#fixed code
                                Model(Matrix wi,
          Matrix wo,
          Args args,
          int seed) {
        hidden_ = new Vector(args.dim);
        output_ = new Vector(wo.m_);
        grad_ = new Vector(args.dim);
        random = new Random(seed);
        wi_ = wi;
        wo_ = wo;
        args_ = args;
        isz_ = wi.m_;
        osz_ = wo.m_;
        hsz_ = args.dim;
        negpos = 0;
        loss_ = 0.0f;
        nexamples_ = 1;
    }
#vulnerable code 
                                float negativeSampling(int target, float lr) {
        float loss = 0.0f;
        grad_.zero();
        for (int n = 0; n <= args_.neg; n++) {
            if (n == 0) {
                loss += binaryLogistic(target, true, lr);
            } else {
                loss += binaryLogistic(getNegative(target), false, lr);
            }
        }
        return loss;
    } 
                            #location 6 
                            #vulnerability type THREAD_SAFETY_VIOLATION