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-rw-r--r--passes/sat/qbfsat.cc4
1 files changed, 2 insertions, 2 deletions
diff --git a/passes/sat/qbfsat.cc b/passes/sat/qbfsat.cc
index bbe2f3354..3db84a579 100644
--- a/passes/sat/qbfsat.cc
+++ b/passes/sat/qbfsat.cc
@@ -446,7 +446,7 @@ struct QbfSatPass : public Pass {
if (!opt.specialize_from_file) {
//Save the design to restore after modiyfing the current module.
std::string module_name = module->name.str();
- Pass::call(design, "design -save _qbfsat_tmp");
+ Pass::call(design, "design -duplicate");
//Replace input wires with wires assigned $allconst cells.
std::set<std::string> input_wires = validate_design_and_get_inputs(module);
@@ -455,7 +455,7 @@ struct QbfSatPass : public Pass {
assume_miter_outputs(module);
QbfSolutionType ret = qbf_solve(module, opt);
- Pass::call(design, "design -load _qbfsat_tmp");
+ Pass::call(design, "design -pop");
module = design->module(module_name);
if (ret.unknown)