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-rw-r--r--backends/json/json.cc17
-rw-r--r--backends/smt2/smt2.cc6
-rw-r--r--backends/smt2/smtbmc.py5
-rw-r--r--backends/smt2/smtio.py10
4 files changed, 32 insertions, 6 deletions
diff --git a/backends/json/json.cc b/backends/json/json.cc
index 02532c39d..270d762ee 100644
--- a/backends/json/json.cc
+++ b/backends/json/json.cc
@@ -52,8 +52,23 @@ struct JsonWriter
string newstr = "\"";
for (char c : str) {
if (c == '\\')
+ newstr += "\\\\";
+ else if (c == '"')
+ newstr += "\\\"";
+ else if (c == '\b')
+ newstr += "\\b";
+ else if (c == '\f')
+ newstr += "\\f";
+ else if (c == '\n')
+ newstr += "\\n";
+ else if (c == '\r')
+ newstr += "\\r";
+ else if (c == '\t')
+ newstr += "\\t";
+ else if (c < 0x20)
+ newstr += stringf("\\u%04X", c);
+ else
newstr += c;
- newstr += c;
}
return newstr + "\"";
}
diff --git a/backends/smt2/smt2.cc b/backends/smt2/smt2.cc
index a928419a1..9bf0de03e 100644
--- a/backends/smt2/smt2.cc
+++ b/backends/smt2/smt2.cc
@@ -985,8 +985,10 @@ struct Smt2Worker
string name_a = get_bool(cell->getPort(ID::A));
string name_en = get_bool(cell->getPort(ID::EN));
- string infostr = (cell->name[0] == '$' && cell->attributes.count(ID::src)) ? cell->attributes.at(ID::src).decode_string() : get_id(cell);
- decls.push_back(stringf("; yosys-smt2-%s %d %s\n", cell->type.c_str() + 1, id, infostr.c_str()));
+ if (cell->name[0] == '$' && cell->attributes.count(ID::src))
+ decls.push_back(stringf("; yosys-smt2-%s %d %s %s\n", cell->type.c_str() + 1, id, get_id(cell), cell->attributes.at(ID::src).decode_string().c_str()));
+ else
+ decls.push_back(stringf("; yosys-smt2-%s %d %s\n", cell->type.c_str() + 1, id, get_id(cell)));
if (cell->type == ID($cover))
decls.push_back(stringf("(define-fun |%s_%c %d| ((state |%s_s|)) Bool (and %s %s)) ; %s\n",
diff --git a/backends/smt2/smtbmc.py b/backends/smt2/smtbmc.py
index e5cfcdc08..7e0d8f571 100644
--- a/backends/smt2/smtbmc.py
+++ b/backends/smt2/smtbmc.py
@@ -583,7 +583,10 @@ if aimfile is not None:
if not got_topt:
skip_steps = max(skip_steps, step)
- num_steps = max(num_steps, step+1)
+ # some solvers optimize the properties so that they fail one cycle early,
+ # thus we check the properties in the cycle the aiger witness ends, and
+ # if that doesn't work, we check the cycle after that as well.
+ num_steps = max(num_steps, step+2)
step += 1
if btorwitfile is not None:
diff --git a/backends/smt2/smtio.py b/backends/smt2/smtio.py
index d73a875ba..3d458e6cf 100644
--- a/backends/smt2/smtio.py
+++ b/backends/smt2/smtio.py
@@ -536,10 +536,16 @@ class SmtIo:
self.modinfo[self.curmod].clocks[fields[2]] = "event"
if fields[1] == "yosys-smt2-assert":
- self.modinfo[self.curmod].asserts["%s_a %s" % (self.curmod, fields[2])] = fields[3]
+ if len(fields) > 4:
+ self.modinfo[self.curmod].asserts["%s_a %s" % (self.curmod, fields[2])] = f'{fields[4]} ({fields[3]})'
+ else:
+ self.modinfo[self.curmod].asserts["%s_a %s" % (self.curmod, fields[2])] = fields[3]
if fields[1] == "yosys-smt2-cover":
- self.modinfo[self.curmod].covers["%s_c %s" % (self.curmod, fields[2])] = fields[3]
+ if len(fields) > 4:
+ self.modinfo[self.curmod].covers["%s_c %s" % (self.curmod, fields[2])] = f'{fields[4]} ({fields[3]})'
+ else:
+ self.modinfo[self.curmod].covers["%s_c %s" % (self.curmod, fields[2])] = fields[3]
if fields[1] == "yosys-smt2-maximize":
self.modinfo[self.curmod].maximize.add(fields[2])