ANSWER: possibly no

program sccs : 0
size answers : 120
pos answers : 0
size binary clauses : 650
pos binary clauses : 0
size calls : 50
pos calls : 0
size calls with binary clauses : 120
pos calls with binary clauses : 10
checking termination : 0

% restoring /usr/local/bin/twshell.bin...
% /usr/local/bin/twshell.bin restored in 20 msec 1843128 bytes

real	0m1.048s
user	0m1.004s
sys	0m0.008s