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