git.delta.rocks / unique-network / refs/commits / a17a394f7712

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/README.md
@@ -0,0 +1,12 @@
+# OpenZeppelin Contracts
+
+The files in this directory were sourced unmodified from OpenZeppelin Contracts v4.8.1.
+
+They are not meant to be edited.
+
+The originals can be found on [GitHub] and [npm].
+
+[GitHub]: https://github.com/OpenZeppelin/openzeppelin-contracts/tree/v4.8.1
+[npm]: https://www.npmjs.com/package/@openzeppelin/contracts/v/4.8.1
+
+Generated with OpenZeppelin Contracts Wizard (https://zpl.in/wizard).

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/access/Ownable.sol
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
+
+pragma solidity ^0.8.0;
+
+import "../utils/Context.sol";
+
+/**
+ * @dev Contract module which provides a basic access control mechanism, where
+ * there is an account (an owner) that can be granted exclusive access to
+ * specific functions.
+ *
+ * By default, the owner account will be the one that deploys the contract. This
+ * can later be changed with {transferOwnership}.
+ *
+ * This module is used through inheritance. It will make available the modifier
+ * `onlyOwner`, which can be applied to your functions to restrict their use to
+ * the owner.
+ */
+abstract contract Ownable is Context {
+    address private _owner;
+
+    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
+
+    /**
+     * @dev Initializes the contract setting the deployer as the initial owner.
+     */
+    constructor() {
+        _transferOwnership(_msgSender());
+    }
+
+    /**
+     * @dev Throws if called by any account other than the owner.
+     */
+    modifier onlyOwner() {
+        _checkOwner();
+        _;
+    }
+
+    /**
+     * @dev Returns the address of the current owner.
+     */
+    function owner() public view virtual returns (address) {
+        return _owner;
+    }
+
+    /**
+     * @dev Throws if the sender is not the owner.
+     */
+    function _checkOwner() internal view virtual {
+        require(owner() == _msgSender(), "Ownable: caller is not the owner");
+    }
+
+    /**
+     * @dev Leaves the contract without owner. It will not be possible to call
+     * `onlyOwner` functions anymore. Can only be called by the current owner.
+     *
+     * NOTE: Renouncing ownership will leave the contract without an owner,
+     * thereby removing any functionality that is only available to the owner.
+     */
+    function renounceOwnership() public virtual onlyOwner {
+        _transferOwnership(address(0));
+    }
+
+    /**
+     * @dev Transfers ownership of the contract to a new account (`newOwner`).
+     * Can only be called by the current owner.
+     */
+    function transferOwnership(address newOwner) public virtual onlyOwner {
+        require(newOwner != address(0), "Ownable: new owner is the zero address");
+        _transferOwnership(newOwner);
+    }
+
+    /**
+     * @dev Transfers ownership of the contract to a new account (`newOwner`).
+     * Internal function without access restriction.
+     */
+    function _transferOwnership(address newOwner) internal virtual {
+        address oldOwner = _owner;
+        _owner = newOwner;
+        emit OwnershipTransferred(oldOwner, newOwner);
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/ERC721.sol
@@ -0,0 +1,503 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)
+
+pragma solidity ^0.8.0;
+
+import "./IERC721.sol";
+import "./IERC721Receiver.sol";
+import "./extensions/IERC721Metadata.sol";
+import "../../utils/Address.sol";
+import "../../utils/Context.sol";
+import "../../utils/Strings.sol";
+import "../../utils/introspection/ERC165.sol";
+
+/**
+ * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
+ * the Metadata extension, but not including the Enumerable extension, which is available separately as
+ * {ERC721Enumerable}.
+ */
+contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
+    using Address for address;
+    using Strings for uint256;
+
+    // Token name
+    string private _name;
+
+    // Token symbol
+    string private _symbol;
+
+    // Mapping from token ID to owner address
+    mapping(uint256 => address) private _owners;
+
+    // Mapping owner address to token count
+    mapping(address => uint256) private _balances;
+
+    // Mapping from token ID to approved address
+    mapping(uint256 => address) private _tokenApprovals;
+
+    // Mapping from owner to operator approvals
+    mapping(address => mapping(address => bool)) private _operatorApprovals;
+
+    /**
+     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
+     */
+    constructor(string memory name_, string memory symbol_) {
+        _name = name_;
+        _symbol = symbol_;
+    }
+
+    /**
+     * @dev See {IERC165-supportsInterface}.
+     */
+    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
+        return
+            interfaceId == type(IERC721).interfaceId ||
+            interfaceId == type(IERC721Metadata).interfaceId ||
+            super.supportsInterface(interfaceId);
+    }
+
+    /**
+     * @dev See {IERC721-balanceOf}.
+     */
+    function balanceOf(address owner) public view virtual override returns (uint256) {
+        require(owner != address(0), "ERC721: address zero is not a valid owner");
+        return _balances[owner];
+    }
+
+    /**
+     * @dev See {IERC721-ownerOf}.
+     */
+    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
+        address owner = _ownerOf(tokenId);
+        require(owner != address(0), "ERC721: invalid token ID");
+        return owner;
+    }
+
+    /**
+     * @dev See {IERC721Metadata-name}.
+     */
+    function name() public view virtual override returns (string memory) {
+        return _name;
+    }
+
+    /**
+     * @dev See {IERC721Metadata-symbol}.
+     */
+    function symbol() public view virtual override returns (string memory) {
+        return _symbol;
+    }
+
+    /**
+     * @dev See {IERC721Metadata-tokenURI}.
+     */
+    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
+        _requireMinted(tokenId);
+
+        string memory baseURI = _baseURI();
+        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
+    }
+
+    /**
+     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
+     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
+     * by default, can be overridden in child contracts.
+     */
+    function _baseURI() internal view virtual returns (string memory) {
+        return "";
+    }
+
+    /**
+     * @dev See {IERC721-approve}.
+     */
+    function approve(address to, uint256 tokenId) public virtual override {
+        address owner = ERC721.ownerOf(tokenId);
+        require(to != owner, "ERC721: approval to current owner");
+
+        require(
+            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
+            "ERC721: approve caller is not token owner or approved for all"
+        );
+
+        _approve(to, tokenId);
+    }
+
+    /**
+     * @dev See {IERC721-getApproved}.
