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Partially implement cover() support in yosys-smtbmc

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This commit is contained in:
Clifford Wolf 2017-02-04 18:17:08 +01:00
parent 6abf79eb28
commit 0c0784b6bf
3 changed files with 97 additions and 4 deletions
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8
backends/smt2/smt2.cc
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@ -669,8 +669,12 @@ struct Smt2Worker
string name_en = get_bool(cell->getPort("\\EN"));
decls.push_back(stringf("; yosys-smt2-%s %s#%d %s\n", cell->type.c_str() + 1, get_id(module), idcounter,
cell->attributes.count("\\src") ? cell->attributes.at("\\src").decode_string().c_str() : get_id(cell)));
decls.push_back(stringf("(define-fun |%s#%d| ((state |%s_s|)) Bool (or %s (not %s))) ; %s\n",
get_id(module), idcounter, get_id(module), name_a.c_str(), name_en.c_str(), get_id(cell)));
if (cell->type == "$cover")
decls.push_back(stringf("(define-fun |%s#%d| ((state |%s_s|)) Bool (and %s %s)) ; %s\n",
get_id(module), idcounter, get_id(module), name_a.c_str(), name_en.c_str(), get_id(cell)));
else
decls.push_back(stringf("(define-fun |%s#%d| ((state |%s_s|)) Bool (or %s (not %s))) ; %s\n",
get_id(module), idcounter, get_id(module), name_a.c_str(), name_en.c_str(), get_id(cell)));
if (cell->type == "$assert")
assert_list.push_back(stringf("(|%s#%d| state)", get_id(module), idcounter++));
else if (cell->type == "$assume")