Segmentation Fault (Core daumped) in this scenario

my text file is IP_CONFIG.txt

"192.168.128.3" IP_CS 
"192.168.128.2" IP_HMI 
"192.168.128.1" IP_OBCU 
"192.168.128.4" IP_ASR 
"127.0.0.1" IP_RSO 
"127.0.0.1" IP_RSO_D 
"1901" PORT_CS 
"1901" PORT_HMI
"1901" PORT_OBCU
"3567" PORT_ASR
"4444" PORT_RSO
"7777" PORT_RSO_D

My code is

   #include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/ip.h> 
#include <arpa/inet.h>
#include <stdio.h>
#include <unistd.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>



#define MAX_DATE 100
# define BUFLEN 1024
#define ROW 11
#define COL 2
#define MAXWORDS 24

int main(int argc,char **argv)
{
    //Declared variables
    int     sock,sock_RST; // socket name
    int     bytes_read; // variable for recvfrom
    int     addrlen;    // length of address
    int     i=0,j=0,k=0, z=0;        // counters
    unsigned char   ca[BUFLEN], last_OBCU_msg[BUFLEN], last_HMI_msg[BUFLEN],rcvd_ASR_msg[BUFLEN]; // Data buffers




    struct      sockaddr_in server_addr,HMI_addr,OBCU_addr,ASR_addr,RSO_addr,test_addr;//addresses IP PORT
    struct      sockaddr_in RSO_addr_d;
    const char  yes = 1;
    int             TAG_ASR = 0;

    // Create a lof file

    time_t now;
    char the_date[MAX_DATE];
    the_date[0] = '\0';
    now = time(NULL);
    strftime(the_date, MAX_DATE, "CS_LOG_%H_%M_%d_%m_%Y"".txt", gmtime(&now));  
    chdir("/home/bsnayak/CS_LOG/");
    FILE *file = fopen(the_date, "a");

    //Read IPS and PORTS from a text file
    FILE *fp = fopen("IP_CONFIG.txt","r");
        int ii=0, jj;
        char *words=NULL,*word=NULL,c;
        char *allwords[MAXWORDS];

        while ((c = fgetc(fp))!= EOF)
    {
        ii++;
        if (c=='\n')
        { 
            c = ' '; 
        }
        words = (char *)realloc(words, (ii+1) * sizeof(char));
        words[ii-1]=c;

    }


    words[ii] = '\0';
    word=strtok(words," ");
    ii=0;
    while(word!= NULL && ii < MAXWORDS){
        //printf("%s\n",word);
        allwords[ii] = malloc(strlen(word)+1);
        strcpy(allwords[ii], word);
        word = strtok(NULL," ");

        allwords[ii][strlen(word)] = '\0';
        ii++;        
    }


    printf("\nNow printing each saved string:\n");
    for (jj=0; jj<ii; jj++){
        printf("String %d: %s\n", jj, allwords[jj]);
        }
   char * IP_CS   = allwords[0];    
   char *IP_HMI   = allwords[2];   
   char *IP_OBCU  = allwords[4];      
   char *IP_ASR   = allwords[6];      
   char *IP_RSO   = allwords[8];      
   char *IP_RSO_D = allwords[10]; 

   int PORT_CS   = atoi(allwords[12]);
   int PORT_HMI   = atoi(allwords[14]); 
   int PORT_OBCU   = atoi(allwords[16]);
   int PORT_ASR   = atoi(allwords[18]);
   int PORT_RSO   = atoi(allwords[20]);
   int PORT_RSO_D = atoi(allwords[22]);


  free(allwords[MAXWORDS]);


    setbuf(stdout, NULL);   
    addrlen= sizeof(struct sockaddr_in);

    // Create the Socket for all connections except RST
    if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
    {
        perror("Socket Creation Error");
        exit(1);
    }

    // Create the Socket for RST section
    if ((sock_RST = socket(PF_INET, SOCK_DGRAM, 0)) == -1)
    {
        perror("Socket Creation Error");
        exit(1);
    }

    // make CS socket non blocking and reusable
    fcntl(sock, F_SETFL, O_NONBLOCK);
    if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(int)) < 0)
    {
    perror("Reuse option\n");
    close(sock);
    exit(1);
    }

    // make RST socket non blocking and reusable
    fcntl(sock_RST, F_SETFL, O_NONBLOCK);
    if (setsockopt(sock_RST, SOL_SOCKET, SO_REUSEADDR, (char*)&yes, sizeof(int)) < 0)
    {
    perror("Reuse option\n");
    close(sock_RST);
    exit(1);
    }

    printf("\nchecked1\n");
    // Control server properties
    bzero(&(server_addr.sin_zero),sizeof(server_addr));
    server_addr.sin_family = AF_INET;
    server_addr.sin_port = htons(PORT_CS);
    server_addr.sin_addr.s_addr =  inet_addr(IP_CS);  //inet_addr("192.168.128.3"); //

    // HMI server properties 
    bzero(&(HMI_addr.sin_zero),sizeof(HMI_addr));
    HMI_addr.sin_family = AF_INET;
    HMI_addr.sin_port = htons(PORT_HMI);
    HMI_addr.sin_addr.s_addr =  inet_addr(IP_HMI);

    // OBCU server properties
    bzero(&(OBCU_addr.sin_zero),sizeof(OBCU_addr));
    OBCU_addr.sin_family = AF_INET;
    OBCU_addr.sin_port = htons(PORT_OBCU);
    OBCU_addr.sin_addr.s_addr =  inet_addr(IP_OBCU);

    // ASR Server properties

    bzero(&(ASR_addr.sin_zero),sizeof(ASR_addr));
    ASR_addr.sin_family = AF_INET;
    ASR_addr.sin_port = htons(PORT_ASR);
    ASR_addr.sin_addr.s_addr =  inet_addr(IP_ASR);

    // RSO server properties

    bzero(&(RSO_addr.sin_zero),sizeof(RSO_addr));
    RSO_addr.sin_family = AF_INET;
    RSO_addr.sin_port = htons(PORT_RSO);
    RSO_addr.sin_addr.s_addr =  inet_addr(IP_RSO);

    // RSO destination properties  (To which you send string content)

    bzero(&(RSO_addr_d.sin_zero),sizeof(RSO_addr_d));
    RSO_addr_d.sin_family = AF_INET;
    RSO_addr_d.sin_port = htons(PORT_RSO_D);
    RSO_addr_d.sin_addr.s_addr =  inet_addr(IP_RSO_D);


    // BIND Controlserver to the main socket
    if (bind(sock,(struct sockaddr *)&server_addr,sizeof(struct sockaddr)) != 0)
    {
        perror("Bind Error");
        close(sock);
        exit(1);
    }

    printf("checked2\n");

    // Bind RSO for second socket
    if (bind(sock_RST,(struct sockaddr *)&RSO_addr,sizeof(struct sockaddr)) != 0)
    {
        perror("Bind Error");
        close(sock_RST);
        exit(1);
    }

    printf("checked3\n");

    fprintf(file,"Communication Starts- Below is the Log datas\n\n");
    fprintf(file,"--------------------------------------------------------");
    fprintf(file,"\n\n");

// MAIN WHILE LOOP BEGIN

//



    fclose(file);
    return 0;
}

My objective is to get the IP & Ports from the txt files and use it in defining the socket addresses as a variable. So that i can modify the txt file and not the code.

I am getting this error

Segmentation fault (core dumped)

Kindly tell, How to solve it. Incase, Please post the updated code.

Thanks in advance