{
  "contractName": "GnosisSafePersonalEdition",
  "abi": [
    {
      "constant": true,
      "inputs": [
        {
          "name": "owner",
          "type": "address"
        }
      ],
      "name": "isOwner",
      "outputs": [
        {
          "name": "",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        },
        {
          "name": "data",
          "type": "bytes"
        },
        {
          "name": "operation",
          "type": "uint8"
        }
      ],
      "name": "execTransactionFromModule",
      "outputs": [
        {
          "name": "success",
          "type": "bool"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "module",
          "type": "address"
        }
      ],
      "name": "enableModule",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "_masterCopy",
          "type": "address"
        }
      ],
      "name": "changeMasterCopy",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "SENTINEL_MODULES",
      "outputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "prevOwner",
          "type": "address"
        },
        {
          "name": "owner",
          "type": "address"
        },
        {
          "name": "_threshold",
          "type": "uint8"
        }
      ],
      "name": "removeOwner",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "SENTINEL_OWNERS",
      "outputs": [
        {
          "name": "",
          "type": "address"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "_owners",
          "type": "address[]"
        },
        {
          "name": "_threshold",
          "type": "uint8"
        },
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "data",
          "type": "bytes"
        }
      ],
      "name": "setup",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "getOwners",
      "outputs": [
        {
          "name": "",
          "type": "address[]"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "NAME",
      "outputs": [
        {
          "name": "",
          "type": "string"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "nonce",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "getModules",
      "outputs": [
        {
          "name": "",
          "type": "address[]"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "_threshold",
          "type": "uint8"
        }
      ],
      "name": "changeThreshold",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "owner",
          "type": "address"
        },
        {
          "name": "_threshold",
          "type": "uint8"
        }
      ],
      "name": "addOwnerWithThreshold",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "prevModule",
          "type": "address"
        },
        {
          "name": "module",
          "type": "address"
        }
      ],
      "name": "disableModule",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "prevOwner",
          "type": "address"
        },
        {
          "name": "oldOwner",
          "type": "address"
        },
        {
          "name": "newOwner",
          "type": "address"
        }
      ],
      "name": "swapOwner",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "getThreshold",
      "outputs": [
        {
          "name": "",
          "type": "uint8"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [],
      "name": "VERSION",
      "outputs": [
        {
          "name": "",
          "type": "string"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    },
    {
      "payable": true,
      "stateMutability": "payable",
      "type": "fallback"
    },
    {
      "anonymous": false,
      "inputs": [],
      "name": "ExecutionFailed",
      "type": "event"
    },
    {
      "anonymous": false,
      "inputs": [
        {
          "indexed": false,
          "name": "newContract",
          "type": "address"
        }
      ],
      "name": "ContractCreation",
      "type": "event"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        },
        {
          "name": "data",
          "type": "bytes"
        },
        {
          "name": "operation",
          "type": "uint8"
        },
        {
          "name": "safeTxGas",
          "type": "uint256"
        },
        {
          "name": "dataGas",
          "type": "uint256"
        },
        {
          "name": "gasPrice",
          "type": "uint256"
        },
        {
          "name": "v",
          "type": "uint8[]"
        },
        {
          "name": "r",
          "type": "bytes32[]"
