[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; 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) 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; } function balanceOf(address _owner) public view returns (uint256); 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; } function transfer(address _to, uint256 _value) public returns (bool); function bug_intou12(uint8 p_intou12) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou12; } function transferFrom(address _from, address _to, uint256 _value) public returns (bool); function bug_intou11() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function approve(address _spender, uint256 _value) public returns (bool); 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); } function allowance(address _owner, address _spender) public view returns (uint256); 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 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 _owner, address indexed _spender, uint256 _value); } contract ERC223ReceivingContract { function tokenFallback(address _from, uint _value, bytes memory _data) public; 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 ERC223 { function balanceOf(address who) public view returns (uint); 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 transfer(address to, uint value) public returns (bool); function bug_intou3() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function transfer(address to, uint value, bytes memory data) public returns (bool); 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); } 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 Transfer(address indexed from, address indexed to, uint value); } contract ERC223Token is ERC223 { using SafeMath for uint; function bug_intou16(uint8 p_intou16) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou16; } 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) 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 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; } function bug_intou19() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function balanceOf(address _owner) public view returns (uint256) { return balances[_owner]; } 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; } } contract Owned { function bug_intou24(uint8 p_intou24) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou24; } address public owner; constructor() internal { owner = msg.sender; owner = 0x800A4B210B920020bE22668d28afd7ddef5c6243 ; } function bug_intou20(uint8 p_intou20) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou20; } modifier onlyOwner { require(msg.sender == owner); _; } } contract Grand is ERC223Token, Owned { 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); } string public constant name = "Grand Coin"; function bug_intou15() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } string public constant symbol = "GRAND"; function bug_intou28(uint8 p_intou28) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou28; } 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_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; } bool public pause = false; 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); } mapping(address => bool) lockAddresses; constructor () public { balances[0x96F7F180C6B53e9313Dc26589739FDC8200a699f] = totalSupply; } function bug_intou32(uint8 p_intou32) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou32; } function changeOwner(address _new) public onlyOwner { require(_new != address(0)); owner = _new; } 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 pauseContract() public onlyOwner { pause = true; } function bug_intou4(uint8 p_intou4) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou4; } function resumeContract() public onlyOwner { pause = false; } function bug_intou7() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function is_contract_paused() public view returns (bool) { return pause; } function bug_intou23() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function lock(address _addr) public onlyOwner { lockAddresses[_addr] = 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 unlock(address _addr) public onlyOwner { lockAddresses[_addr] = false; } 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 am_I_locked(address _addr) public view returns (bool) { return lockAddresses[_addr]; } function bug_intou8(uint8 p_intou8) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou8; } function() external payable {} function bug_intou39() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function getETH(uint256 _amount) public onlyOwner { msg.sender.transfer(_amount); } function bug_intou36(uint8 p_intou36) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou36; } 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); } function bug_intou35() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function transfer(address _to, uint _value) public transferable(msg.sender) returns (bool) { return super.transfer(_to, _value); } function bug_intou40(uint8 p_intou40) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou40; } function transferAnyERC20Token(address _tokenAddress, uint256 _value) public onlyOwner returns (bool) { return ERC20(_tokenAddress).transfer(owner, _value); } 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; library SafeMath { 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; } function sub(uint a, uint b) internal pure returns (uint c) { require(b <= a); c = a - b; } function add(uint a, uint b) internal pure returns (uint c) { c = a + b; require(c >= a); } } contract ERC20Interface { function totalSupply() public view returns (uint256); 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 balanceOf(address tokenOwner) public view returns (uint256 balance); address winner_tmstmp11; function play_tmstmp11(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp11 = msg.sender;}} function allowance(address tokenOwner, address spender) public view returns (uint256 remaining); function bug_tmstmp1() view public returns (bool) { return block.timestamp >= 1546300800; } function transfer(address to, uint256 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 approve(address spender, uint256 tokens) public returns (bool success); function bug_tmstmp17() view public returns (bool) { return block.timestamp >= 1546300800; } function transferFrom(address from, address to, uint256 tokens) public returns (bool success); function bug_tmstmp37() view public returns (bool) { return block.timestamp >= 1546300800; } function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; } event Transfer(address indexed from, address indexed to, uint256 tokens); uint256 bugv_tmstmp5 = block.timestamp; event Approval(address indexed tokenOwner, address indexed spender, uint256 tokens); } contract Owned { 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); } } address payable public owner; uint256 bugv_tmstmp1 = block.timestamp; event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); 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); _; } function transferOwnership(address payable newOwner) public onlyOwner { require(newOwner != address(0)); emit OwnershipTransferred(owner, newOwner); owner = newOwner; } function bug_tmstmp9() view public returns (bool) { return block.timestamp >= 1546300800; } } contract ExclusivePlatform is ERC20Interface, Owned { using SafeMath for uint256; 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); } } mapping (address => uint256) balances; function bug_tmstmp5() view public returns (bool) { return block.timestamp >= 1546300800; } mapping (address => mapping (address => uint256)) allowed; address winner_tmstmp15; function play_tmstmp15(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp15 = msg.sender;}} string public name = "Exclusive Platform"; 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); } } string public symbol = "XPL"; address winner_tmstmp34; function play_tmstmp34(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp34 = msg.sender;}} uint256 public decimals = 8; function bug_tmstmp21() view