sanity for TimelockController and Votes

certora/munged/mocks/SingleInheritanceInitializableMocks.sol

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+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.0;
+
+import "../proxy/utils/Initializable.sol";
+
+/**
+ * @title MigratableMockV1
+ * @dev This contract is a mock to test initializable functionality through migrations
+ */
+contract MigratableMockV1 is Initializable {
+    uint256 public x;
+
+    function initialize(uint256 value) public payable initializer {
+        x = value;
+    }
+}
+
+/**
+ * @title MigratableMockV2
+ * @dev This contract is a mock to test migratable functionality with params
+ */
+contract MigratableMockV2 is MigratableMockV1 {
+    bool internal _migratedV2;
+    uint256 public y;
+
+    function migrate(uint256 value, uint256 anotherValue) public payable {
+        require(!_migratedV2);
+        x = value;
+        y = anotherValue;
+        _migratedV2 = true;
+    }
+}
+
+/**
+ * @title MigratableMockV3
+ * @dev This contract is a mock to test migratable functionality without params
+ */
+contract MigratableMockV3 is MigratableMockV2 {
+    bool internal _migratedV3;
+
+    function migrate() public payable {
+        require(!_migratedV3);
+        uint256 oldX = x;
+        x = y;
+        y = oldX;
+        _migratedV3 = true;
+    }
+}