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 
 -8 -10 -20 0
-6 20 -13 0
9 14 19 0
5 9 12 0
-6 20 -3 0
4 15 6 0
-4 12 17 0
1 -7 -9 0
17 6 -12 0
18 13 -10 0
6 13 20 0
-6 -16 9 0
-2 -4 -18 0
-3 -13 20 0
-8 -12 18 0
-13 20 18 0
15 -17 -4 0
11 -15 10 0
-9 4 -3 0
10 -6 -8 0
-3 8 12 0
-6 -5 9 0
-5 -11 2 0
-17 -3 -5 0
-20 -16 1 0
-12 -9 -16 0
6 -8 16 0
-18 3 -8 0
-8 -5 15 0
4 -17 -2 0
12 7 8 0
-8 -10 3 0
14 3 16 0
13 9 2 0
-9 -2 11 0
4 -18 -11 0
-18 6 1 0
-8 -4 12 0
1 13 -9 0
7 13 -9 0
-8 -20 3 0
13 3 1 0
14 16 13 0
-10 -8 -16 0
15 20 -10 0
-15 12 11 0
-18 20 -10 0
-8 1 -13 0
-4 -16 8 0
17 -8 1 0
18 6 16 0
15 -1 2 0
-2 7 -10 0
14 10 11 0
2 -5 12 0
-7 8 2 0
-10 11 -6 0
16 -4 10 0
-12 -10 5 0
-5 4 -8 0
-3 13 -16 0
8 13 -5 0
17 -18 2 0
-9 -11 10 0
19 15 -7 0
-20 13 5 0
-14 -17 20 0
-17 -14 -19 0
20 -7 -10 0
-12 18 15 0
-11 -4 17 0
2 12 -3 0
3 7 -14 0
20 -5 -19 0
8 5 -16 0
7 13 3 0
-8 9 12 0
11 -12 -8 0
-15 -12 18 0
12 8 -15 0
7 -16 -9 0
9 -6 -4 0
2 6 -4 0
-3 -5 8 0
-10 14 -4 0
-4 -19 9 0
1 -2 -8 0
-3 -4 -12 0
-18 -7 14 0
5 -8 7 0
-6 9 -16 0
%
0