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authorAhmed Irfan <ahmedirfan1983@gmail.com>2014-01-25 19:33:24 +0100
committerAhmed Irfan <ahmedirfan1983@gmail.com>2014-01-25 19:33:24 +0100
commit0325efe17214974866be18839785d776881d9d63 (patch)
treede0e1e16ae2a1b9d403d0ece0eb5f11eb387a3ad
parent137742786e0409a43f9d69177f2929d9226dad8e (diff)
root bug corrected
-rw-r--r--backends/btor/btor.cc6
1 files changed, 5 insertions, 1 deletions
diff --git a/backends/btor/btor.cc b/backends/btor/btor.cc
index f5babebc..b8ff7bb3 100644
--- a/backends/btor/btor.cc
+++ b/backends/btor/btor.cc
@@ -415,7 +415,11 @@ struct BtorDumper
expr_line, one_line);
fprintf(f, "%s\n", str.c_str());
int cell_line = ++line_num;
- str = stringf("%d %s %d %d", line_num, cell_type_translation.at("$assert").c_str(), 1, line_num-1);
+ str = stringf("%d %s %d %d", line_num, cell_type_translation.at("$assert").c_str(), 1, -1*(line_num-1));
+ //multiplying the line number with -1, which means logical negation
+ //the reason for negative sign is that the properties in btor are given as "negation of the original property"
+ //bug identified by bobosoft
+ //http://www.reddit.com/r/yosys/comments/1w3xig/btor_backend_bug/
fprintf(f, "%s\n", str.c_str());
line_ref[cell->name]=cell_line;
}