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