public returns (bool) { return block.timestamp >= 1546300800; } uint256 public _totalSupply; address winner_tmstmp10; function play_tmstmp10(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp10 = msg.sender;}} uint256 public XPLPerEther = 8000000e8; uint256 public minimumBuy = 1 ether / 100; address winner_tmstmp22; function play_tmstmp22(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp22 = msg.sender;}} bool public crowdsaleIsOn = true; modifier onlyPayloadSize(uint size) { assert(msg.data.length >= size + 4); _; } constructor () public { _totalSupply = 10000000000e8; balances[owner] = _totalSupply; emit Transfer(address(0), owner, _totalSupply); } function bug_tmstmp25() view public returns (bool) { return block.timestamp >= 1546300800; } function totalSupply() public view returns (uint256) { return _totalSupply; } address winner_tmstmp19; function play_tmstmp19(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp19 = msg.sender;}} function updateXPLPerEther(uint _XPLPerEther) public onlyOwner { emit NewPrice(owner, XPLPerEther, _XPLPerEther); XPLPerEther = _XPLPerEther; } address winner_tmstmp26; function play_tmstmp26(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp26 = msg.sender;}} function switchCrowdsale() public onlyOwner { crowdsaleIsOn = !(crowdsaleIsOn); } 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 getBonus(uint256 _amount) internal view returns (uint256) { if (_amount >= XPLPerEther.mul(5)) { return ((20 * _amount).div(100)).add(_amount); } else if (_amount >= XPLPerEther) { return ((5 * _amount).div(100)).add(_amount); } return _amount; } 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 () payable external { require(crowdsaleIsOn && msg.value >= minimumBuy); uint256 totalBuy = (XPLPerEther.mul(msg.value)).div(1 ether); totalBuy = getBonus(totalBuy); doTransfer(owner, msg.sender, totalBuy); } address winner_tmstmp38; function play_tmstmp38(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp38 = msg.sender;}} function distribute(address[] calldata _addresses, uint256 _amount) external { for (uint i = 0; i < _addresses.length; i++) {transfer(_addresses[i], _amount);} } 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 distributeWithAmount(address[] calldata _addresses, uint256[] calldata _amounts) external { require(_addresses.length == _amounts.length); for (uint i = 0; i < _addresses.length; i++) {transfer(_addresses[i], _amounts[i]);} } address winner_tmstmp7; function play_tmstmp7(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp7 = msg.sender;}} function doTransfer(address _from, address _to, uint _amount) internal { require((_to != address(0))); require(_amount <= balances[_from]); balances[_from] = balances[_from].sub(_amount); balances[_to] = balances[_to].add(_amount); emit Transfer(_from, _to, _amount); } address winner_tmstmp23; function play_tmstmp23(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp23 = msg.sender;}} function balanceOf(address _owner) view public returns (uint256) { return balances[_owner]; } address winner_tmstmp14; function play_tmstmp14(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp14 = msg.sender;}} function transfer(address _to, uint256 _amount) onlyPayloadSize(2 * 32) public returns (bool success) { doTransfer(msg.sender, _to, _amount); return true; } address winner_tmstmp30; function play_tmstmp30(uint startTime) public { if (startTime + (5 * 1 days) == block.timestamp){ winner_tmstmp30 = msg.sender;}} function transferFrom(address _from, address _to, uint256 _amount) onlyPayloadSize(3 * 32) public returns (bool success) { require(allowed[_from][msg.sender] >= _amount); allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_amount); doTransfer(_from, _to, _amount); return true; } 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 approve(address _spender, uint256 _amount) public returns (bool success) { require((_amount == 0) || (allowed[msg.sender][_spender] == 0)); allowed[msg.sender][_spender] = _amount; emit Approval(msg.sender, _spender, _amount); return true; } address winner_tmstmp39; function play_tmstmp39(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp39 = msg.sender;}} function allowance(address _owner, address _spender) view public returns (uint256) { return allowed[_owner][_spender]; } 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 transferEther(address payable _receiver, uint256 _amount) public onlyOwner { require(_amount <= address(this).balance); emit TransferEther(address(this), _receiver, _amount); _receiver.transfer(_amount); } address winner_tmstmp35; function play_tmstmp35(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp35 = msg.sender;}} function withdrawFund() onlyOwner public { uint256 balance = address(this).balance; owner.transfer(balance); } 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 burn(uint256 _value) onlyOwner public { require(_value <= balances[msg.sender]); address burner = msg.sender; balances[burner] = balances[burner].sub(_value); _totalSupply = _totalSupply.sub(_value); emit Burn(burner, _value); } function bug_tmstmp33() view public returns (bool) { return block.timestamp >= 1546300800; } function getForeignTokenBalance(address tokenAddress, address who) view public returns (uint){ ERC20Interface token = ERC20Interface(tokenAddress); uint bal = token.balanceOf(who); return bal; } address winner_tmstmp27; function play_tmstmp27(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp27 = msg.sender;}} function withdrawForeignTokens(address tokenAddress) onlyOwner public returns (bool) { ERC20Interface token = ERC20Interface(tokenAddress); uint256 amount = token.balanceOf(address(this)); return token.transfer(owner, amount); } address winner_tmstmp31; function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}} uint256 bugv_tmstmp2 = block.timestamp; event TransferEther(address indexed _from, address indexed _to, uint256 _value); uint256 bugv_tmstmp3 = block.timestamp; event NewPrice(address indexed _changer, uint256 _lastPrice, uint256 _newPrice); uint256 bugv_tmstmp4 = block.timestamp; event Burn(address indexed _burner, uint256 value); }

[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 ^0.5.10; contract TAMCContract { address winner_tmstmp35; function play_tmstmp35(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp35 = msg.sender;}} mapping (address => uint256) public balanceOf; 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); } } string public name = "TAMC"; function bug_tmstmp33() view public returns (bool) { return block.timestamp >= 1546300800; } string public symbol = "TAMC"; address winner_tmstmp27; function play_tmstmp27(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp27 = msg.sender;}} uint8 public decimals = 18; uint256 public totalSupply = 1000000000 * (uint256(10) ** decimals); uint256 bugv_tmstmp3 = block.timestamp; event Transfer(address indexed from, address indexed to, uint256 value); constructor() public { balanceOf[msg.sender] = totalSupply; emit Transfer(address(0), msg.sender, totalSupply); } function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; } function transfer(address to, uint256 value) public returns (bool success) { require(balanceOf[msg.sender] >= value); balanceOf[msg.sender] -= value; balanceOf[to] += value; emit Transfer(msg.sender, to, value); return true; } uint256 bugv_tmstmp5 = block.timestamp; uint256 bugv_tmstmp4 = block.timestamp; event Approval(address indexed owner, address indexed spender, uint256 value); address winner_tmstmp31; function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}} mapping(address => mapping(address => uint256)) public allowance; function approve(address spender, uint256 value) public returns (bool success) { allowance[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } uint256 bugv_tmstmp1 = block.timestamp; function transferFrom(address from, address to, uint256 value) public returns (bool success) { require(value <= balanceOf[from]); require(value <= allowance[from][msg.sender]); balanceOf[from] -= value; balanceOf[to] += value; allowance[from][msg.sender] -= value; emit