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