        },
        {
          "name": "s",
          "type": "bytes32[]"
        }
      ],
      "name": "execPayTransaction",
      "outputs": [],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "executionGas",
          "type": "uint256"
        },
        {
          "name": "dataGas",
          "type": "uint256"
        }
      ],
      "name": "totalGasCosts",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "pure",
      "type": "function"
    },
    {
      "constant": false,
      "inputs": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        },
        {
          "name": "data",
          "type": "bytes"
        },
        {
          "name": "operation",
          "type": "uint8"
        }
      ],
      "name": "requiredTxGas",
      "outputs": [
        {
          "name": "",
          "type": "uint256"
        }
      ],
      "payable": false,
      "stateMutability": "nonpayable",
      "type": "function"
    },
    {
      "constant": true,
      "inputs": [
        {
          "name": "to",
          "type": "address"
        },
        {
          "name": "value",
          "type": "uint256"
        },
        {
          "name": "data",
          "type": "bytes"
        },
        {
          "name": "operation",
          "type": "uint8"
        },
        {
          "name": "safeTxGas",
          "type": "uint256"
        },
        {
          "name": "dataGas",
          "type": "uint256"
        },
        {
          "name": "gasPrice",
          "type": "uint256"
        },
        {
          "name": "_nonce",
          "type": "uint256"
        }
      ],
      "name": "getTransactionHash",
      "outputs": [
        {
          "name": "",
          "type": "bytes32"
        }
      ],
      "payable": false,
      "stateMutability": "view",
      "type": "function"
    }
  ],
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  "source": "pragma solidity 0.4.23;\nimport \"./GnosisSafe.sol\";\nimport \"./MasterCopy.sol\";\n\n\n/// @title Gnosis Safe Personal Edition - A multisignature wallet with support for confirmations using signed messages based on ERC191.\n/// @author Stefan George - <stefan@gnosis.pm>\n/// @author Richard Meissner - <richard@gnosis.pm>\ncontract GnosisSafePersonalEdition is MasterCopy, GnosisSafe {\n\n    string public constant NAME = \"Gnosis Safe Personal Edition\";\n    string public constant VERSION = \"0.0.1\";\n    \n    uint256 internal constant BASE_TX_GAS_COSTS = 21000;\n    uint256 internal constant PAYMENT_GAS_COSTS = 11000;\n\n    event ExecutionFailed();\n\n    uint256 public nonce;\n\n    /// @dev Allows to execute a Safe transaction confirmed by required number of owners.\n    /// @param to Destination address of Safe transaction.\n    /// @param value Ether value of Safe transaction.\n    /// @param data Data payload of Safe transaction.\n    /// @param operation Operation type of Safe transaction.\n    /// @param safeTxGas Gas that should be used for the Safe transaction.\n    /// @param dataGas Gas costs for data used to trigger the safe transaction.\n    /// @param gasPrice Gas price that should be used for the payment calculation.\n    /// @param v Array of signature V values sorted by owner addresses.\n    /// @param r Array of signature R values sorted by owner addresses.\n    /// @param s Array of signature S values sorted by owner addresses.\n    function execPayTransaction(\n        address to, \n        uint256 value, \n        bytes data, \n        Enum.Operation operation, \n        uint256 safeTxGas,\n        uint256 dataGas,\n        uint256 gasPrice,\n        uint8[] v, \n        bytes32[] r, \n        bytes32[] s\n    )\n        public\n    {\n        uint256 startGas = gasleft();\n        checkHash(getTransactionHash(to, value, data, operation, safeTxGas, dataGas, gasPrice, nonce), v, r, s);\n        // Increase nonce and execute transaction.\n        nonce++;\n        require(gasleft() - PAYMENT_GAS_COSTS >= safeTxGas);\n        if (!execute(to, value, data, operation, safeTxGas)) {\n            emit ExecutionFailed();\n        }\n        uint256 gasCosts = totalGasCosts(startGas - gasleft(), dataGas);\n\n        // We transfer the calculated tx costs to the tx.origin to avoid sending it to intermediate contracts that have made calls\n        // solium-disable-next-line security/no-tx-origin\n        tx.origin.transfer(gasCosts * gasPrice);\n    }\n\n    /// @dev Calculates the total gas costs for a safe transaction with the gas costs for the execution of the transaction.