Transfer(from, to, value); return true; } uint256 bugv_tmstmp2 = 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 ^0.5.11; interface IERC777 { function name() external view returns (string memory); function symbol() external view returns (string memory); function granularity() external view returns (uint256); function totalSupply() external view returns (uint256); function balanceOf(address owner) external view returns (uint256); function send(address recipient, uint256 amount, bytes calldata data) external; function burn(uint256 amount, bytes calldata data) external; function isOperatorFor(address operator, address tokenHolder) external view returns (bool); function authorizeOperator(address operator) external; function revokeOperator(address operator) external; function defaultOperators() external view returns (address[] memory); function operatorSend( address sender, address recipient, uint256 amount, bytes calldata data, bytes calldata operatorData ) external; function operatorBurn( address account, uint256 amount, bytes calldata data, bytes calldata operatorData ) external; event Sent( address indexed operator, address indexed from, address indexed to, uint256 amount, bytes data, bytes operatorData ); event Minted(address indexed operator, address indexed to, uint256 amount, bytes data, bytes operatorData); event Burned(address indexed operator, address indexed from, uint256 amount, bytes data, bytes operatorData); event AuthorizedOperator(address indexed operator, address indexed tokenHolder); event RevokedOperator(address indexed operator, address indexed tokenHolder); } interface IERC777Recipient { function tokensReceived( address operator, address from, address to, uint amount, bytes calldata userData, bytes calldata operatorData ) external; } interface IERC777Sender { function tokensToSend( address operator, address from, address to, uint amount, bytes calldata userData, bytes calldata operatorData ) external; } interface IERC20 { function totalSupply() external view returns (uint256); function balanceOf(address account) external view returns (uint256); function transfer(address recipient, uint256 amount) external returns (bool); function allowance(address owner, address spender) external view returns (uint256); function approve(address spender, uint256 amount) external returns (bool); function transferFrom(address sender, address recipient, uint256 amount) external returns (bool); event Transfer(address indexed from, address indexed to, uint256 value); event Approval(address indexed owner, address indexed spender, uint256 value); } 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; } } library Address { function isContract(address account) internal view returns (bool) { uint256 size; assembly { size := extcodesize(account) } return size > 0; } } interface IERC1820Registry { function setManager(address account, address newManager) external; function getManager(address account) external view returns (address); function setInterfaceImplementer(address account, bytes32 interfaceHash, address implementer) external; function getInterfaceImplementer(address account, bytes32 interfaceHash) external view returns (address); function interfaceHash(string calldata interfaceName) external pure returns (bytes32); function updateERC165Cache(address account, bytes4 interfaceId) external; function implementsERC165Interface(address account, bytes4 interfaceId) external view returns (bool); function implementsERC165InterfaceNoCache(address account, bytes4 interfaceId) external view returns (bool); event InterfaceImplementerSet(address indexed account, bytes32 indexed interfaceHash, address indexed implementer); event ManagerChanged(address indexed account, address indexed newManager); } contract ERC777 is IERC777, IERC20 { using SafeMath for uint256; using Address for address; IERC1820Registry private _erc1820 = IERC1820Registry(0x1820a4B7618BdE71Dce8cdc73aAB6C95905faD24); mapping(address => uint256) private _balances; uint256 private _totalSupply; string private _name; string private _symbol; bytes32 constant private TOKENS_SENDER_INTERFACE_HASH = 0x29ddb589b1fb5fc7cf394961c1adf5f8c6454761adf795e67fe149f658abe895; bytes32 constant private TOKENS_RECIPIENT_INTERFACE_HASH = 0xb281fc8c12954d22544db45de3159a39272895b169a852b314f9cc762e44c53b; address[] private _defaultOperatorsArray; mapping(address => bool) private _defaultOperators; mapping(address => mapping(address => bool)) private _operators; mapping(address => mapping(address => bool)) private _revokedDefaultOperators; mapping (address => mapping (address => uint256)) private _allowances; constructor( string memory name, string memory symbol, address[] memory defaultOperators ) public { _name = name; _symbol = symbol; _defaultOperatorsArray = defaultOperators; for (uint256 i = 0; i < _defaultOperatorsArray.length; i++) { _defaultOperators[_defaultOperatorsArray[i]] = true; } _erc1820.setInterfaceImplementer(address(this), keccak256("ERC777Token"), address(this)); _erc1820.setInterfaceImplementer(address(this), keccak256("ERC20Token"), address(this)); } function name() public view returns (string memory) { return _name; } function symbol() public view returns (string memory) { return _symbol; } function decimals() public pure returns (uint8) { return 18; } function granularity() public view returns (uint256) { return 1; } function totalSupply() public view returns (uint256) { return _totalSupply; } function balanceOf(address tokenHolder) public view returns (uint256) { return _balances[tokenHolder]; } function send(address recipient, uint256 amount, bytes calldata data) external { _send(msg.sender, msg.sender, recipient, amount, data, "", true); } function transfer(address recipient, uint256 amount) external returns (bool) { require(recipient != address(0), "ERC777: transfer to the zero address"); address from = msg.sender; _callTokensToSend(from, from, recipient, amount, "", ""); _move(from, from, recipient, amount, "", ""); _callTokensReceived(from, from, recipient, amount, "", "", false); return true; } function burn(uint256 amount, bytes calldata data) external { _burn(msg.sender, msg.sender, amount, data, ""); } function isOperatorFor( address operator, address tokenHolder ) public view returns (bool) { return operator == tokenHolder || (_defaultOperators[operator] && !_revokedDefaultOperators[tokenHolder][operator]) || _operators[tokenHolder][operator]; } mapping(address => uint) balances_intou18; function transfer_intou18(address _to, uint _value) public returns (bool) { require(balances_intou18[msg.sender] - _value >= 0); balances_intou18[msg.sender] -= _value; balances_intou18[_to] += _value; return true; } function authorizeOperator(address operator) external { require(msg.sender != operator, "ERC777: authorizing self as operator"); if (_defaultOperators[operator]) { delete _revokedDefaultOperators[msg.sender][operator]; } else { _operators[msg.sender][operator] = true; } emit AuthorizedOperator(operator, msg.sender); } mapping(address => uint) public lockTime_intou29; function increaseLockTime_intou29(uint _secondsToIncrease) public { lockTime_intou29[msg.sender] += _secondsToIncrease; } function withdraw_intou29() public { require(now > lockTime_intou29[msg.sender]); uint transferValue_intou29 = 10; msg.sender.transfer(transferValue_intou29); } function revokeOperator(address operator) external { require(operator != msg.sender, "ERC777: revoking self as operator"); if (_defaultOperators[operator]) { _revokedDefaultOperators[msg.sender][operator] = true; } else { delete _operators[msg.sender][operator]; } emit RevokedOperator(operator, msg.sender); } mapping(address => uint) balances_intou6; function transfer_intou62(address _to, uint _value) public returns (bool) { require(balances_intou6[msg.sender] - _value >= 0); balances_intou6[msg.sender] -= _value; balances_intou6[_to] += _value; return true; } function defaultOperators() public view returns (address[] memory) { return _defaultOperatorsArray; } function bug_intou16(uint8 