+     */
+    function getApproved(uint256 tokenId) public view virtual override returns (address) {
+        _requireMinted(tokenId);
+
+        return _tokenApprovals[tokenId];
+    }
+
+    /**
+     * @dev See {IERC721-setApprovalForAll}.
+     */
+    function setApprovalForAll(address operator, bool approved) public virtual override {
+        _setApprovalForAll(_msgSender(), operator, approved);
+    }
+
+    /**
+     * @dev See {IERC721-isApprovedForAll}.
+     */
+    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
+        return _operatorApprovals[owner][operator];
+    }
+
+    /**
+     * @dev See {IERC721-transferFrom}.
+     */
+    function transferFrom(
+        address from,
+        address to,
+        uint256 tokenId
+    ) public virtual override {
+        //solhint-disable-next-line max-line-length
+        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
+
+        _transfer(from, to, tokenId);
+    }
+
+    /**
+     * @dev See {IERC721-safeTransferFrom}.
+     */
+    function safeTransferFrom(
+        address from,
+        address to,
+        uint256 tokenId
+    ) public virtual override {
+        safeTransferFrom(from, to, tokenId, "");
+    }
+
+    /**
+     * @dev See {IERC721-safeTransferFrom}.
+     */
+    function safeTransferFrom(
+        address from,
+        address to,
+        uint256 tokenId,
+        bytes memory data
+    ) public virtual override {
+        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
+        _safeTransfer(from, to, tokenId, data);
+    }
+
+    /**
+     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
+     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
+     *
+     * `data` is additional data, it has no specified format and it is sent in call to `to`.
+     *
+     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
+     * implement alternative mechanisms to perform token transfer, such as signature-based.
+     *
+     * Requirements:
+     *
+     * - `from` cannot be the zero address.
+     * - `to` cannot be the zero address.
+     * - `tokenId` token must exist and be owned by `from`.
+     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
+     *
+     * Emits a {Transfer} event.
+     */
+    function _safeTransfer(
+        address from,
+        address to,
+        uint256 tokenId,
+        bytes memory data
+    ) internal virtual {
+        _transfer(from, to, tokenId);
+        require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
+    }
+
+    /**
+     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
+     */
+    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
+        return _owners[tokenId];
+    }
+
+    /**
+     * @dev Returns whether `tokenId` exists.
+     *
+     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
+     *
+     * Tokens start existing when they are minted (`_mint`),
+     * and stop existing when they are burned (`_burn`).
+     */
+    function _exists(uint256 tokenId) internal view virtual returns (bool) {
+        return _ownerOf(tokenId) != address(0);
+    }
+
+    /**
+     * @dev Returns whether `spender` is allowed to manage `tokenId`.
+     *
+     * Requirements:
+     *
+     * - `tokenId` must exist.
+     */
+    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
+        address owner = ERC721.ownerOf(tokenId);
+        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
+    }
+
+    /**
+     * @dev Safely mints `tokenId` and transfers it to `to`.
+     *
+     * Requirements:
+     *
+     * - `tokenId` must not exist.
+     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
+     *
+     * Emits a {Transfer} event.
+     */
+    function _safeMint(address to, uint256 tokenId) internal virtual {
+        _safeMint(to, tokenId, "");
+    }
+
+    /**
+     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
+     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
+     */
+    function _safeMint(
+        address to,
+        uint256 tokenId,
+        bytes memory data
+    ) internal virtual {
+        _mint(to, tokenId);
+        require(
+            _checkOnERC721Received(address(0), to, tokenId, data),
+            "ERC721: transfer to non ERC721Receiver implementer"
+        );
+    }
+
+    /**
+     * @dev Mints `tokenId` and transfers it to `to`.
+     *
+     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
+     *
+     * Requirements:
+     *
+     * - `tokenId` must not exist.
+     * - `to` cannot be the zero address.
+     *
+     * Emits a {Transfer} event.
+     */
+    function _mint(address to, uint256 tokenId) internal virtual {
+        require(to != address(0), "ERC721: mint to the zero address");
+        require(!_exists(tokenId), "ERC721: token already minted");
+
+        _beforeTokenTransfer(address(0), to, tokenId, 1);
+
+        // Check that tokenId was not minted by `_beforeTokenTransfer` hook
+        require(!_exists(tokenId), "ERC721: token already minted");
+
+        unchecked {
+            // Will not overflow unless all 2**256 token ids are minted to the same owner.
+            // Given that tokens are minted one by one, it is impossible in practice that
+            // this ever happens. Might change if we allow batch minting.
+            // The ERC fails to describe this case.
+            _balances[to] += 1;
+        }
+
+        _owners[tokenId] = to;
+
+        emit Transfer(address(0), to, tokenId);
+
+        _afterTokenTransfer(address(0), to, tokenId, 1);
+    }
+
+    /**
+     * @dev Destroys `tokenId`.
+     * The approval is cleared when the token is burned.
+     * This is an internal function that does not check if the sender is authorized to operate on the token.
+     *
+     * Requirements:
+     *
+     * - `tokenId` must exist.
+     *
+     * Emits a {Transfer} event.
+     */
+    function _burn(uint256 tokenId) internal virtual {
+        address owner = ERC721.ownerOf(tokenId);
+
+        _beforeTokenTransfer(owner, address(0), tokenId, 1);
+
+        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
+        owner = ERC721.ownerOf(tokenId);
+
+        // Clear approvals
+        delete _tokenApprovals[tokenId];
+
+        unchecked {
+            // Cannot overflow, as that would require more tokens to be burned/transferred
+            // out than the owner initially received through minting and transferring in.
+            _balances[owner] -= 1;
+        }
+        delete _owners[tokenId];
+
+        emit Transfer(owner, address(0), tokenId);
+
+        _afterTokenTransfer(owner, address(0), tokenId, 1);
+    }
+
+    /**
+     * @dev Transfers `tokenId` from `from` to `to`.
+     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
+     *
+     * Requirements:
+     *
+     * - `to` cannot be the zero address.
+     * - `tokenId` token must be owned by `from`.
+     *
+     * Emits a {Transfer} event.
