c This Formular is generated by mcnf
c
c    horn? no 
c    forced? no 
c    mixed sat? no 
c    clause length = 3 
c
p cnf 20  91 
 -11 2 -12 0
-3 -2 19 0
5 -8 1 0
11 19 -13 0
6 12 -9 0
12 -3 11 0
8 -14 2 0
-10 -19 -5 0
-9 15 6 0
17 15 8 0
-5 16 13 0
-18 -8 -19 0
3 4 10 0
19 10 1 0
7 18 14 0
8 -18 16 0
-20 7 19 0
3 19 7 0
-14 5 -10 0
-12 7 -10 0
4 7 10 0
6 -11 -9 0
-6 -14 17 0
18 10 -6 0
-4 -17 20 0
7 -15 16 0
-6 -10 -14 0
16 13 9 0
-6 20 16 0
17 -20 -9 0
-16 6 11 0
16 12 -19 0
-2 18 12 0
-1 10 2 0
6 -19 -14 0
-4 3 -2 0
11 1 10 0
-3 19 1 0
-14 4 -11 0
-14 -10 2 0
14 -2 -20 0
-2 -11 4 0
-11 7 -6 0
16 11 15 0
19 -15 -10 0
2 16 4 0
-10 17 -9 0
-10 -17 -3 0
-8 -9 -2 0
8 7 -9 0
18 -14 -5 0
20 -7 13 0
7 14 5 0
11 -18 5 0
-11 1 14 0
-10 1 -18 0
8 -4 3 0
3 20 14 0
-11 -13 -20 0
-20 -6 -14 0
-16 8 -17 0
-10 9 -4 0
13 -12 -16 0
9 10 11 0
-1 -4 12 0
12 -17 8 0
14 -7 11 0
19 6 -2 0
14 -15 -10 0
-2 -3 -7 0
-7 -10 -13 0
-3 -8 -17 0
20 -12 18 0
-2 10 -17 0
-7 12 -18 0
9 15 -5 0
12 -6 -8 0
5 11 -17 0
-8 17 15 0
-5 18 7 0
6 19 -7 0
20 10 6 0
-8 20 -1 0
2 14 1 0
-6 -11 2 0
-10 19 -14 0
-17 12 16 0
8 20 2 0
4 -8 -15 0
-9 1 -11 0
-20 19 11 0
%
0