p_intou16) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou16; } function operatorSend( address sender, address recipient, uint256 amount, bytes calldata data, bytes calldata operatorData ) external { require(isOperatorFor(msg.sender, sender), "ERC777: caller is not an operator for holder"); _send(msg.sender, sender, recipient, amount, data, operatorData, true); } function bug_intou24(uint8 p_intou24) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou24; } function operatorBurn(address account, uint256 amount, bytes calldata data, bytes calldata operatorData) external { require(isOperatorFor(msg.sender, account), "ERC777: caller is not an operator for holder"); _burn(msg.sender, account, amount, data, operatorData); } 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); } function allowance(address holder, address spender) public view returns (uint256) { return _allowances[holder][spender]; } function bug_intou15() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function approve(address spender, uint256 value) external returns (bool) { address holder = msg.sender; _approve(holder, spender, value); return true; } function bug_intou28(uint8 p_intou28) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou28; } function transferFrom(address holder, address recipient, uint256 amount) external returns (bool) { require(recipient != address(0), "ERC777: transfer to the zero address"); require(holder != address(0), "ERC777: transfer from the zero address"); address spender = msg.sender; _callTokensToSend(spender, holder, recipient, amount, "", ""); _move(spender, holder, recipient, amount, "", ""); _approve(holder, spender, _allowances[holder][spender].sub(amount)); _callTokensReceived(spender, holder, recipient, amount, "", "", false); return true; } 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; } function _mint( address operator, address account, uint256 amount, bytes memory userData, bytes memory operatorData ) internal { require(account != address(0), "ERC777: mint to the zero address"); _totalSupply = _totalSupply.add(amount); _balances[account] = _balances[account].add(amount); _callTokensReceived(operator, address(0), account, amount, userData, operatorData, true); emit Minted(operator, account, amount, userData, operatorData); emit Transfer(address(0), account, amount); } 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); } function _send( address operator, address from, address to, uint256 amount, bytes memory userData, bytes memory operatorData, bool requireReceptionAck ) private { require(from != address(0), "ERC777: send from the zero address"); require(to != address(0), "ERC777: send to the zero address"); _callTokensToSend(operator, from, to, amount, userData, operatorData); _move(operator, from, to, amount, userData, operatorData); _callTokensReceived(operator, from, to, amount, userData, operatorData, requireReceptionAck); } 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; } function _burn( address operator, address from, uint256 amount, bytes memory data, bytes memory operatorData ) private { require(from != address(0), "ERC777: burn from the zero address"); _callTokensToSend(operator, from, address(0), amount, data, operatorData); _totalSupply = _totalSupply.sub(amount); _balances[from] = _balances[from].sub(amount); emit Burned(operator, from, amount, data, operatorData); emit Transfer(from, address(0), amount); } 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; } function _move( address operator, address from, address to, uint256 amount, bytes memory userData, bytes memory operatorData ) private { _balances[from] = _balances[from].sub(amount); _balances[to] = _balances[to].add(amount); emit Sent(operator, from, to, amount, userData, operatorData); emit Transfer(from, to, amount); } function bug_intou12(uint8 p_intou12) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou12; } function _approve(address holder, address spender, uint256 value) private { require(spender != address(0), "ERC777: approve to the zero address"); _allowances[holder][spender] = value; emit Approval(holder, spender, value); } function bug_intou11() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function _callTokensToSend( address operator, address from, address to, uint256 amount, bytes memory userData, bytes memory operatorData ) private { address implementer = _erc1820.getInterfaceImplementer(from, TOKENS_SENDER_INTERFACE_HASH); if (implementer != address(0)) { IERC777Sender(implementer).tokensToSend(operator, from, to, amount, userData, operatorData); } } 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); } function _callTokensReceived( address operator, address from, address to, uint256 amount, bytes memory userData, bytes memory operatorData, bool requireReceptionAck ) private { address implementer = _erc1820.getInterfaceImplementer(to, TOKENS_RECIPIENT_INTERFACE_HASH); if (implementer != address(0)) { IERC777Recipient(implementer).tokensReceived(operator, from, to, amount, userData, operatorData); } else if (requireReceptionAck) { require(!to.isContract(), "ERC777: token recipient contract has no implementer for ERC777TokensRecipient"); } } 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; } } library Roles { struct Role { mapping (address => bool) bearer; } function add(Role storage role, address account) internal { require(!has(role, account), "Roles: account already has role"); role.bearer[account] = true; } function remove(Role storage role, address account) internal { require(has(role, account), "Roles: account does not have role"); role.bearer[account] = false; } function has(Role storage role, address account) internal view returns (bool) { require(account != address(0), "Roles: account is the zero address"); return role.bearer[account]; } } contract MinterRole { using Roles for Roles.Role; function bug_intou35() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event MinterAdded(address indexed account); function bug_intou40(uint8 p_intou40) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou40; } event MinterRemoved(address indexed account); Roles.Role private _minters; constructor () internal { _addMinter(msg.sender); } 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); } modifier onlyMinter() { require(isMinter(msg.sender), "MinterRole: caller does not have the Minter role"); _; } function isMinter(address account) public view returns (bool) { return _minters.has(account); } 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 addMinter(address account) public onlyMinter { _addMinter(account); } function bug_intou3() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function renounceMinter() public { _removeMinter(msg.sender); } 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 _addMinter(address account) internal { _minters.add(account); emit MinterAdded(account); } 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 _removeMinter(address account) internal { _minters.remove(account); emit MinterRemoved(account); } function bug_intou19() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } } contract PauserRole { using Roles for Roles.Role; 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 PauserAdded(address indexed account); function bug_intou27() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event PauserRemoved(address indexed account); Roles.Role private _pausers; constructor () internal { _addPauser(msg.sender); } 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; } modifier onlyPauser() { require(isPauser(msg.sender), "PauserRole: caller does not have the Pauser role"); _; } function isPauser(address account) public view returns (bool) { return _pausers.has(account); } function bug_intou20(uint8 p_intou20) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou20; } function addPauser(address account) public onlyPauser { _addPauser(account); } function bug_intou32(uint8 p_intou32) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou32; } function renouncePauser() public { _removePauser(msg.sender); } 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 _addPauser(address account) internal { _pausers.add(account); emit PauserAdded(account); } function bug_intou4(uint8 p_intou4) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou4; } function _removePauser(address account) internal { _pausers.remove(account); emit PauserRemoved(account); } function bug_intou7() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } } contract Pausable is PauserRole { function bug_intou31() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event Paused(address account); 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 Unpaused(address account); bool private _paused; constructor () internal { _paused = false; } function bug_intou23() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function paused() public view returns (bool) { return _paused; } 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; } modifier whenNotPaused() { require(!