Linked List C program results in segmentation fault:11

I have a program which I am working on for an assignment. This has to be a linked list which reads character by character from a file and then creates words which then get written to the output file. I am able to compile the code with just warnings and no errors. When I try to run the program with an input.txt and output.txt the program runs and then terminal produces the first line which is file opened followed by segmentation fault:11 I have no idea how to fix this or work around it to get it fixed.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct s_words {
    char *str;
    int count;
    struct s_words* next;  
}
words;

words *create_words(char *word) {
    //allocate space for the structure
    words *newWord = malloc(15);
    if (NULL != newWord) {
        //allocate space for storing the new word in "str"
        //if str was array of fixed size, storage would be wasted
        newWord->str = (char *)malloc(strlen(word));
        strcpy(newWord->str, word); //copy word into newWord->str
        newWord->str[strlen(word)] = '\0';
        newWord->count = 1;   //initialize count to 1;
        newWord->next = NULL; //initialize next;
    }
    return newWord;
}

words *add_word(words *wordList, char *word) {
    int found = 0;
    words *temp = wordList;
    // search if word exists in the list; if so, make found=1
    while (temp != NULL) {
        if (strcmp(temp, word)) {  //use strcmp command
            found = 1;
            wordList->count++; //increment count;
            return wordList;
        } else {
            temp = temp->next;  //update temp
        }
    }
    if (found == 0) {  //new word
        words *newWord = create_words(word); 
        if (NULL != newWord) {
            wordList = newWord;
            newWord->next = temp;
            //??  Insert new word at the head of the list
        }
        return newWord;
    }
}

int main(int argc, char *argv[]) {
    words *mywords;  //head of linked list containing words
    mywords = NULL;

    FILE *myFile;
    myFile = fopen(argv[0], "r");  //first parameter is input file
    if (myFile == 0) {
        printf("file not opened\n");
        return 1;
    } else {
        printf("file opened \n");
    }

    //start reading file character by character;
    //when word has been detected; call the add_word function
    int ch, word = 0, k = 0;
    char thisword[100];
    while ((ch = fgetc(myFile)) != EOF) {
        if (ch == ' ') { //detect new word? Check if ch is a delimiter
            if (word == 1) { //make sure previous character was not delimiter
                printf("hi");
                word = 0;
                thisword[k] = '\0'; //make the kth character of thisword as \0

                add_word(mywords, thisword);   //now call add_word to add thisword into the list
                mywords = NULL;
                k = 0;
            }
        } else {
            word = 1;
            thisword[k] = ch; //make the kth character of thisword equal to ch
            k++;
        }
    }
    fclose(myFile); 

    words *currword;
    printf("printing list\n");

    words *temp;
    //Traverse list and print each word and its count to outputfile
    //output file is second parameter being passed

    FILE *outputFile;
    outputFile = fopen(argv[1], "w");
    if (outputFile == 0) {
        printf("file not opened\n");
        return 1;
    } else {
        printf("file opened \n");
    }

    currword = mywords;

    while (currword != NULL) {
        fprintf(outputFile, "HI");
        fprintf(outputFile, "%s %d" , currword, currword->count);
        temp = currword;
        currword = temp->next;
    }
    return 0;
}

Any help would be greatly appreciated

EDIT Here is the updated code: CODE

The new output is now this: here are the files test.txt results.txt file opened hihihihihihihihihihihihihihihiprinting list file not opened Abort trap: 6