\begin{BVerbatim}[commandchars=\\\{\},numbers=left,firstnumber=1,stepnumber=1,codes={\catcode`\$=3\catcode`\^=7\catcode`\_=8}]
\PY{c}{\PYZpc{} Report the status of the solver (before restarting).}
\PY{k+kt}{enum}\PY{l+s}{ }\PY{n+nv}{STATUS}\PY{l+s}{ }\PY{o}{=}\PY{l+s}{ }\PY{p}{\PYZob{}}\PY{n+nv}{START}\PY{p}{,}\PY{l+s}{ }\PY{n+nv}{UNKNOWN}\PY{p}{,}\PY{l+s}{ }\PY{n+nv}{UNSAT}\PY{p}{,}\PY{l+s}{ }\PY{n+nv}{SAT}\PY{p}{,}\PY{l+s}{ }\PY{n+nv}{OPT}\PY{g+gr}{\PYZcb{}}\PY{l+s}{ }\PY{esc}{\label{ann:enum_status}}
\PY{k}{function}\PY{l+s}{ }\PY{n+nv}{STATUS}\PY{p}{:}\PY{l+s}{ }\PY{n+nf}{status}\PY{p}{(}\PY{g+gr}{)}\PY{p}{;}\PY{l+s}{ }\PY{esc}{\label{ann:status}}
\PY{c}{\PYZpc{} Provide access to the last assigned value of variable x.}
\PY{k}{function}\PY{l+s}{ }\PY{k+kt}{int}\PY{p}{:}\PY{l+s}{ }\PY{n+nf}{lastval}\PY{p}{(}\PY{k+kt}{var}\PY{l+s}{ }\PY{k+kt}{int}\PY{p}{:}\PY{l+s}{ }\PY{n+nv}{x}\PY{g+gr}{)}\PY{p}{;}
\end{BVerbatim}