\n    /// @param executionGas Gas costs for the execution of the safe transaction.\n    /// @param dataGas Gas costs for data used to trigger the safe transaction.\n    /// @return Total gas costs for the execution (this includes gas costs for the payment to tx.origin, base transaction and payload data).\n    function totalGasCosts(uint256 executionGas, uint256 dataGas) \n        public \n        pure\n        returns (uint256) \n    {\n        return executionGas + dataGas + PAYMENT_GAS_COSTS + BASE_TX_GAS_COSTS;\n    }\n\n    /// @dev Allows to estimate a Safe transaction. \n    ///      This method can only be used by the safe itself in a transaction. When estimating set `from` to the address of the safe.\n    ///      Since the `estimateGas` function includes refunds, call this method to get an estimated of the costs that are deducted from the safe with `execPayTransaction`\n    /// @param to Destination address of Safe transaction.\n    /// @param value Ether value of Safe transaction.\n    /// @param data Data payload of Safe transaction.\n    /// @param operation Operation type of Safe transaction.\n    /// @return Estimate without refunds and overhead fees (base transaction and payload data gas costs).\n    function requiredTxGas(address to, uint256 value, bytes data, Enum.Operation operation)\n        public\n        authorized\n        returns (uint256)\n    {\n        uint256 startGas = gasleft();\n        require(execute(to, value, data, operation, gasleft()));\n        return startGas - gasleft();\n    }\n\n    function checkHash(bytes32 hash, uint8[] v, bytes32[] r, bytes32[] s)\n        internal\n        view\n    {\n        // There cannot be an owner with address 0.\n        address lastOwner = address(0);\n        address currentOwner;\n        uint256 i;\n        // Validate threshold is reached.\n        for (i = 0; i < threshold; i++) {\n            currentOwner = ecrecover(hash, v[i], r[i], s[i]);\n            require(owners[currentOwner] != 0);\n            require(currentOwner > lastOwner);\n            lastOwner = currentOwner;\n        }\n    }\n\n    /// @dev Returns hash to be signed by owners.\n    /// @param to Destination address.\n    /// @param value Ether value.\n    /// @param data Data payload.\n    /// @param operation Operation type.\n    /// @param safeTxGas Fas that should be used for the safe transaction.\n    /// @param dataGas Gas costs for data used to trigger the safe transaction.\n    /// @param gasPrice Maximum gas price that should be used for this transaction.\n    /// @param _nonce Transaction nonce.\n    /// @return Transaction hash.\n    function getTransactionHash(\n        address to, \n        uint256 value, \n        bytes data, \n        Enum.Operation operation, \n        uint256 safeTxGas, \n        uint256 dataGas, \n        uint256 gasPrice, \n        uint256 _nonce\n    )\n        public\n        view\n        returns (bytes32)\n    {\n        return keccak256(byte(0x19), byte(0), this, to, value, data, operation, safeTxGas, dataGas, gasPrice, _nonce);\n    }\n}\n",
  "sourcePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/GnosisSafePersonalEdition.sol",
  "ast": {
    "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/GnosisSafePersonalEdition.sol",
    "exportedSymbols": {
      "GnosisSafePersonalEdition": [
        324
      ]
    },
    "id": 325,
    "nodeType": "SourceUnit",
    "nodes": [
      {
        "id": 41,
        "literals": [
          "solidity",
          "0.4",
          ".23"
        ],
        "nodeType": "PragmaDirective",
        "src": "0:23:2"
      },
      {
        "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/GnosisSafe.sol",
        "file": "./GnosisSafe.sol",
        "id": 42,
        "nodeType": "ImportDirective",
        "scope": 325,
        "sourceUnit": 40,
        "src": "24:26:2",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "absolutePath": "/Users/apanizo/git/gnosis/safe-contracts/contracts/MasterCopy.sol",
        "file": "./MasterCopy.sol",
        "id": 43,
        "nodeType": "ImportDirective",
        "scope": 325,
        "sourceUnit": 581,
        "src": "51:26:2",
        "symbolAliases": [],
        "unitAlias": ""
      },
      {
        "baseContracts": [
          {
            "arguments": null,
            "baseName": {
              "contractScope": null,
              "id": 44,
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