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