segfault from destructor when instantiating multiple instances of translator

[jungikim]

Instantiating and translating with multiple instances of translator works fine.
But destroying these instances results in a Segmentation fault.

Minimal example:

#include <memory>
#include "onmt/onmt.h"

int main(int argc, char **argv){
 std::unique_ptr<onmt::ITranslator> translator1 = onmt::TranslatorFactory::build("model1.t7");
 std::unique_ptr<onmt::ITranslator> translator2 = onmt::TranslatorFactory::build("model2.t7");
 return 0;
}