updating MathSAT5 to latest version 5.6.3.
<dependency org="edu.tum.cs" name="java-cup" rev="11b-20160615" conf="runtime->runtime"/>
<!-- Solver Binaries -->
- <dependency org="org.sosy_lab" name="javasmt-solver-mathsat" rev="5.5.4-sosy0" conf="runtime-mathsat->solver-mathsat" />
+ <dependency org="org.sosy_lab" name="javasmt-solver-mathsat" rev="5.6.3" conf="runtime-mathsat->solver-mathsat" />
<dependency org="org.sosy_lab" name="javasmt-solver-z3" rev="4.8.7" conf="runtime-z3->solver-z3" />
<dependency org="org.sosy_lab" name="javasmt-solver-optimathsat" rev="1.6.3" conf="runtime-optimathsat->solver-optimathsat" />
<dependency org="org.sosy_lab" name="javasmt-solver-cvc4" rev="1.8-prerelease-2019-11-30-gae93e65" conf="runtime-cvc4->solver-cvc4" />
