we are getting the following error in our c program : munmap$\_$chunk $()$: invalid pointer. Kindly find the screenshot to resolve our issuestruct s$1\{$

int start;

int end;

int $*$a;

int countPrime;

$\}$;

int prime$($int num$)$

$\{$

if $($num return $$;

for $($int $i=2$;$i($num $\frac{?}{2}$; $i++)$

if $($num $\%i==0)$ return $$;

return $1$;

$\}$

void $*$tfunction$($void $*$args$)\{$

struct $s1*$t$1=($struct $s1**)$ args;

int start $=$ t$1$ start;

int end $=$ t$1$ end;

int count $=$;

for$($int $i=$ start; $i$ end; $i++$

int $n=t1a[i]$;

if $($prime$($n$))\{$

count $++$ ;

$\}$

$\}$

t$1$ countPrime $=$ count;

int $*$tr $=$ malloc$($sizeof$($int$))$;

$*$tr $=$ count;

pthread$\_$exit$($tr$)$;

$\}$