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