I get SIGSEGV when I call TessBaseAPI.Init()

I get SIGSEGV error when I call TessBaseAPI.Init().

OCRUtil.java:

public class OCRUtil
{
    private TessBaseAPI mTess; //Tess API reference
    String datapath = "" ; //path to data
    private boolean isInitiated=false;

    private String TAG="BTOPP OCRHELPER";

    public void Init()
    {
        Log.v(TAG,"OCR INIT");
        if(isInitiated)
            return;
        //init image
        //image = BitmapFactory.decodeFile(""); //sample file
        //train data path
        datapath = WorkerService.getContext().getFilesDir()+"/tesseract/";

        //Check if the training data has been copied
        checkFile(new File(datapath + "tessdata/"));

        Log.d(TAG,"CheckFile done");
        //Tesseract API
        String lang = "eng";

        mTess = new TessBaseAPI();
        Log.d(TAG,"NEW tessApi done");
        mTess.setDebug(true);
        System.gc();
        try
        {
            mTess.init(datapath, lang);
            isInitiated=true;
        }catch(Exception e)
        {
            Log.e(TAG,"init error",e);
        }
        Log.d(TAG,"TESSINIT DONE");

        return;
    }

    //Process an Image
    public String processImage(Bitmap img)
    {
        String OCRresult;
        mTess.setImage(img);
        OCRresult = mTess.getUTF8Text();
        //TextView OCRTextView = (TextView) findViewById(R.id.OCRTextView);
        //OCRTextView.setText(OCRresult);
        return OCRresult;
    }

    public String processImage(String path)
    {
        return processImage(BitmapFactory.decodeFile(path));
    }

    //copy file to device
    private void copyFiles()
    {
        try
        {
            String filepath = datapath + "/tessdata/eng.traineddata";
            AssetManager assetManager = WorkerService.getContext().getAssets();
            InputStream instream = assetManager.open("tessdata/eng.traineddata");
            OutputStream outstream = new FileOutputStream(filepath);
            byte[] buffer = new byte[1024];
            int read;
            while ((read = instream.read(buffer)) != -1)
            {
                outstream.write(buffer, 0, read);
            }
            outstream.flush();
            outstream.close();
            instream.close();

        }
        catch (FileNotFoundException e)
        {
            Log.e(TAG,"Copy Files",e);
            e.printStackTrace();
        }
        catch (IOException e)
        {
            Log.e(TAG,"Copy Files",e);
            e.printStackTrace();
        }

        return ;
    }

    //check file on the device
    private void checkFile(File dir)
    {
        //if the dir not exist then create dir and copy
        if (!dir.exists() && dir.mkdirs())
        {
            copyFiles();
        }
        //if dir exists but the file doesn't then copy file
        if (dir.exists())
        {
            String datafilepath = datapath + "/tessdata/eng.traineddata";
            File datafile = new File(datafilepath);
            if (!datafile.exists())
            {
                copyFiles();
            }
        }
        return ;
    }

}

Util.java that uses OCRUtil:

static OCRUtil ocrUtil=new OCRUtil();

public static String getStringFromImageFile(String path)
{
    Log.d(TAG,"GetStrfromImg");
    ocrUtil.Init();
    Log.d(TAG,"Init done");
    return ocrUtil.processImage(path);
}

Logcat:

03-18 12:39:08.220 D/BTOPP Utility(5258): GetStrfromImg
03-18 12:39:08.220 V/BTOPP OCRHELPER(5258): OCR INIT
03-18 12:39:08.220 D/BTOPP OCRHELPER(5258): CheckFile done
03-18 12:39:08.230 D/dalvikvm(5258): Trying to load lib /data/app-lib/com.kyunggi.worker2-1/liblept.so 0x41a656b8
03-18 12:39:08.230 D/dalvikvm(5258): Added shared lib /data/app-lib/com.kyunggi.worker2-1/liblept.so 0x41a656b8
03-18 12:39:08.230 D/dalvikvm(5258): Trying to load lib /data/app-lib/com.kyunggi.worker2-1/libtess.so 0x41a656b8
03-18 12:39:08.250 D/dalvikvm(5258): Added shared lib /data/app-lib/com.kyunggi.worker2-1/libtess.so 0x41a656b8
03-18 12:39:08.250 D/BTOPP OCRHELPER(5258): NEW tessApi done
03-18 12:39:08.271 D/dalvikvm(5258): GC_EXPLICIT freed 205K, 58% free 5019K/11744K, paused 3ms+2ms, total 20ms
03-18 12:39:08.271 F/libc    (5258): Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread 7896 (Thread-410)
03-18 12:39:08.331 I/DEBUG   (262): pid: 5258, tid: 7896, name: Thread-410  >>> com.kyunggi.worker2 <<<
03-18 12:39:09.432 I/ActivityManager(982): Process com.kyunggi.worker2 (pid 5258) has died.
03-18 12:39:09.602 D/Zygote  (266): Process 5258 terminated by signal (11)

Project directory hierarchy:

app:

build/
jni/
jniLibs/
libs/
obj/
src/
build.gradle
proguard.rules.pro

app/jniLibs:

armeabi-v7a/
x86/

app/jniLibs/armeabi-v7a:

liblept.so (0.95MB)
libtess.so (1.9MB)

app/jniLibs/x86:

liblept.so (1.8MB)
libtess.so (3.3MB)

app/src/main/:

assets/
bin/
gen/
java/
res/
resources/
AndroidManifest.xml
device_admin_simple.xml

app/src/main/assets/tessdata/:

eng.traineddata(30MB)

...

Also I added android:largeheap="true" to AndroidManifest.xml.

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme"
    android:resizeableActivity = "true"
    android:largeHeap="true" >

I checked if the data file is copied correctly but it was perfect. And I added read/write permissions to my manifest.

What can I do more to make tess-two api work?

I finally got the answer. The cause was that I was using Traineddata with mismatched versions.