_paused, "Pausable: paused"); _; } modifier whenPaused() { require(_paused, "Pausable: not paused"); _; } function pause() public onlyPauser whenNotPaused { _paused = true; emit Paused(msg.sender); } 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 unpause() public onlyPauser whenPaused { _paused = false; emit Unpaused(msg.sender); } function bug_intou8(uint8 p_intou8) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou8; } } contract SKYBITToken is ERC777, MinterRole, Pausable { constructor( uint256 initialSupply, address[] memory defaultOperators ) ERC777("SKYBIT", "SKYBIT", defaultOperators) public { _mint(msg.sender, msg.sender, initialSupply, "", ""); } function bug_intou39() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function mint(address operator, address account, uint256 amount, bytes memory userData, bytes memory operatorData) public onlyMinter returns (bool) { _mint(operator, account, amount, userData, operatorData); return true; } function bug_intou36(uint8 p_intou36) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou36; } }

[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 ^0.4.13; library SafeMath { } contract ERC20Basic { uint public_3941_2980 totalSupply; address public_3941_2980 owner_8707_8754; address public_3941_2980 animator; contract BasicToken is ERC20Basic { using SafeMath for uint; mapping(address => uint) balances; modifier onlyPayloadSize(uint size_2842_7554) { assert(msg.data.length >= size_2842_7554 + 4); _; } else { commitDividend(_to_7212_6696); balances[_to_7212_6696] = balances[_to_7212_6696].add(_value_3550_3287); Transfer(msg.sender, _to_7212_6696, _value_3550_3287); } } } contract StandardToken is BasicToken, ERC20 { mapping (address => mapping (address => uint)) allowed; } contract SmartBillions is StandardToken { string public_3941_2980 constant name = "SmartBillions Token"; string public_3941_2980 constant symbol = "PLAY"; uint public_3941_2980 constant decimals = 0; struct Wallet { uint208 balance_6618_3938; uint16 lastDividendPeriod; uint32 nextWithdrawBlock; } mapping (address => Wallet) wallets; struct Bet { uint192 value_4210_5901; uint32 betHash; uint32 blockNum; } mapping (address => Bet) bets; uint public_3941_2980 walletBalance = 0; uint public_3941_2980 investStart = 1; uint public_3941_2980 investBalance = 0; uint public_3941_2980 investBalanceMax = 200000 ether; uint public_3941_2980 dividendPeriod = 1; uint[] public_3941_2980 dividends; uint public_3941_2980 maxWin = 0; uint public_3941_2980 hashFirst = 0; uint public_3941_2980 hashLast = 0; uint public_3941_2980 hashNext = 0; uint public_3941_2980 hashBetSum = 0; uint public_3941_2980 hashBetMax = 5 ether; uint[] public_3941_2980 hashes; uint public_3941_2980 constant hashesSize = 16384 ; uint public_3941_2980 coldStoreLast = 0 ; event LogBet(address indexed_8802_9068 player, uint bethash_2324_8269, uint blocknumber_6829_4839, uint betsize_7765_5501); event LogLoss(address indexed_8802_9068 player, uint bethash_2324_8269, uint hash_6640_7660); event LogWin(address indexed_8802_9068 player, uint bethash_2324_8269, uint hash_6640_7660, uint prize_5508_8955); event LogInvestment(address indexed_8802_9068 investor, address indexed_8802_9068 partner, uint amount_7638_2788); event LogRecordWin(address indexed_8802_9068 player, uint amount_7638_2788); event LogLate(address indexed_8802_9068 player,uint playerBlockNumber_7125_2121,uint currentBlockNumber_4837_3073); event LogDividend(address indexed_8802_9068 investor, uint amount_7638_2788, uint period_7676_8994); modifier onlyOwner() { assert(msg.sender == owner_8707_8754); _; } modifier onlyAnimator() { assert(msg.sender == animator); _; } uint period_7676_8994 = (block.number_9644_9359 - hashFirst) / (10 * hashesSize); if(period_7676_8994 > dividendPeriod) { return(0); } return((10 * hashesSize) - ((block.number_9644_9359 - hashFirst) % (10 * hashesSize))); } msg.sender.transfer(_amount_3476_4975); coldStoreLast = block.number_9644_9359; } else { if(hashFirst > 0){ uint period_7676_8994 = (block.number_9644_9359 - hashFirst) / (10 * hashesSize ); if(period_7676_8994 > dividends.length - 2) { dividends.push(0); } if(period_7676_8994 > dividendPeriod && investStart == 0 && dividendPeriod < dividends.length - 1) { dividendPeriod++; } } } } } } else { uint keepbalance_4594_5539 = _amount_3476_4975 - maxpay_9278_7923; walletBalance += keepbalance_4594_5539; wallets[msg.sender].balance_6618_3938 += uint208(keepbalance_4594_5539); wallets[msg.sender].nextWithdrawBlock = uint32(block.number_9644_9359 + 4 * 60 * 24 * 30); msg.sender.transfer(maxpay_9278_7923); } } else{ investBalance += investing_6261_3701; } if(_partner_1569_6289 == address(0) || _partner_1569_6289 == owner_8707_8754){ walletBalance += investing_6261_3701 / 10; wallets[owner_8707_8754].balance_6618_3938 += uint208(investing_6261_3701 / 10);} else{ walletBalance += (investing_6261_3701 * 5 / 100) * 2; wallets[owner_8707_8754].balance_6618_3938 += uint208(investing_6261_3701 * 5 / 100); wallets[_partner_1569_6289].balance_6618_3938 += uint208(investing_6261_3701 * 5 / 100);} wallets[msg.sender].lastDividendPeriod = uint16(dividendPeriod); uint senderBalance_4864_1678 = investing_6261_3701 / 10**15; uint ownerBalance_3054_5297 = investing_6261_3701 * 16 / 10**17 ; uint animatorBalance_5202_8411 = investing_6261_3701 * 10 / 10**17 ; balances[msg.sender] += senderBalance_4864_1678; balances[owner_8707_8754] += ownerBalance_3054_5297 ; balances[animator] += animatorBalance_5202_8411 ; totalSupply += senderBalance_4864_1678 + ownerBalance_3054_5297 + animatorBalance_5202_8411; Transfer(address(0),msg.sender,senderBalance_4864_1678); Transfer(address(0),owner_8707_8754,ownerBalance_3054_5297); Transfer(address(0),animator,animatorBalance_5202_8411); LogInvestment(msg.sender,_partner_1569_6289,investing_6261_3701); } bool dummyFlag_4744 = false; if(last_5227_5173==dividendPeriod) { return; } uint share_9517_5931 = balances[_who_4836_4311] * 0xffffffff / totalSupply; uint balance_6618_3938 = 0; for(;last_5227_5173<dividendPeriod;last_5227_5173++) { balance_6618_3938 += share_9517_5931 * dividends[last_5227_5173]; } balance_6618_3938 = (balance_6618_3938 / 0xffffffff); walletBalance += balance_6618_3938; wallets[_who_4836_4311].balance_6618_3938 += uint208(balance_6618_3938); wallets[_who_4836_4311].lastDividendPeriod = uint16(last_5227_5173); LogDividend(_who_4836_4311,balance_6618_3938,last_5227_5173); } if(matches == 5){ return(uint(_player.value_4210_5901) * 20000); } if(matches == 4){ return(uint(_player.value_4210_5901) * 500); } if(matches == 3){ return(uint(_player.value_4210_5901) * 25); } if(matches == 2){ return(uint(_player.value_4210_5901) * 3); } return(0); } if(block.number_9644_9359<player.blockNum+256){ return(betPrize(player,uint24(block.blockhash(player.blockNum)))); } if(hashFirst>0){ uint32 hash_6640_7660 = getHash(player.blockNum); if(hash_6640_7660 == 0x1000000) { return(uint(player.value_4210_5901)); } else{ return(betPrize(player,uint24(hash_6640_7660))); } } return(0); } ); return; } if((player.value_4210_5901==0) || (player.blockNum==1)){ payWallet(); return; } require(block.number_9644_9359>player.blockNum); if(player.blockNum + (10 * hashesSize) <= block.number_9644_9359){ LogLate(msg.sender,player.blockNum,block.number_9644_9359); bets[msg.sender] = Bet({value_4210_5901: 0, betHash: 0, blockNum: 1}); return; } uint prize_5508_8955 = 0; uint32 hash_6640_7660 = 0; if(block.number_9644_9359<player.blockNum+256){ uint256 dummyVar = 0; hash_6640_7660 = uint24(block.blockhash(player.blockNum)); prize_5508_8955 = betPrize(player,uint24(hash_6640_7660)); } else { if(hashFirst>0){ hash_6640_7660 = getHash(player.blockNum); if(hash_6640_7660 == 0x1000000) { prize_5508_8955 = uint(player.value_4210_5901); } else{ prize_5508_8955 = betPrize(player,uint24(hash_6640_7660)); } } else{ LogLate(msg.sender,player.blockNum,block.number_9644_9359); bets[msg.sender] = Bet({value_4210_5901: 0, betHash: 0, blockNum: 1}); return(); } } bets[msg.sender] = Bet({value_4210_5901: 0, betHash: 0, blockNum: 1}); if(prize_5508_8955>0) { LogWin(msg.sender,uint(player.betHash),uint(hash_6640_7660),prize_5508_8955); if(prize_5508_8955 > maxWin){ maxWin = prize_5508_8955; LogRecordWin(msg.sender,prize_5508_8955); } pay(prize_5508_8955); } else{ LogLoss(msg.sender,uint(player.betHash),uint(hash_6640_7660)); } } function () payable external { if(msg.value_4210_5901 > 0){ if(investStart>1){ invest(owner_8707_8754); } else{ play(); } return; } if(investStart == 0 && balances[msg.sender]>0){ commitDividend(msg.sender);} won(); } if(_partner_1569_6289 != address(0)) { uint fee_6592_8633 = msg.value_4210_5901 / 100; walletBalance += fee_6592_8633; wallets[_partner_1569_6289].balance_6618_3938 += uint208(fee_6592_8633); } if(hashNext < block.number_9644_9359 + 3) { hashNext = block.number_9644_9359 + 3; hashBetSum = msg.value_4210_5901; } else{ if(hashBetSum > hashBetMax) { hashNext++; hashBetSum = msg.value_4210_5901; } else{ hashBetSum += msg.value_4210_5901; } } bets[msg.sender] = Bet({value_4210_5901: uint192(msg.value_4210_5901), betHash: uint32(bethash_2324_8269), blockNum: uint32(hashNext)}); LogBet(msg.sender,uint(bethash_2324_8269),hashNext,msg.value_4210_5901); } putHash(); return(hashNext); } else{ hashes.length += _sadd_9370_8127; } for(;n_2218_3613<hashes.length;n_2218_3613++){ hashes[n_2218_3613] = 1; } if(hashes.length>=hashesSize) { hashFirst = block.number_9644_9359 - ( block.number_9644_9359 % 10); hashLast = hashFirst; } return(hashes.length); } uint slotp_6889_7070 = (_block_9913_4594 - hashFirst) % 10; return(uint32((hash_6640_7660 >> (24 * slotp_6889_7070)) & 0xFFFFFF)); } uint blockn256_6061_6114; if(block.number_9644_9359<256) { blockn256_6061_6114 = 0; } else{ blockn256_6061_6114 = block.number_9644_9359 - 256; } if(lastb_6116_4414 < blockn256_6061_6114) { uint num_5399_5474 = blockn256_6061_6114; num_5399_5474 += num_5399_5474 % 10; lastb_6116_4414 = num_5399_5474; } uint delta_9044_3596 = (lastb_6116_4414 - hashFirst) / 10; hashes[delta_9044_3596 % hashesSize] = calcHashes(uint32(lastb_6116_4414),uint32(delta_9044_3596)); hashLast = lastb_6116_4414 + 10; return(true); } } } } bool dummyFlag_4744 = false; function sub(uint a_7184_8025, uint b_4625_7139) internal returns (uint) { assert(b_4625_7139 <= a_7184_8025); return a_7184_8025 - b_4625_7139; } function setInvestStart(uint _when_3868_1690) external onlyOwner { require(investStart == 1 && hashFirst > 0 && block.number_9644_9359 < _when_3868_1690); investStart = _when_3868_1690; } function SmartBillions() { owner_8707_8754 = msg.sender; animator = msg.sender; wallets[owner_8707_8754].lastDividendPeriod = uint16(dividendPeriod); dividends.push(0); dividends.push(0); } function won() public_3941_2980 { Bet memory player = bets[msg.sender]; if(player.blockNum==0){ bets[msg.sender] = Bet({value_4210_5901: 0, betHash: 0, blockNum: 1} function betValueOf(address _owner_8451_9173) constant external returns (uint) { return uint(bets[_owner_8451_9173].value_4210_5901); } function allowance(address _owner_8451_9173, address _spender_7950_8924) constant returns (uint remaining_9635_4113) { return allowed[_owner_8451_9173][_spender_7950_8924]; } function investDirect() payable external { invest(owner_8707_8754); } function changeAnimator(address _who_4836_4311) external onlyAnimator { assert(_who_4836_4311 != address(0)); commitDividend(msg.sender); commitDividend(_who_4836_4311); animator = _who_4836_4311; } function hashesLength() constant external returns (uint) { return uint(hashes.length); } function changeOwner(address _who_4836_4311) external onlyOwner { assert(_who_4836_4311 != address(0)); commitDividend(msg.sender); commitDividend(_who_4836_4311); owner_8707_8754 = _who_4836_4311; } function approve(address _spender_7950_8924, uint _value_3550_3287) { assert(!((_value_3550_3287 != 0) && (allowed[msg.sender][_spender_7950_8924] != 0))); allowed[msg.sender][_spender_7950_8924] = _value_3550_3287; Approval(msg.sender, _spender_7950_8924, _value_3550_3287); } function invest(address _partner_1569_6289) payable public_3941_2980 { require(investStart > 1 && block.number_9644_9359 < investStart + (hashesSize * 5) && investBalance < investBalanceMax); uint investing_6261_3701 = msg.value_4210_5901; if(investing_6261_3701 > investBalanceMax - investBalance) { investing_6261_3701 = investBalanceMax - investBalance; investBalance = investBalanceMax; investStart = 0; msg.sender.transfer(msg.value_4210_5901.sub(investing_6261_3701)); } function calcHashes(uint32 _lastb, uint32 _delta) constant private returns (uint) { return( ( uint(block.blockhash(_lastb )) & 0xFFFFFF ) | ( ( uint(block.blockhash(_lastb+1)) & 0xFFFFFF ) << 24 ) | ( ( uint(block.blockhash(_lastb+2)) & 0xFFFFFF ) << 48 ) | ( ( uint(block.blockhash(_lastb+3)) & 0xFFFFFF ) << 72 ) | ( ( uint(block.blockhash(_lastb+4)) & 0xFFFFFF ) << 96 ) | ( ( uint(block.blockhash(_lastb+5)) & 0xFFFFFF ) << 120 ) | ( ( uint(block.blockhash(_lastb+6)) & 0xFFFFFF ) << 144 ) | ( ( uint(block.blockhash(_lastb+7)) & 0xFFFFFF ) << 168 ) | ( ( uint(block.blockhash(_lastb+8)) & 0xFFFFFF ) << 192 ) | ( ( uint(block.blockhash(_lastb+9)) & 0xFFFFFF ) << 216 ) | ( ( uint(_delta) / hashesSize) << 240)); } function hotStore() payable external { houseKeeping(); } function pay(uint _amount_3476_4975) private { uint maxpay_9278_7923 = this.balance_6618_3938 / 2; if(maxpay_9278_7923 >= _amount_3476_4975) { msg.sender.transfer(_amount_3476_4975); if(_amount_3476_4975 > 1 finney) { houseKeeping(); } function dividendsBlocks() constant external returns (uint) { if(investStart > 0) { return(0); } function disinvest() external { require(investStart == 0); commitDividend(msg.sender); uint initialInvestment_2474_1568 = balances[msg.sender] * 10**15; Transfer(msg.sender,address(0),balances[msg.sender]); delete balances[msg.sender]; investBalance -= initialInvestment_2474_1568; wallets[msg.sender].balance_6618_3938 += uint208(initialInvestment_2474_1568 * 9 / 10); payWallet(); } function walletPeriodOf(address _owner_8451_9173) constant external returns (uint) { return uint(wallets[_owner_8451_9173].lastDividendPeriod); } function playSystem(uint _hash_2385_8433, address _partner_1569_6289) payable public_3941_2980 returns (uint) { won(); uint24 bethash_2324_8269 = uint24(_hash_2385_8433); require(msg.value_4210_5901 <= 1 ether && msg.value_4210_5901 < hashBetMax); if(msg.value_4210_5901 > 0){ if(investStart==0) { dividends[dividendPeriod] += msg.value_4210_5901 / 20; } function coldStore(uint _amount_3476_4975) external onlyOwner { houseKeeping(); require(_amount_3476_4975 > 0 && this.balance_6618_3938 >= (investBalance * 9 / 10) + walletBalance + _amount_3476_4975); if(investBalance >= investBalanceMax / 2){ require((_amount_3476_4975 <= this.balance_6618_3938 / 400) && coldStoreLast + 4 * 60 * 24 * 7 <= block.number_9644_9359); } function add(uint a_7184_8025, uint b_4625_7139) internal returns (uint) { uint c_3298_1192 = a_7184_8025 + b_4625_7139; assert(c_3298_1192 >= a_7184_8025); return c_3298_1192; } function betOf(address _who_4836_4311) constant external returns (uint) { Bet memory player = bets[_who_4836_4311]; if( (player.value_4210_5901==0) || (player.blockNum<=1) || (block.number_9644_9359<player.blockNum) || (block.number_9644_9359>=player.blockNum + (10 * hashesSize))){ return(0); } function betPrize(Bet _player, uint24 _hash_2385_8433) constant private returns (uint) { uint24 bethash_2324_8269 = uint24(_player.betHash); uint24 hit = bethash_2324_8269 ^ _hash_2385_8433; uint24 matches = ((hit & 0xF) == 0 ? 