message: travis: update z3
diff: @@ -26,7 +26,7 @@ before_script:
  if [ ! -d /tmp/z3cache/z3-$Z3_VERSION-x64-ubuntu-14.04 ] ; then
  rm -fr /tmp/z3cache
  mkdir /tmp/z3cache
  - wget https://github.com/Z3Prover/z3/releases/download/z3-$Z3_VERSION/z3-$Z3_VERSION.$Z3_HASH-x64-ubuntu-14.04.zip -O /tmp/z3.zip
  + wget https://github.com/Z3Prover/z3/releases/download/z3-$Z3_VERSION/z3-$Z3_VERSION.$Z3_HASH-x64-ubuntu-16.04.zip -O /tmp/z3.zip
  pushd /tmp
  unzip z3.zip
  mv z3-* z3cache
  