+     */
+    function _transfer(
+        address from,
+        address to,
+        uint256 tokenId
+    ) internal virtual {
+        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
+        require(to != address(0), "ERC721: transfer to the zero address");
+
+        _beforeTokenTransfer(from, to, tokenId, 1);
+
+        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook
+        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
+
+        // Clear approvals from the previous owner
+        delete _tokenApprovals[tokenId];
+
+        unchecked {
+            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:
+            // `from`'s balance is the number of token held, which is at least one before the current
+            // transfer.
+            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require
+            // all 2**256 token ids to be minted, which in practice is impossible.
+            _balances[from] -= 1;
+            _balances[to] += 1;
+        }
+        _owners[tokenId] = to;
+
+        emit Transfer(from, to, tokenId);
+
+        _afterTokenTransfer(from, to, tokenId, 1);
+    }
+
+    /**
+     * @dev Approve `to` to operate on `tokenId`
+     *
+     * Emits an {Approval} event.
+     */
+    function _approve(address to, uint256 tokenId) internal virtual {
+        _tokenApprovals[tokenId] = to;
+        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
+    }
+
+    /**
+     * @dev Approve `operator` to operate on all of `owner` tokens
+     *
+     * Emits an {ApprovalForAll} event.
+     */
+    function _setApprovalForAll(
+        address owner,
+        address operator,
+        bool approved
+    ) internal virtual {
+        require(owner != operator, "ERC721: approve to caller");
+        _operatorApprovals[owner][operator] = approved;
+        emit ApprovalForAll(owner, operator, approved);
+    }
+
+    /**
+     * @dev Reverts if the `tokenId` has not been minted yet.
+     */
+    function _requireMinted(uint256 tokenId) internal view virtual {
+        require(_exists(tokenId), "ERC721: invalid token ID");
+    }
+
+    /**
+     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
+     * The call is not executed if the target address is not a contract.
+     *
+     * @param from address representing the previous owner of the given token ID
+     * @param to target address that will receive the tokens
+     * @param tokenId uint256 ID of the token to be transferred
+     * @param data bytes optional data to send along with the call
+     * @return bool whether the call correctly returned the expected magic value
+     */
+    function _checkOnERC721Received(
+        address from,
+        address to,
+        uint256 tokenId,
+        bytes memory data
+    ) private returns (bool) {
+        if (to.isContract()) {
+            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
+                return retval == IERC721Receiver.onERC721Received.selector;
+            } catch (bytes memory reason) {
+                if (reason.length == 0) {
+                    revert("ERC721: transfer to non ERC721Receiver implementer");
+                } else {
+                    /// @solidity memory-safe-assembly
+                    assembly {
+                        revert(add(32, reason), mload(reason))
+                    }
+                }
+            }
+        } else {
+            return true;
+        }
+    }
+
+    /**
+     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
+     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
+     *
+     * Calling conditions:
+     *
+     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
+     * - When `from` is zero, the tokens will be minted for `to`.
+     * - When `to` is zero, ``from``'s tokens will be burned.
+     * - `from` and `to` are never both zero.
+     * - `batchSize` is non-zero.
+     *
+     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
+     */
+    function _beforeTokenTransfer(
+        address from,
+        address to,
+        uint256, /* firstTokenId */
+        uint256 batchSize
+    ) internal virtual {
+        if (batchSize > 1) {
+            if (from != address(0)) {
+                _balances[from] -= batchSize;
+            }
+            if (to != address(0)) {
+                _balances[to] += batchSize;
+            }
+        }
+    }
+
+    /**
+     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
+     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
+     *
+     * Calling conditions:
+     *
+     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
+     * - When `from` is zero, the tokens were minted for `to`.
+     * - When `to` is zero, ``from``'s tokens were burned.
+     * - `from` and `to` are never both zero.
+     * - `batchSize` is non-zero.
+     *
+     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
+     */
+    function _afterTokenTransfer(
+        address from,
+        address to,
+        uint256 firstTokenId,
+        uint256 batchSize
+    ) internal virtual {}
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/IERC721.sol
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
+
+pragma solidity ^0.8.0;
+
+import "../../utils/introspection/IERC165.sol";
+
+/**
+ * @dev Required interface of an ERC721 compliant contract.
+ */
+interface IERC721 is IERC165 {
+    /**
+     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
+     */
+    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
+
+    /**
+     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
+     */
+    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
+
+    /**
+     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
+     */
+    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
+
+    /**
+     * @dev Returns the number of tokens in ``owner``'s account.
+     */
+    function balanceOf(address owner) external view returns (uint256 balance);
+
+    /**
+     * @dev Returns the owner of the `tokenId` token.
+     *
+     * Requirements:
+     *
+     * - `tokenId` must exist.
+     */
+    function ownerOf(uint256 tokenId) external view returns (address owner);
+
+    /**
+     * @dev Safely transfers `tokenId` token from `from` to `to`.
+     *
+     * Requirements:
+     *
+     * - `from` cannot be the zero address.
+     * - `to` cannot be the zero address.
+     * - `tokenId` token must exist and be owned by `from`.
+     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
+     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
+     *
+     * Emits a {Transfer} event.
+     */
+    function safeTransferFrom(
+        address from,
+        address to,
+        uint256 tokenId,
+        bytes calldata data
+    ) external;
+
+    /**
+     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
+     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
+     *
+     * Requirements:
+     *
+     * - `from` cannot be the zero address.
+     * - `to` cannot be the zero address.
+     * - `tokenId` token must exist and be owned by `from`.
+     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
+     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
+     *
+     * Emits a {Transfer} event.
+     */
+    function safeTransferFrom(
+        address from,
+        address to,
+        uint256 tokenId
+    ) external;
+
+    /**
+     * @dev Transfers `tokenId` token from `from` to `to`.
+     *
+     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
+     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
+     * understand this adds an external call which potentially creates a reentrancy vulnerability.
+     *
+     * Requirements:
+     *
+     * - `from` cannot be the zero address.
+     * - `to` cannot be the zero address.
+     * - `tokenId` token must be owned by `from`.
+     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
+     *
+     * Emits a {Transfer} event.
+     */
+    function transferFrom(
+        address from,
+        address to,
+        uint256 tokenId
+    ) external;
+
+    /**
+     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
+     * The approval is cleared when the token is transferred.
