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