Note: The tool is currently under development, please report any bugs you may find.
A container with the dependencies set up and the blockchain snapshot installed can be found here.
To open the container, install docker and run:
docker pull hrishioa/oyente && docker run -i -t hrishioa/oyente
To evaluate the greeter contract Inside the container, run:
cd /home/oyente/oyente && source ../dependencies/venv/bin/activate && python oyente.py greeter.sol
and you are done!
To run the benchmarks, the fastest way is to use the docker image.
The blockchain snapshot is in
contract_data in the Github Repo and the benchmark results are in
benchmarks/results.json. The benchmarks were run using a 5-minute timeout - using a longer timeout will give fewer incomplete executions.
In the container, run
batch_run.py after activating the virtualenv. Results are in
results.json once the benchmark completes.
The benchmarks take a long time and a lot of RAM in any but the largest of clusters, beware.
The results are different from those in the paper. This is an improved version of the tool, with fewer exceptions.
python oyente.py <contract filename>
And that's it! Run
python oyente.py --help for a list of options.
The accompanying paper explaining the bugs detected by the tool can be found here.
A collection of the utilities that were developed for the paper are in
Misc_Utils. Use them at your own risk - they have mostly been disposable.
generate-graphs.py- Contains a number of functions to get statistics from contracts.
get_source.py- The get_contract_code function can be used to retrieve contract source from EtherScan
transaction_scrape.py- Contains functions to retrieve up-to-date transaction information for a particular contract.
If you encounter the
unhashable instance error, please add the following to your
class AstRef(Z3PPObject): in
def __hash__(self): return self.hash()
The latest version of Z3 does support this, but some previous version does not.