fix tests

Author: Amxx

Diff for: test/utils/Memory.t.sol

@@ -8,7 +8,11 @@ import {Memory} from "@openzeppelin/contracts/utils/Memory.sol";
 contract MemoryTest is Test {
     using Memory for *;
 
-    function testSymbolicGetSetFreePointer(bytes32 ptr) public {
+    function testSymbolicGetSetFreePointer(uint256 seed) public {
+        // - first 0x80 bytes are reserved (scratch + FMP + zero)
+        // - moving the free memory pointer to far causes OOG errors
+        bytes32 ptr = bytes32(bound(seed, 0x80, type(uint24).max));
+
         Memory.setFreePointer(ptr.asPointer());
         assertEq(Memory.getFreePointer().asBytes32(), ptr);
     }