72   PetscCall(MatDestroy(&B));  in main()
80   PetscCall(MatDestroy(&B));  in main()
90     PetscCall(MatDestroy(&B));  in main()
92   PetscCall(MatDestroy(&C));  in main()
105     PetscCall(MatDestroy(&D));  in main()
106     PetscCall(MatDestroy(&C));  in main()
107     PetscCall(MatDestroy(&B));  in main()
121     PetscCall(MatDestroy(&C));  in main()
129     PetscCall(MatDestroy(&E));  in main()
131     PetscCall(MatDestroy(&D));  in main()
155     PetscCall(MatDestroy(&D));  in main()
156     PetscCall(MatDestroy(&C));  in main()
157     PetscCall(MatDestroy(&B));  in main()
180     PetscCall(MatDestroy(&C));  in main()
184     PetscCall(MatDestroy(&D));  in main()
185     PetscCall(MatDestroy(&B));  in main()
188   PetscCall(MatDestroy(&A));  in main()