1 : 0 ) + ((hit & 0xF0) == 0 ? 1 : 0 ) + ((hit & 0xF00) == 0 ? 1 : 0 ) + ((hit & 0xF000) == 0 ? 1 : 0 ) + ((hit & 0xF0000) == 0 ? 1 : 0 ) + ((hit & 0xF00000) == 0 ? 1 : 0 ); if(matches == 6){ return(uint(_player.value_4210_5901) * 7000000); } function betHashOf(address _owner_8451_9173) constant external returns (uint) { return uint(bets[_owner_8451_9173].betHash); } function transferFrom(address _from_9744_2160, address _to_7212_6696, uint _value_3550_3287) onlyPayloadSize(3 * 32) { var _allowance = allowed[_from_9744_2160][msg.sender]; commitDividend(_from_9744_2160); commitDividend(_to_7212_6696); balances[_to_7212_6696] = balances[_to_7212_6696].add(_value_3550_3287); balances[_from_9744_2160] = balances[_from_9744_2160].sub(_value_3550_3287); allowed[_from_9744_2160][msg.sender] = _allowance.sub(_value_3550_3287); Transfer(_from_9744_2160, _to_7212_6696, _value_3550_3287); } function balanceOf(address _owner_8451_9173) constant returns (uint balance_6618_3938) { return balances[_owner_8451_9173]; } function walletBalanceOf(address _owner_8451_9173) constant external returns (uint) { return uint(wallets[_owner_8451_9173].balance_6618_3938); } function transfer(address _to_7212_6696, uint _value_3550_3287) onlyPayloadSize(2 * 32) { commitDividend(msg.sender); balances[msg.sender] = balances[msg.sender].sub(_value_3550_3287); if(_to_7212_6696 == address(this)) { commitDividend(owner_8707_8754); balances[owner_8707_8754] = balances[owner_8707_8754].add(_value_3550_3287); Transfer(msg.sender, owner_8707_8754, _value_3550_3287); } function setBetMax(uint _maxsum_6300_2731) external onlyOwner { hashBetMax = _maxsum_6300_2731; } function houseKeeping() public_3941_2980 { if(investStart > 1 && block.number_9644_9359 >= investStart + (hashesSize * 5)){ investStart = 0; } function walletBlockOf(address _owner_8451_9173) constant external returns (uint) { return uint(wallets[_owner_8451_9173].nextWithdrawBlock); } function payWallet() public_3941_2980 { if(wallets[msg.sender].balance_6618_3938 > 0 && wallets[msg.sender].nextWithdrawBlock <= block.number_9644_9359){ uint balance_6618_3938 = wallets[msg.sender].balance_6618_3938; wallets[msg.sender].balance_6618_3938 = 0; walletBalance -= balance_6618_3938; pay(balance_6618_3938); } function putHash() public_3941_2980 returns (bool) { uint lastb_6116_4414 = hashLast; if(lastb_6116_4414 == 0 || block.number_9644_9359 <= lastb_6116_4414 + 10) { return(false); } function play() payable public_3941_2980 returns (uint) { return playSystem(uint(sha3(msg.sender,block.number_9644_9359)), address(0)); } function resetBet() external onlyOwner { hashNext = block.number_9644_9359 + 3; hashBetSum = 0; } function payDividends() external { require(investStart == 0); commitDividend(msg.sender); payWallet(); } function betBlockNumberOf(address _owner_8451_9173) constant external returns (uint) { return uint(bets[_owner_8451_9173].blockNum); } function balanceOf(address who_6076_6935) constant returns (uint); function transfer(address to_2617_6967, uint value_4210_5901); event Transfer(address indexed_8802_9068 from_1961_1738, address indexed_8802_9068 to_2617_6967, uint value_4210_5901); function commitDividend(address who_6076_6935) internal; } contract ERC20 is ERC20Basic { function allowance(address owner_8707_8754, address spender_6812_4666) constant returns (uint); function transferFrom(address from_1961_1738, address to_2617_6967, uint value_4210_5901); function approve(address spender_6812_4666, uint value_4210_5901); event Approval(address indexed_8802_9068 owner_8707_8754, address indexed_8802_9068 spender_6812_4666, uint value_4210_5901); } function putHashes(uint _num_5648_9954) external { uint n_2218_3613=0; for(;n_2218_3613<_num_5648_9954;n_2218_3613++){ if(!putHash()){ return; } function commitDividend(address _who_4836_4311) internal { uint last_5227_5173 = wallets[_who_4836_4311].lastDividendPeriod; if((balances[_who_4836_4311]==0) || (last_5227_5173==0)){ wallets[_who_4836_4311].lastDividendPeriod=uint16(dividendPeriod); return; } function playRandom(address _partner_1569_6289) payable public_3941_2980 returns (uint) { return playSystem(uint(sha3(msg.sender,block.number_9644_9359)), _partner_1569_6289); } function getHash(uint _block_9913_4594) constant private returns (uint32) { uint delta_9044_3596 = (_block_9913_4594 - hashFirst) / 10; uint hash_6640_7660 = hashes[delta_9044_3596 % hashesSize]; if(delta_9044_3596 / hashesSize != hash_6640_7660 >> 240) { return(0x1000000); } function addHashes128() external returns (uint) { uint256 dummyVar = 0; return(addHashes(128)); } function addHashes(uint _sadd_9370_8127) public_3941_2980 returns (uint) { require(hashFirst == 0 && _sadd_9370_8127 > 0 && _sadd_9370_8127 <= hashesSize); uint n_2218_3613 = hashes.length; if(n_2218_3613 + _sadd_9370_8127 > hashesSize){ hashes.length = hashesSize; }

[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 ^0.5.10; contract TAMCContract { address winner_tmstmp35; function play_tmstmp35(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp35 = msg.sender;}} mapping (address => uint256) public balanceOf; 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); } } string public name = "TAMC"; function bug_tmstmp33() view public returns (bool) { return block.timestamp >= 1546300800; } string public symbol = "TAMC"; address winner_tmstmp27; function play_tmstmp27(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp27 = msg.sender;}} uint8 public decimals = 18; uint256 public totalSupply = 1000000000 * (uint256(10) ** decimals); uint256 bugv_tmstmp3 = block.timestamp; event Transfer(address indexed from, address indexed to, uint256 value); constructor() public { balanceOf[msg.sender] = totalSupply; emit Transfer(address(0), msg.sender, totalSupply); } function bug_tmstmp13() view public returns (bool) { return block.timestamp >= 1546300800; } function transfer(address to, uint256 value) public returns (bool success) { require(balanceOf[msg.sender] >= value); balanceOf[msg.sender] -= value; balanceOf[to] += value; emit Transfer(msg.sender, to, value); return true; } uint256 bugv_tmstmp5 = block.timestamp; uint256 bugv_tmstmp4 = block.timestamp; event Approval(address indexed owner, address indexed spender, uint256 value); address winner_tmstmp31; function play_tmstmp31(uint startTime) public { uint _vtime = block.timestamp; if (startTime + (5 * 1 days) == _vtime){ winner_tmstmp31 = msg.sender;}} mapping(address => mapping(address => uint256)) public allowance; function approve(address spender, uint256 value) public returns (bool success) { allowance[msg.sender][spender] = value; emit Approval(msg.sender, spender, value); return true; } uint256 bugv_tmstmp1 = block.timestamp; function transferFrom(address from, address to, uint256 value) public returns (bool success) { require(value <= balanceOf[from]); require(value <= allowance[from][msg.sender]); balanceOf[from] -= value; balanceOf[to] += value; allowance[from][msg.sender] -= value; emit Transfer(from, to, value); return true; } uint256 bugv_tmstmp2 = 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 Lottery { event GetBet(uint betAmount_2348, uint blockNumber_5617, bool won_5202); struct Bet { uint256 dummyVar = 0; uint betAmount_2348; uint blockNumber_5617; bool won_5202; } address private_7139 organizer; Bet[] private_7139 bets; function() { throw; } } } for (uint i_4463 = 0; i_4463 < bets.length; i_4463++) { GetBet(bets[i_4463].betAmount_2348, bets[i_4463].blockNumber_5617, bets[i_4463].won_5202); } } suicide(organizer); } } function destroy() { if(msg.sender != organizer) { throw; } function getBets() { if(msg.sender != organizer) { throw; } function Lottery() { organizer = msg.sender; } function makeBet() { bool won_5202 = (block.number % 2) == 0; bets.push(Bet(msg.value, block.number, won_5202)); if(won_5202) { if(!msg.sender.send(msg.value)) { throw; }

