ANSWER: possibly no

program sccs : 0
size answers : 0
pos answers : 0
size binary clauses : 0
pos binary clauses : 0
size calls : 0
pos calls : 0
size calls with binary clauses : 0
pos calls with binary clauses : 0
checking termination : 0

% restoring /usr/local/bin/twshell.bin...
% /usr/local/bin/twshell.bin restored in 10 msec 1843128 bytes

real	0m0.072s
user	0m0.032s
sys	0m0.020s