// Vulnerability label: clean
pragma solidity ^0.4.11;
library SafeMath {
  function mul(uint a, uint b) internal returns (uint) {
    uint c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }
  function div(uint a, uint b) internal returns (uint) {
    assert(b > 0);
    uint c = a / b;
    assert(a == b * c + a % b);
    return c;
  }
  function sub(uint a, uint b) internal returns (uint) {
    assert(b <= a);
    return a - b;
  }
  function add(uint a, uint b) internal returns (uint) {
    uint c = a + b;
    assert(c >= a);
    return c;
  }
  function max64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a >= b ? a : b;
  }
  function min64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a < b ? a : b;
  }
  function max256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a >= b ? a : b;
  }
  function min256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a < b ? a : b;
  }
  function assert(bool assertion) internal {
    if (!assertion) {
      throw;
    }
  }
}
contract Ownable {
    address public owner;
    function Ownable() {
        owner = msg.sender;
    }
    modifier onlyOwner {
        if (msg.sender != owner) throw;
        _;
    }
    function transferOwnership(address newOwner) onlyOwner {
        if (newOwner != address(0)) {
            owner = newOwner;
        }
    }
}
/*
 * Pausable
 * Abstract contract that allows children to implement an
 * emergency stop mechanism.
 */
contract Pausable is Ownable {
  bool public stopped;
  modifier stopInEmergency {
    if (stopped) {
      throw;
    }
    _;
  }
  
  modifier onlyInEmergency {
    if (!stopped) {
      throw;
    }
    _;
  }
  // called by the owner on emergency, triggers stopped state
  function emergencyStop() external onlyOwner {
    stopped = true;
  }
  // called by the owner on end of emergency, returns to normal state
  function release() external onlyOwner onlyInEmergency {
    stopped = false;
  }
}
contract ERC20Basic {
  uint public totalSupply;
  function balanceOf(address who) constant returns (uint);
  function transfer(address to, uint value);
  event Transfer(address indexed from, address indexed to, uint value);
}
contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) constant returns (uint);
  function transferFrom(address from, address to, uint value);
  function approve(address spender, uint value);
  event Approval(address indexed owner, address indexed spender, uint value);
}
/*
 * PullPayment
 * Base contract supporting async send for pull payments.
 * Inherit from this contract and use asyncSend instead of send.
 */
contract PullPayment {
  using SafeMath for uint;
  
  mapping(address => uint) public payments;
  event LogRefundETH(address to, uint value);
  /**
  *  Store sent amount as credit to be pulled, called by payer 
  **/
  function asyncSend(address dest, uint amount) internal {
    payments[dest] = payments[dest].add(amount);
  }
  // withdraw accumulated balance, called by payee
  function withdrawPayments() {
    address payee = msg.sender;
    uint payment = payments[payee];
    
    if (payment == 0) {
      throw;
    }
    if (this.balance < payment) {
      throw;
    }
    payments[payee] = 0;
    if (!payee.send(payment)) {
      throw;
    }
    LogRefundETH(payee,payment);
  }
}
contract BasicToken is ERC20Basic {
  
  using SafeMath for uint;
  
  mapping(address => uint) balances;
  address[] public customerAddress;
  
  function size() public returns (uint) {
    return customerAddress.length;
  }
  
  /*
   * Fix for the ERC20 short address attack  
  */
  modifier onlyPayloadSize(uint size) {
     if(msg.data.length < size + 4) {
       throw;
     }
     _;
  }
  function transfer(address _to, uint _value) onlyPayloadSize(2 * 32) {
    if(balances[_to] == 0){
        customerAddress.push(_to); 
    }
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
  }
  function balanceOf(address _owner) constant returns (uint balance) {
    return balances[_owner];
  }
}
contract StandardToken is BasicToken, ERC20 {
  mapping (address => mapping (address => uint)) allowed;
  function transferFrom(address _from, address _to, uint _value) onlyPayloadSize(3 * 32) {
    if(balances[_to] == 0){
        customerAddress.push(_to); 
    }
    var _allowance = allowed[_from][msg.sender];
    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
    // if (_value > _allowance) throw;
    balances[_to] = balances[_to].add(_value);
    balances[_from] = balances[_from].sub(_value);
    allowed[_from][msg.sender] = _allowance.sub(_value);
    Transfer(_from, _to, _value);
  }
  function approve(address _spender, uint _value) {
    // To change the approve amount you first have to reduce the addresses`
    //  allowance to zero by calling `approve(_spender, 0)` if it is not
    //  already 0 to mitigate the race condition described here:
    //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
    if ((_value != 0) && (allowed[msg.sender][_spender] != 0)) throw;
    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
  }
  function allowance(address _owner, address _spender) constant returns (uint remaining) {
    return allowed[_owner][_spender];
  }
}
/**
 *  AntCoin token contract. Implements
 */
contract AntCoin is StandardToken, Ownable {
  string public constant name = "AntCoin";
  string public constant symbol = "ANTC";
  uint public constant decimals = 18;
  
  // Constructor
  function AntCoin() {
      totalSupply = 10000000000000000000000000000; // 10,000,000,000 coins in total 
      balances[msg.sender] = totalSupply; // Send all tokens to owner
  }
  /**
   *  Burn away the specified amount of Ant Coins
   */
  function burn(uint _value) onlyOwner returns (bool) {
    balances[msg.sender] = balances[msg.sender].sub(_value);
    totalSupply = totalSupply.sub(_value);
    Transfer(msg.sender, 0x0, _value);
    return true;
  }

  function withdraw() onlyOwner payable {
    owner.send(this.balance);
  }
}