+     *
+     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
+     *
+     * Requirements:
+     *
+     * - The caller must own the token or be an approved operator.
+     * - `tokenId` must exist.
+     *
+     * Emits an {Approval} event.
+     */
+    function approve(address to, uint256 tokenId) external;
+
+    /**
+     * @dev Approve or remove `operator` as an operator for the caller.
+     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
+     *
+     * Requirements:
+     *
+     * - The `operator` cannot be the caller.
+     *
+     * Emits an {ApprovalForAll} event.
+     */
+    function setApprovalForAll(address operator, bool _approved) external;
+
+    /**
+     * @dev Returns the account approved for `tokenId` token.
+     *
+     * Requirements:
+     *
+     * - `tokenId` must exist.
+     */
+    function getApproved(uint256 tokenId) external view returns (address operator);
+
+    /**
+     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
+     *
+     * See {setApprovalForAll}
+     */
+    function isApprovedForAll(address owner, address operator) external view returns (bool);
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @title ERC721 token receiver interface
+ * @dev Interface for any contract that wants to support safeTransfers
+ * from ERC721 asset contracts.
+ */
+interface IERC721Receiver {
+    /**
+     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
+     * by `operator` from `from`, this function is called.
+     *
+     * It must return its Solidity selector to confirm the token transfer.
+     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
+     *
+     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
+     */
+    function onERC721Received(
+        address operator,
+        address from,
+        uint256 tokenId,
+        bytes calldata data
+    ) external returns (bytes4);
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Burnable.sol)
+
+pragma solidity ^0.8.0;
+
+import "../ERC721.sol";
+import "../../../utils/Context.sol";
+
+/**
+ * @title ERC721 Burnable Token
+ * @dev ERC721 Token that can be burned (destroyed).
+ */
+abstract contract ERC721Burnable is Context, ERC721 {
+    /**
+     * @dev Burns `tokenId`. See {ERC721-_burn}.
+     *
+     * Requirements:
+     *
+     * - The caller must own `tokenId` or be an approved operator.
+     */
+    function burn(uint256 tokenId) public virtual {
+        //solhint-disable-next-line max-line-length
+        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
+        _burn(tokenId);
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Enumerable.sol)
+
+pragma solidity ^0.8.0;
+
+import "../ERC721.sol";
+import "./IERC721Enumerable.sol";
+
+/**
+ * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
+ * enumerability of all the token ids in the contract as well as all token ids owned by each
+ * account.
+ */
+abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
+    // Mapping from owner to list of owned token IDs
+    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
+
+    // Mapping from token ID to index of the owner tokens list
+    mapping(uint256 => uint256) private _ownedTokensIndex;
+
+    // Array with all token ids, used for enumeration
+    uint256[] private _allTokens;
+
+    // Mapping from token id to position in the allTokens array
+    mapping(uint256 => uint256) private _allTokensIndex;
+
+    /**
+     * @dev See {IERC165-supportsInterface}.
+     */
+    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
+        return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
+    }
+
+    /**
+     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
+     */
+    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
+        require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
+        return _ownedTokens[owner][index];
+    }
+
+    /**
+     * @dev See {IERC721Enumerable-totalSupply}.
+     */
+    function totalSupply() public view virtual override returns (uint256) {
+        return _allTokens.length;
+    }
+
+    /**
+     * @dev See {IERC721Enumerable-tokenByIndex}.
+     */
+    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
+        require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
+        return _allTokens[index];
+    }
+
+    /**
+     * @dev See {ERC721-_beforeTokenTransfer}.
+     */
+    function _beforeTokenTransfer(
+        address from,
+        address to,
+        uint256 firstTokenId,
+        uint256 batchSize
+    ) internal virtual override {
+        super._beforeTokenTransfer(from, to, firstTokenId, batchSize);
+
+        if (batchSize > 1) {
+            // Will only trigger during construction. Batch transferring (minting) is not available afterwards.
+            revert("ERC721Enumerable: consecutive transfers not supported");
+        }
+
+        uint256 tokenId = firstTokenId;
+
+        if (from == address(0)) {
+            _addTokenToAllTokensEnumeration(tokenId);
+        } else if (from != to) {
+            _removeTokenFromOwnerEnumeration(from, tokenId);
+        }
+        if (to == address(0)) {
+            _removeTokenFromAllTokensEnumeration(tokenId);
+        } else if (to != from) {
+            _addTokenToOwnerEnumeration(to, tokenId);
+        }
+    }
+
+    /**
+     * @dev Private function to add a token to this extension's ownership-tracking data structures.
+     * @param to address representing the new owner of the given token ID
+     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
+     */
+    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
+        uint256 length = ERC721.balanceOf(to);
+        _ownedTokens[to][length] = tokenId;
+        _ownedTokensIndex[tokenId] = length;
+    }
+
+    /**
+     * @dev Private function to add a token to this extension's token tracking data structures.
+     * @param tokenId uint256 ID of the token to be added to the tokens list
+     */
+    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
+        _allTokensIndex[tokenId] = _allTokens.length;
+        _allTokens.push(tokenId);
+    }
+
+    /**
+     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
+     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
+     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
+     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
+     * @param from address representing the previous owner of the given token ID
+     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
+     */
+    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
+        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
+        // then delete the last slot (swap and pop).
+
+        uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
+        uint256 tokenIndex = _ownedTokensIndex[tokenId];
+
+        // When the token to delete is the last token, the swap operation is unnecessary
+        if (tokenIndex != lastTokenIndex) {
+            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
+
+            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
+            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
+        }
+
+        // This also deletes the contents at the last position of the array
+        delete _ownedTokensIndex[tokenId];
+        delete _ownedTokens[from][lastTokenIndex];
+    }
+
+    /**
+     * @dev Private function to remove a token from this extension's token tracking data structures.
+     * This has O(1) time complexity, but alters the order of the _allTokens array.
+     * @param tokenId uint256 ID of the token to be removed from the tokens list
+     */
+    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
+        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
+        // then delete the last slot (swap and pop).
