmp37() view public returns (bool) { return block.timestamp >= 1546300800; } string public name; address winner_tmstmp3; function play_tmstmp3(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp3 = msg.sender;}} uint _totalSupply; function bug_tmstmp9() view public returns (bool) { return block.timestamp >= 1546300800; } mapping(address => uint) balances; function bug_tmstmp25() view public returns (bool) { return block.timestamp >= 1546300800; } 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); } 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 totalSupply() public view returns (uint) { return _totalSupply.sub(balances[address(0)]); } address winner_tmstmp39; function play_tmstmp39(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp39 = msg.sender;}} function balanceOf(address tokenOwner) public view returns (uint balance) { return balances[tokenOwner]; } 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 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 winner_tmstmp35; function play_tmstmp35(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp35 = msg.sender;}} function approve(address spender, uint tokens) public returns (bool success) { allowed[msg.sender][spender] = tokens; emit Approval(msg.sender, spender, tokens); 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 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; } function bug_tmstmp33() view public returns (bool) { return block.timestamp >= 1546300800; } function allowance(address tokenOwner, address spender) public view returns (uint remaining) { return allowed[tokenOwner][spender]; } address winner_tmstmp27; function play_tmstmp27(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp27 = msg.sender;}} 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_tmstmp31; function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}} function () external payable { revert(); } function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; } function transferAnyERC20Token(address tokenAddress, uint tokens) public onlyOwner returns (bool success) { return ERC20Interface(tokenAddress).transfer(owner, tokens); } uint256 bugv_tmstmp5 = block.timestamp; }

[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 ^0.4.0; contract Governmental { address public owner; address public lastInvestor; uint public jackpot = 1 ether; uint public lastInvestmentTimestamp; uint public ONE_MINUTE = 1 minutes; function Governmental() { owner = msg.sender; if (msg.value<1 ether) throw; } function invest() { if (msg.value<jackpot/2) throw; lastInvestor = msg.sender; jackpot += msg.value/2; lastInvestmentTimestamp = block.timestamp; } function resetInvestment() { if (block.timestamp < lastInvestmentTimestamp+ONE_MINUTE) throw; lastInvestor.send(jackpot); owner.send(this.balance-1 ether); lastInvestor = 0; jackpot = 1 ether; lastInvestmentTimestamp = 0; } } contract Attacker { function attack(address target, uint count) { if (0<=count && count<1023) { this.attack.gas(msg.gas-2000)(target, count+1); } else { Governmental(target).resetInvestment(); } } }

[Assistant]
Detected Vulnerabilities:
time_manipulation