sanity for TimelockController and Votes

certora/munged/proxy/utils/Initializable.sol

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+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol)
+
+pragma solidity ^0.8.0;
+
+import "../../utils/Address.sol";
+
+/**
+ * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
+ * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
+ * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
+ * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
+ *
+ * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
+ * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
+ *
+ * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
+ * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
+ *
+ * [CAUTION]
+ * ====
+ * Avoid leaving a contract uninitialized.
+ *
+ * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
+ * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
+ * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
+ *
+ * [.hljs-theme-light.nopadding]
+ * ```
+ * /// @custom:oz-upgrades-unsafe-allow constructor
+ * constructor() initializer {}
+ * ```
+ * ====
+ */
+abstract contract Initializable {
+    /**
+     * @dev Indicates that the contract has been initialized.
+     */
+    bool private _initialized;
+
+    /**
+     * @dev Indicates that the contract is in the process of being initialized.
+     */
+    bool private _initializing;
+
+    /**
+     * @dev Modifier to protect an initializer function from being invoked twice.
+     */
+    modifier initializer() {
+        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
+        // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
+        // contract may have been reentered.
+        require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");
+
+        bool isTopLevelCall = !_initializing;
+        if (isTopLevelCall) {
+            _initializing = true;
+            _initialized = true;
+        }
+
+        _;
+
+        if (isTopLevelCall) {
+            _initializing = false;
+        }
+    }
+
+    /**
+     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
+     * {initializer} modifier, directly or indirectly.
+     */
+    modifier onlyInitializing() {
+        require(_initializing, "Initializable: contract is not initializing");
+        _;
+    }
+
+    function _isConstructor() private view returns (bool) {
+        return !Address.isContract(address(this));
+    }
+}