+
+        uint256 lastTokenIndex = _allTokens.length - 1;
+        uint256 tokenIndex = _allTokensIndex[tokenId];
+
+        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
+        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
+        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
+        uint256 lastTokenId = _allTokens[lastTokenIndex];
+
+        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
+        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
+
+        // This also deletes the contents at the last position of the array
+        delete _allTokensIndex[tokenId];
+        _allTokens.pop();
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721URIStorage.sol)
+
+pragma solidity ^0.8.0;
+
+import "../ERC721.sol";
+
+/**
+ * @dev ERC721 token with storage based token URI management.
+ */
+abstract contract ERC721URIStorage is ERC721 {
+    using Strings for uint256;
+
+    // Optional mapping for token URIs
+    mapping(uint256 => string) private _tokenURIs;
+
+    /**
+     * @dev See {IERC721Metadata-tokenURI}.
+     */
+    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
+        _requireMinted(tokenId);
+
+        string memory _tokenURI = _tokenURIs[tokenId];
+        string memory base = _baseURI();
+
+        // If there is no base URI, return the token URI.
+        if (bytes(base).length == 0) {
+            return _tokenURI;
+        }
+        // If both are set, concatenate the baseURI and tokenURI (via abi.encodePacked).
+        if (bytes(_tokenURI).length > 0) {
+            return string(abi.encodePacked(base, _tokenURI));
+        }
+
+        return super.tokenURI(tokenId);
+    }
+
+    /**
+     * @dev Sets `_tokenURI` as the tokenURI of `tokenId`.
+     *
+     * Requirements:
+     *
+     * - `tokenId` must exist.
+     */
+    function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal virtual {
+        require(_exists(tokenId), "ERC721URIStorage: URI set of nonexistent token");
+        _tokenURIs[tokenId] = _tokenURI;
+    }
+
+    /**
+     * @dev See {ERC721-_burn}. This override additionally checks to see if a
+     * token-specific URI was set for the token, and if so, it deletes the token URI from
+     * the storage mapping.
+     */
+    function _burn(uint256 tokenId) internal virtual override {
+        super._burn(tokenId);
+
+        if (bytes(_tokenURIs[tokenId]).length != 0) {
+            delete _tokenURIs[tokenId];
+        }
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)
+
+pragma solidity ^0.8.0;
+
+import "../IERC721.sol";
+
+/**
+ * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
+ * @dev See https://eips.ethereum.org/EIPS/eip-721
+ */
+interface IERC721Enumerable is IERC721 {
+    /**
+     * @dev Returns the total amount of tokens stored by the contract.
+     */
+    function totalSupply() external view returns (uint256);
+
+    /**
+     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
+     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
+     */
+    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);
+
+    /**
+     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
+     * Use along with {totalSupply} to enumerate all tokens.
+     */
+    function tokenByIndex(uint256 index) external view returns (uint256);
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
+
+pragma solidity ^0.8.0;
+
+import "../IERC721.sol";
+
+/**
+ * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
+ * @dev See https://eips.ethereum.org/EIPS/eip-721
+ */
+interface IERC721Metadata is IERC721 {
+    /**
+     * @dev Returns the token collection name.
+     */
+    function name() external view returns (string memory);
+
+    /**
+     * @dev Returns the token collection symbol.
+     */
+    function symbol() external view returns (string memory);
+
+    /**
+     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
+     */
+    function tokenURI(uint256 tokenId) external view returns (string memory);
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/utils/Address.sol
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
+
+pragma solidity ^0.8.1;
+
+/**
+ * @dev Collection of functions related to the address type
+ */
+library Address {
+    /**
+     * @dev Returns true if `account` is a contract.
+     *
+     * [IMPORTANT]
+     * ====
+     * It is unsafe to assume that an address for which this function returns
+     * false is an externally-owned account (EOA) and not a contract.
+     *
+     * Among others, `isContract` will return false for the following
+     * types of addresses:
+     *
+     *  - an externally-owned account
+     *  - a contract in construction
+     *  - an address where a contract will be created
+     *  - an address where a contract lived, but was destroyed
+     * ====
+     *
+     * [IMPORTANT]
+     * ====
+     * You shouldn't rely on `isContract` to protect against flash loan attacks!
+     *
+     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
+     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
+     * constructor.
+     * ====
+     */
+    function isContract(address account) internal view returns (bool) {
+        // This method relies on extcodesize/address.code.length, which returns 0
+        // for contracts in construction, since the code is only stored at the end
+        // of the constructor execution.
+
+        return account.code.length > 0;
+    }
+
+    /**
+     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
+     * `recipient`, forwarding all available gas and reverting on errors.
+     *
+     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
+     * of certain opcodes, possibly making contracts go over the 2300 gas limit
+     * imposed by `transfer`, making them unable to receive funds via
+     * `transfer`. {sendValue} removes this limitation.
+     *
+     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
+     *
+     * IMPORTANT: because control is transferred to `recipient`, care must be
+     * taken to not create reentrancy vulnerabilities. Consider using
+     * {ReentrancyGuard} or the
+     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
+     */
+    function sendValue(address payable recipient, uint256 amount) internal {
+        require(address(this).balance >= amount, "Address: insufficient balance");
+
+        (bool success, ) = recipient.call{value: amount}("");
+        require(success, "Address: unable to send value, recipient may have reverted");
+    }
+
+    /**
+     * @dev Performs a Solidity function call using a low level `call`. A
+     * plain `call` is an unsafe replacement for a function call: use this
+     * function instead.
+     *
+     * If `target` reverts with a revert reason, it is bubbled up by this
+     * function (like regular Solidity function calls).
+     *
+     * Returns the raw returned data. To convert to the expected return value,
+     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
+     *
+     * Requirements:
+     *
+     * - `target` must be a contract.
+     * - calling `target` with `data` must not revert.
+     *
+     * _Available since v3.1._
+     */
+    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
+        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
+    }
+
+    /**
+     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
+     * `errorMessage` as a fallback revert reason when `target` reverts.
+     *
+     * _Available since v3.1._
+     */
+    function functionCall(
+        address target,
+        bytes memory data,
+        string memory errorMessage
+    ) internal returns (bytes memory) {
+        return functionCallWithValue(target, data, 0, errorMessage);
+    }
+
+    /**
+     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
+     * but also transferring `value` wei to `target`.
