Smart Contract formal verification Python program
安装过程：
1、安装python包
20:16 Packages installed successfully: Installed packages: 'z3'
20:21 Packages installed successfully: Installed packages: 'z3-solver'
20:24 Packages installed successfully: Installed packages: 'tokenlib'
20:26 Packages installed successfully: Installed packages: 'nltk'
20:27 Packages installed successfully: Installed packages: 'ply'
20:32 Packages installed successfully: Installed packages: 'document'
20:33 Packages installed successfully: Installed packages: 'docx'
然后选择 pip install python-docx pip uninstall docx
因为docx有问题，不能直接用
pip install graphviz 然后可以运行为：
python merify.py -ce -s test/DAO.sol
生成执行文件为： python 3.6 已经自己安装了pip，所以只需要执行 pip install pyinstaller就可以了
编译可执行文件
brew install upx
然后运行 python -O -m PyInstaller --onefile merify.py