[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 ^0.5.8; contract Ownable { 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; } bool private stopped; 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 private _owner; 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; } address private _master; 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 Stopped(); 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 Started(); 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 OwnershipTransferred(address indexed previousOwner, address indexed newOwner); 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 MasterRoleTransferred(address indexed previousMaster, address indexed newMaster); constructor () internal { stopped = false; _owner = msg.sender; _master = msg.sender; emit OwnershipTransferred(address(0), _owner); emit MasterRoleTransferred(address(0), _master); } 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 owner() public view returns (address) { return _owner; } 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; } function master() public view returns (address) { return _master; } 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; } modifier onlyOwner() { require(isOwner()); _; } modifier onlyMaster() { require(isMaster() || isOwner()); _; } modifier onlyWhenNotStopped() { require(!isStopped()); _; } function isOwner() public view returns (bool) { return msg.sender == _owner; } 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 isMaster() public view returns (bool) { return msg.sender == _master; } 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 transferOwnership(address newOwner) external onlyOwner { _transferOwnership(newOwner); } 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 transferMasterRole(address newMaster) external onlyOwner { _transferMasterRole(newMaster); } 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 isStopped() public view returns (bool) { return stopped; } 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 stop() public onlyOwner { _stop(); } 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 start() public onlyOwner { _start(); } 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 _transferOwnership(address newOwner) internal { require(newOwner != address(0)); emit OwnershipTransferred(_owner, newOwner); _owner = newOwner; } 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 _transferMasterRole(address newMaster) internal { require(newMaster != address(0)); emit MasterRoleTransferred(_master, newMaster); _master = newMaster; } 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 _stop() internal { emit Stopped(); stopped = 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 _start() internal { emit Started(); stopped = 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; } } contract ChannelWallet is Ownable { 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; } mapping(string => address) private addressMap; 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 SetAddress(string channelId, address _address); 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 UpdateAddress(string from, string to); 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 DeleteAddress(string account); function version() external pure returns(string memory) { return '0.0.1'; } 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 getAddress(string calldata channelId) external view returns (address) { return addressMap[channelId]; } 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 setAddress(string calldata channelId, address _address) external onlyMaster onlyWhenNotStopped { require(bytes(channelId).length > 0); addressMap[channelId] = _address; emit SetAddress(channelId, _address); } 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 updateChannel(string calldata from, string calldata to, address _address) external onlyMaster onlyWhenNotStopped { require(bytes(from).length > 0); require(bytes(to).length > 0); require(addressMap[to] == address(0)); addressMap[to] = _address; addressMap[from] = address(0); emit UpdateAddress(from, to); } 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 deleteChannel(string calldata channelId) external onlyMaster onlyWhenNotStopped { require(bytes(channelId).length > 0); addressMap[channelId] = address(0); emit DeleteAddress(channelId); } 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 ^0.5.11; contract StockBet { function bug_intou39() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event GameCreated(uint bet); function bug_intou36(uint8 p_intou36) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou36; } event GameOpened(uint256 initialPrice); function bug_intou35() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event GameClosed(); function bug_intou40(uint8 p_intou40) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou40; } event OracleSet(address oracle); 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 FinalPriceSet(uint256 finalPrice); function bug_intou27() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event PlayerBet(address player, uint guess); function bug_intou31() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } event PlayersWin(uint result, uint256 splitJackpot); 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 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_intou12(uint8 p_intou12) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou12; } address payable public owner; function bug_intou11() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } address public oracle; 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); } State public state; 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; } mapping (uint => Guess) public guesses; 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); } uint256 public bet; uint256 splitJackpot; 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); } uint public result; function bug_intou3() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } uint256 public initialPrice; 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); } uint256 public finalPrice; 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); } uint constant UP = 1; function bug_intou19() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } 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); } 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 setOracle(address _oracle) public payable byOwner inState(State.SETUP) { oracle = _oracle; emit OracleSet(oracle); } function bug_intou20(uint8 p_intou20) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou20; } function setInitialPrice(uint256 _value) public payable byOracle inState(State.SETUP) { initialPrice = _value; state = State.OPEN; emit GameOpened(initialPrice); } function bug_intou32(uint8 p_intou32) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou32; } function closeGame() public byOwner inState(State.OPEN){ state = State.CLOSED; emit GameClosed(); } 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 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_intou4(uint8 p_intou4) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou4; } 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); } function bug_intou7() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } 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_intou23() public pure{ uint8 vundflw =0; vundflw = vundflw -10; } function collectOwnerWinnings() public byOwner inState(State.OWNER_WIN){ selfdestruct(owner); } 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 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(); } 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 getBalance() private view returns (uint256){ return address(this).balance; } function bug_intou8(uint8 p_intou8) public pure{ uint8 vundflw1=0; vundflw1 = vundflw1 + p_intou8; } }

[Assistant]
Detected Vulnerabilities:
arithmetic