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