+     *
+     * Requirements:
+     *
+     * - the calling contract must have an ETH balance of at least `value`.
+     * - the called Solidity function must be `payable`.
+     *
+     * _Available since v3.1._
+     */
+    function functionCallWithValue(
+        address target,
+        bytes memory data,
+        uint256 value
+    ) internal returns (bytes memory) {
+        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
+    }
+
+    /**
+     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
+     * with `errorMessage` as a fallback revert reason when `target` reverts.
+     *
+     * _Available since v3.1._
+     */
+    function functionCallWithValue(
+        address target,
+        bytes memory data,
+        uint256 value,
+        string memory errorMessage
+    ) internal returns (bytes memory) {
+        require(address(this).balance >= value, "Address: insufficient balance for call");
+        (bool success, bytes memory returndata) = target.call{value: value}(data);
+        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
+    }
+
+    /**
+     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
+     * but performing a static call.
+     *
+     * _Available since v3.3._
+     */
+    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
+        return functionStaticCall(target, data, "Address: low-level static call failed");
+    }
+
+    /**
+     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
+     * but performing a static call.
+     *
+     * _Available since v3.3._
+     */
+    function functionStaticCall(
+        address target,
+        bytes memory data,
+        string memory errorMessage
+    ) internal view returns (bytes memory) {
+        (bool success, bytes memory returndata) = target.staticcall(data);
+        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
+    }
+
+    /**
+     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
+     * but performing a delegate call.
+     *
+     * _Available since v3.4._
+     */
+    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
+        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
+    }
+
+    /**
+     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
+     * but performing a delegate call.
+     *
+     * _Available since v3.4._
+     */
+    function functionDelegateCall(
+        address target,
+        bytes memory data,
+        string memory errorMessage
+    ) internal returns (bytes memory) {
+        (bool success, bytes memory returndata) = target.delegatecall(data);
+        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
+    }
+
+    /**
+     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
+     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
+     *
+     * _Available since v4.8._
+     */
+    function verifyCallResultFromTarget(
+        address target,
+        bool success,
+        bytes memory returndata,
+        string memory errorMessage
+    ) internal view returns (bytes memory) {
+        if (success) {
+            if (returndata.length == 0) {
+                // only check isContract if the call was successful and the return data is empty
+                // otherwise we already know that it was a contract
+                require(isContract(target), "Address: call to non-contract");
+            }
+            return returndata;
+        } else {
+            _revert(returndata, errorMessage);
+        }
+    }
+
+    /**
+     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
+     * revert reason or using the provided one.
+     *
+     * _Available since v4.3._
+     */
+    function verifyCallResult(
+        bool success,
+        bytes memory returndata,
+        string memory errorMessage
+    ) internal pure returns (bytes memory) {
+        if (success) {
+            return returndata;
+        } else {
+            _revert(returndata, errorMessage);
+        }
+    }
+
+    function _revert(bytes memory returndata, string memory errorMessage) private pure {
+        // Look for revert reason and bubble it up if present
+        if (returndata.length > 0) {
+            // The easiest way to bubble the revert reason is using memory via assembly
+            /// @solidity memory-safe-assembly
+            assembly {
+                let returndata_size := mload(returndata)
+                revert(add(32, returndata), returndata_size)
+            }
+        } else {
+            revert(errorMessage);
+        }
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/utils/Context.sol
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @dev Provides information about the current execution context, including the
+ * sender of the transaction and its data. While these are generally available
+ * via msg.sender and msg.data, they should not be accessed in such a direct
+ * manner, since when dealing with meta-transactions the account sending and
+ * paying for execution may not be the actual sender (as far as an application
+ * is concerned).
+ *
+ * This contract is only required for intermediate, library-like contracts.
+ */
+abstract contract Context {
+    function _msgSender() internal view virtual returns (address) {
+        return msg.sender;
+    }
+
+    function _msgData() internal view virtual returns (bytes calldata) {
+        return msg.data;
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/utils/Counters.sol
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @title Counters
+ * @author Matt Condon (@shrugs)
+ * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
+ * of elements in a mapping, issuing ERC721 ids, or counting request ids.
+ *
+ * Include with `using Counters for Counters.Counter;`
+ */
+library Counters {
+    struct Counter {
+        // This variable should never be directly accessed by users of the library: interactions must be restricted to
+        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
+        // this feature: see https://github.com/ethereum/solidity/issues/4637
+        uint256 _value; // default: 0
+    }
+
+    function current(Counter storage counter) internal view returns (uint256) {
+        return counter._value;
+    }
+
+    function increment(Counter storage counter) internal {
+        unchecked {
+            counter._value += 1;
+        }
+    }
+
+    function decrement(Counter storage counter) internal {
+        uint256 value = counter._value;
+        require(value > 0, "Counter: decrement overflow");
+        unchecked {
+            counter._value = value - 1;
+        }
+    }
+
+    function reset(Counter storage counter) internal {
+        counter._value = 0;
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/utils/Strings.sol
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)
+
+pragma solidity ^0.8.0;
+
+import "./math/Math.sol";
+
+/**
+ * @dev String operations.
+ */
+library Strings {
+    bytes16 private constant _SYMBOLS = "0123456789abcdef";
+    uint8 private constant _ADDRESS_LENGTH = 20;
+
+    /**
+     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
+     */
+    function toString(uint256 value) internal pure returns (string memory) {
+        unchecked {
+            uint256 length = Math.log10(value) + 1;
+            string memory buffer = new string(length);
+            uint256 ptr;
+            /// @solidity memory-safe-assembly
+            assembly {
+                ptr := add(buffer, add(32, length))
+            }
+            while (true) {
+                ptr--;
+                /// @solidity memory-safe-assembly
+                assembly {
+                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
+                }
+                value /= 10;
+                if (value == 0) break;
+            }
+            return buffer;
+        }
+    }
+
+    /**
+     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
+     */
+    function toHexString(uint256 value) internal pure returns (string memory) {
+        unchecked {
+            return toHexString(value, Math.log256(value) + 1);
+        }
+    }
+
+    /**
+     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
+     */
+    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
+        bytes memory buffer = new bytes(2 * length + 2);
+        buffer[0] = "0";
+        buffer[1] = "x";
+        for (uint256 i = 2 * length + 1; i > 1; --i) {
+            buffer[i] = _SYMBOLS[value & 0xf];
+            value >>= 4;
+        }
+        require(value == 0, "Strings: hex length insufficient");
+        return string(buffer);
+    }
+
+    /**
+     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
+     */
+    function toHexString(address addr) internal pure returns (string memory) {
+        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/utils/introspection/ERC165.sol
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
+
+pragma solidity ^0.8.0;
+
+import "./IERC165.sol";
+
+/**
+ * @dev Implementation of the {IERC165} interface.
