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