diff --git a/fftma_module/gen/lib_src/fftma2.c b/fftma_module/gen/lib_src/fftma2.c
index 9ead660..341774b 100644
--- a/fftma_module/gen/lib_src/fftma2.c
+++ b/fftma_module/gen/lib_src/fftma2.c
@@ -69,30 +69,5 @@ void FFTMA2(struct vario_mod variogram, struct grid_mod grid, int n[3], struct r
     printf("Running with covar and ireal\n");
     fourt(covar, ireal, n, NDIM, 1, 0, workr, worki, cores);
 
-    /*organization of the input Gaussian white noise*/
-    solver = 0;
-    prebuild_gwn(grid, n, realin, realization, solver, cores, seed);
-
-    /*forward fourier transform of the GWN*/
-    printf("Running with realization and ireal\n");
-    fourt(realization, ireal, n, NDIM, 1, 0, workr, worki, cores);
-
-    /* build realization in spectral domain   */
-    build_real(n, NTOT, covar, realization, ireal, cores);
-
-    chunk_array_free(covar);
-    //remove("covar.txt");
-
-    /*backward fourier transform*/
-    printf("Running with realization and ireal\n");
-    fourt(realization, ireal, n, NDIM, 0, 1, workr, worki, cores);
-
-    chunk_array_free(ireal);
-    remove("ireal.txt");
-
-    free(workr);
-    free(worki);
-
-    /*output realization*/
-    clean_real(realin, n, grid, realization, realout, cores);
+    chunk_array_flush(covar);
 }