+ *
+ * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
+ * for the additional interface id that will be supported. For example:
+ *
+ * ```solidity
+ * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
+ *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
+ * }
+ * ```
+ *
+ * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
+ */
+abstract contract ERC165 is IERC165 {
+    /**
+     * @dev See {IERC165-supportsInterface}.
+     */
+    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
+        return interfaceId == type(IERC165).interfaceId;
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/utils/introspection/IERC165.sol
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @dev Interface of the ERC165 standard, as defined in the
+ * https://eips.ethereum.org/EIPS/eip-165[EIP].
+ *
+ * Implementers can declare support of contract interfaces, which can then be
+ * queried by others ({ERC165Checker}).
+ *
+ * For an implementation, see {ERC165}.
+ */
+interface IERC165 {
+    /**
+     * @dev Returns true if this contract implements the interface defined by
+     * `interfaceId`. See the corresponding
+     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
+     * to learn more about how these ids are created.
+     *
+     * This function call must use less than 30 000 gas.
+     */
+    function supportsInterface(bytes4 interfaceId) external view returns (bool);
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/@openzeppelin/contracts/utils/math/Math.sol
@@ -0,0 +1,345 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)
+
+pragma solidity ^0.8.0;
+
+/**
+ * @dev Standard math utilities missing in the Solidity language.
+ */
+library Math {
+    enum Rounding {
+        Down, // Toward negative infinity
+        Up, // Toward infinity
+        Zero // Toward zero
+    }
+
+    /**
+     * @dev Returns the largest of two numbers.
+     */
+    function max(uint256 a, uint256 b) internal pure returns (uint256) {
+        return a > b ? a : b;
+    }
+
+    /**
+     * @dev Returns the smallest of two numbers.
+     */
+    function min(uint256 a, uint256 b) internal pure returns (uint256) {
+        return a < b ? a : b;
+    }
+
+    /**
+     * @dev Returns the average of two numbers. The result is rounded towards
+     * zero.
+     */
+    function average(uint256 a, uint256 b) internal pure returns (uint256) {
+        // (a + b) / 2 can overflow.
+        return (a & b) + (a ^ b) / 2;
+    }
+
+    /**
+     * @dev Returns the ceiling of the division of two numbers.
+     *
+     * This differs from standard division with `/` in that it rounds up instead
+     * of rounding down.
+     */
+    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
+        // (a + b - 1) / b can overflow on addition, so we distribute.
+        return a == 0 ? 0 : (a - 1) / b + 1;
+    }
+
+    /**
+     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
+     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
+     * with further edits by Uniswap Labs also under MIT license.
+     */
+    function mulDiv(
+        uint256 x,
+        uint256 y,
+        uint256 denominator
+    ) internal pure returns (uint256 result) {
+        unchecked {
+            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
+            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
+            // variables such that product = prod1 * 2^256 + prod0.
+            uint256 prod0; // Least significant 256 bits of the product
+            uint256 prod1; // Most significant 256 bits of the product
+            assembly {
+                let mm := mulmod(x, y, not(0))
+                prod0 := mul(x, y)
+                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
+            }
+
+            // Handle non-overflow cases, 256 by 256 division.
+            if (prod1 == 0) {
+                return prod0 / denominator;
+            }
+
+            // Make sure the result is less than 2^256. Also prevents denominator == 0.
+            require(denominator > prod1);
+
+            ///////////////////////////////////////////////
+            // 512 by 256 division.
+            ///////////////////////////////////////////////
+
+            // Make division exact by subtracting the remainder from [prod1 prod0].
+            uint256 remainder;
+            assembly {
+                // Compute remainder using mulmod.
+                remainder := mulmod(x, y, denominator)
+
+                // Subtract 256 bit number from 512 bit number.
+                prod1 := sub(prod1, gt(remainder, prod0))
+                prod0 := sub(prod0, remainder)
+            }
+
+            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
+            // See https://cs.stackexchange.com/q/138556/92363.
+
+            // Does not overflow because the denominator cannot be zero at this stage in the function.
+            uint256 twos = denominator & (~denominator + 1);
+            assembly {
+                // Divide denominator by twos.
+                denominator := div(denominator, twos)
+
+                // Divide [prod1 prod0] by twos.
+                prod0 := div(prod0, twos)
+
+                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
+                twos := add(div(sub(0, twos), twos), 1)
+            }
+
+            // Shift in bits from prod1 into prod0.
+            prod0 |= prod1 * twos;
+
+            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
+            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
+            // four bits. That is, denominator * inv = 1 mod 2^4.
+            uint256 inverse = (3 * denominator) ^ 2;
+
+            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
+            // in modular arithmetic, doubling the correct bits in each step.
+            inverse *= 2 - denominator * inverse; // inverse mod 2^8
+            inverse *= 2 - denominator * inverse; // inverse mod 2^16
+            inverse *= 2 - denominator * inverse; // inverse mod 2^32
+            inverse *= 2 - denominator * inverse; // inverse mod 2^64
+            inverse *= 2 - denominator * inverse; // inverse mod 2^128
+            inverse *= 2 - denominator * inverse; // inverse mod 2^256
+
+            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
+            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
+            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
+            // is no longer required.
+            result = prod0 * inverse;
+            return result;
+        }
+    }
+
+    /**
+     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
+     */
+    function mulDiv(
+        uint256 x,
+        uint256 y,
+        uint256 denominator,
+        Rounding rounding
+    ) internal pure returns (uint256) {
+        uint256 result = mulDiv(x, y, denominator);
+        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
+            result += 1;
+        }
+        return result;
+    }
+
+    /**
+     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
+     *
+     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
+     */
+    function sqrt(uint256 a) internal pure returns (uint256) {
+        if (a == 0) {
+            return 0;
+        }
+
+        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
+        //
+        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
+        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
+        //
+        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
+        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
+        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
+        //
+        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
+        uint256 result = 1 << (log2(a) >> 1);
+
+        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
+        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
+        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
+        // into the expected uint128 result.
