Fix the bug in 35_a_emptyset, exiting with -1 if none are found for -A and -B
Fix the bug in 35_a_emptyset, exiting with -1 if none are found for -A and -B

benjipdx/builditbreakit,tgjamin/builditbreakit,benjipdx/builditbreakit,tgjamin/builditbreakit