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