+        unchecked {
+            result = (result + a / result) >> 1;
+            result = (result + a / result) >> 1;
+            result = (result + a / result) >> 1;
+            result = (result + a / result) >> 1;
+            result = (result + a / result) >> 1;
+            result = (result + a / result) >> 1;
+            result = (result + a / result) >> 1;
+            return min(result, a / result);
+        }
+    }
+
+    /**
+     * @notice Calculates sqrt(a), following the selected rounding direction.
+     */
+    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
+        unchecked {
+            uint256 result = sqrt(a);
+            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
+        }
+    }
+
+    /**
+     * @dev Return the log in base 2, rounded down, of a positive value.
+     * Returns 0 if given 0.
+     */
+    function log2(uint256 value) internal pure returns (uint256) {
+        uint256 result = 0;
+        unchecked {
+            if (value >> 128 > 0) {
+                value >>= 128;
+                result += 128;
+            }
+            if (value >> 64 > 0) {
+                value >>= 64;
+                result += 64;
+            }
+            if (value >> 32 > 0) {
+                value >>= 32;
+                result += 32;
+            }
+            if (value >> 16 > 0) {
+                value >>= 16;
+                result += 16;
+            }
+            if (value >> 8 > 0) {
+                value >>= 8;
+                result += 8;
+            }
+            if (value >> 4 > 0) {
+                value >>= 4;
+                result += 4;
+            }
+            if (value >> 2 > 0) {
+                value >>= 2;
+                result += 2;
+            }
+            if (value >> 1 > 0) {
+                result += 1;
+            }
+        }
+        return result;
+    }
+
+    /**
+     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
+     * Returns 0 if given 0.
+     */
+    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
+        unchecked {
+            uint256 result = log2(value);
+            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
+        }
+    }
+
+    /**
+     * @dev Return the log in base 10, rounded down, of a positive value.
+     * Returns 0 if given 0.
+     */
+    function log10(uint256 value) internal pure returns (uint256) {
+        uint256 result = 0;
+        unchecked {
+            if (value >= 10**64) {
+                value /= 10**64;
+                result += 64;
+            }
+            if (value >= 10**32) {
+                value /= 10**32;
+                result += 32;
+            }
+            if (value >= 10**16) {
+                value /= 10**16;
+                result += 16;
+            }
+            if (value >= 10**8) {
+                value /= 10**8;
+                result += 8;
+            }
+            if (value >= 10**4) {
+                value /= 10**4;
+                result += 4;
+            }
+            if (value >= 10**2) {
+                value /= 10**2;
+                result += 2;
+            }
+            if (value >= 10**1) {
+                result += 1;
+            }
+        }
+        return result;
+    }
+
+    /**
+     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
+     * Returns 0 if given 0.
+     */
+    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
+        unchecked {
+            uint256 result = log10(value);
+            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
+        }
+    }
+
+    /**
+     * @dev Return the log in base 256, rounded down, of a positive value.
+     * Returns 0 if given 0.
+     *
+     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
+     */
+    function log256(uint256 value) internal pure returns (uint256) {
+        uint256 result = 0;
+        unchecked {
+            if (value >> 128 > 0) {
+                value >>= 128;
+                result += 16;
+            }
+            if (value >> 64 > 0) {
+                value >>= 64;
+                result += 8;
+            }
+            if (value >> 32 > 0) {
+                value >>= 32;
+                result += 4;
+            }
+            if (value >> 16 > 0) {
+                value >>= 16;
+                result += 2;
+            }
+            if (value >> 8 > 0) {
+                result += 1;
+            }
+        }
+        return result;
+    }
+
+    /**
+     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
+     * Returns 0 if given 0.
+     */
+    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
+        unchecked {
+            uint256 result = log256(value);
+            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
+        }
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/ZeppelinContract.sol
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.9;
+
+import "./@openzeppelin/contracts/token/ERC721/ERC721.sol";
+import "./@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
+import "./@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol";
+import "./@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";
+import "./@openzeppelin/contracts/access/Ownable.sol";
+import "./@openzeppelin/contracts/utils/Counters.sol";
+
+contract ZeppelinContract is ERC721, ERC721Enumerable, ERC721URIStorage, ERC721Burnable, Ownable {
+    using Counters for Counters.Counter;
+
+    Counters.Counter private _tokenIdCounter;
+
+    constructor() ERC721("ZeppelinContract", "UNQ") {}
+
+    function _baseURI() internal pure override returns (string memory) {
+        return "test";
+    }
+
+    function safeMint(address to, string memory uri) public onlyOwner {
+        uint256 tokenId = _tokenIdCounter.current();
+        _tokenIdCounter.increment();
+        _safeMint(to, tokenId);
+        _setTokenURI(tokenId, uri);
+    }
+
+    // The following functions are overrides required by Solidity.
+
+    function _beforeTokenTransfer(address from, address to, uint256 tokenId, uint256 batchSize)
+        internal
+        override(ERC721, ERC721Enumerable)
+    {
+        super._beforeTokenTransfer(from, to, tokenId, batchSize);
+    }
+
+    function _burn(uint256 tokenId) internal override(ERC721, ERC721URIStorage) {
+        super._burn(tokenId);
+    }
+
+    function tokenURI(uint256 tokenId)
+        public
+        view
+        override(ERC721, ERC721URIStorage)
+        returns (string memory)
+    {
+        return super.tokenURI(tokenId);
+    }
+
+    function supportsInterface(bytes4 interfaceId)
+        public
+        view
+        override(ERC721, ERC721Enumerable)
+        returns (bool)
+    {
+        return super.supportsInterface(interfaceId);
+    }
+}

--- /dev/null
+++ b/tests/src/benchmarks/mintFee/openZeppelin/bin/ZeppelinContract.abi
@@ -0,0 +1 @@
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\ No newline at end of file

no changes