redblack diff

diff --git a/example/redblack.c b/example/redblack.c
index f9b247d..de77667 100644
--- a/example/redblack.c
+++ b/example/redblack.c
@@ -1,6 +1,8 @@
 #include <stdio.h>
 #include <stdlib.h>

+#include <valgrind/mctracer.h>
+
 #define SIZE 1024

 int main()
@@ -10,6 +12,7 @@ int main()
        double sum = 0.0;

        m = (double*) malloc(sizeof(double)*SIZE*SIZE);
+       SSIM_TRACE_MATRIX(m, SIZE, SIZE, sizeof(double), "redblack");

        // init points
        for(i=0; i<SIZE; i++)
@@ -43,6 +46,8 @@ int main()
                                                m[ i*SIZE + j+1] )/4.0;
        }

+       SSIM_DELETE_MATRIX(m);
+
        // print checksum
        for(i=0; i<SIZE; i++)
                for(j=0; j<SIZE; j++)