extended testcase test_unsat for contradiction analysis
extended testcase test_unsat for contradiction analysis

hoangmle/metaSMT,agra-uni-bremen/metaSMT,agra-uni-bremen/metaSMT,agra-uni-bremen/metaSMT,hoangmle/metaSMT,finnhaedicke/metaSMT,nbruns1/metaSMT,hoangmle/metaSMT,nbruns1/metaSMT,finnhaedicke/metaSMT,nbruns1/metaSMT,finnhaedicke/metaSMT