Floating point exception (core dumped) when running OpenCV trainhog.cpp

Hello, I'm developing a solution for detecting objects in an image using HOG + SVM. Until then I just set up my database of positive and negative samples.

I was using the OpenCV sample code trainghog.cpp, I just inserted my parameters as below:

const char* keys =
    {
        "{help h|     | show help message}"
        "{pd    |../../amostras/positivas| path of directory contains possitive images}"
        "{nd    |../../amostras/negativas| path of directory contains negative images}"
        "{td    |../../testes| path of directory contains test images}"
        "{tv    |     | test video file name}"
        "{dw    |64| width of the detector}"
        "{dh    |64| height of the detector}"
        "{d     |false| train twice}"
        "{t     |false| test a trained detector}"
        "{v     |true| visualize training steps}"
        "{fn    || file name of trained SVM}"
    };

I have not changed any other line of code. Positive images are read, when it comes to negatives, this appears:

Doesanyoneknowwhatthiserrormightbe?

Assuggested,hereisthelinkthatcontainstheexamplecode: link