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