Add additional SMT solvers to Docker image. (#811)

* Add additional SMT solvers to Docker image.

This change downloads specific stable release versions of each supported SMT solver to the Dockerfile. In cases where a build was available(yices, cvc4, Mathsat), it is downloaded directly. In other cases, it is build from a specific source snapshot (boolector, abc). These versions could be changes if desired.

This allows easy access to Cryptol and all solvers in a single Docker container, which is useful since some common problems are not amenable to solution with Z3 alone.

As with the original Cryptol Dockerfile, this implementation uses Docker's staged build functionality both to keep the final size as small as possible and to modularize the build. If desired, this segment could be copied verbatim to the SAW Dockerfile to add additional solvers there as well.

Note that this Dockerfile doesn't currently build. However, the new segment has been tested and does work. It may be desirable to update the rest of the Dockerfile before adding this change.

Dockerfile

@@ -27,11 +27,57 @@ RUN mkdir -p rootfs/"${CRYPTOLPATH}" \
 USER root
 RUN chown -R root:root /cryptol/rootfs
 
+
+from debian:stretch AS solvers
+
+# Install needed packages for building
+RUN apt-get update \
+    && apt-get install -y curl cmake gcc g++ git libreadline-dev
+RUN useradd -m user
+RUN install -d -o user -g user /solvers
+USER user
+WORKDIR /solvers
+RUN mkdir -p rootfs/usr/local/bin
+
+# Build abc from Github. (Latest version.)
+RUN git clone https://github.com/berkeley-abc/abc.git
+RUN cd abc && make -j$(nproc)
+RUN cp abc/abc rootfs/usr/local/bin
+
+# Build Boolector release 3.2.1 from source
+RUN curl -L https://github.com/Boolector/boolector/archive/3.2.1.tar.gz | tar xz
+RUN cd boolector* && ./contrib/setup-lingeling.sh && ./contrib/setup-btor2tools.sh && ./configure.sh && cd build && make -j$(nproc)
+RUN cp boolector*/build/bin/boolector rootfs/usr/local/bin
+
+# Install yices 2.6.2
+RUN curl -L https://yices.csl.sri.com/releases/2.6.2/yices-2.6.2-x86_64-pc-linux-gnu-static-gmp.tar.gz | tar xz
+RUN cp yices*/bin/yices-smt2 rootfs/usr/local/bin
+
+# Install cvc4 1.8
+RUN curl -L https://github.com/CVC4/CVC4/releases/download/1.8/cvc4-1.8-x86_64-linux-opt --output rootfs/usr/local/bin/cvc4
+
+# Install Mathsat 5.6.3 - Uncomment if you are in compliance with Mathsat's license.
+# RUN curl -L https://mathsat.fbk.eu/download.php?file=mathsat-5.6.3-linux-x86_64.tar.gz | tar xz
+# RUN cp mathsat-5.6.3-linux-x86_64/bin/mathsat rootfs/usr/local/bin
+
+# Set executable and run tests
+RUN chmod +x rootfs/usr/local/bin/*
+COPY --from=build /cryptol/rootfs /
+ENV PATH=/solvers/rootfs/usr/local/bin:$PATH
+RUN    ! $(cryptol -c ":s prover=abc" | tail -n +2 | grep -q .) \
+#    && ! $(cryptol -c ":s prover=mathsat" | tail -n +2 | grep -q .) \
+    && ! $(cryptol -c ":s prover=cvc4" | tail -n +2 | grep -q .) \
+    && ! $(cryptol -c ":s prover=yices" | tail -n +2 | grep -q .) \
+    && ! $(cryptol -c ":s prover=boolector" | tail -n +2 | grep -q .) \
+    && ! $(cryptol -c ":s prover=z3" | tail -n +2 | grep -q .)
+
+
 FROM debian:stretch-slim
 RUN apt-get update \
     && apt-get install -y libgmp10 libgomp1 libffi6 wget libncurses5 unzip \
     && apt-get clean && rm -rf /var/lib/apt/lists/*
 COPY --from=build /cryptol/rootfs /
+COPY --from=solvers /solvers/rootfs /
 RUN useradd -m cryptol && chown -R cryptol:cryptol /home/cryptol
 USER cryptol
 ENTRYPOINT ["/usr/local/bin/cryptol"]