diff --git a/wta/benchmarks.org b/wta/benchmarks.org
index 26cf98e5705d508b4fe1fd5f24b45ba30d42359c..68cc7237663655d2a4de5750248440f4f3f5f470 100644
--- a/wta/benchmarks.org
+++ b/wta/benchmarks.org
@@ -836,6 +836,7 @@ ls -sh bench/wta_powerset_0,4_*_132178_* | tr " ," ",."
 ./bench.py run ../../copar/bin/copar --monoid powerset --symbols 0,4 --out-degree 50 --states 132177 --indiv --header
 #+END_SRC
 
+#+NAME: power_1
 #+RESULTS:
 | i |  states |    edges | initial-partition-size | final-partition-size | explicit-final-partition-size | size1-skipped | overall-duration | parse-duration | algorithm-duration | initialize-duration | refine-duration |
 | 0 | 6741027 | 13217700 |                      6 |               660882 |                        132177 |       9323005 |    265.849947508 |   53.024255888 |      200.012469965 |        32.711091055 |   156.049078211 |
@@ -844,9 +845,6 @@ ls -sh bench/wta_powerset_0,4_*_132178_* | tr " ," ",."
 | 3 | 6741027 | 13217700 |                      6 |               660882 |                        132177 |       9287608 |     266.57863175 |   53.338030998 |      200.492577153 |        33.341400299 |   155.694877544 |
 | 4 | 6741027 | 13217700 |                      6 |               660884 |                        132177 |       9347998 |     265.39360727 |   52.816564437 |      199.812521066 |         33.25935421 |   155.166041015 |
 
-#+NAME: power_1
-#+RESULTS:
-
 *** 4xX^2 mit out-degree 50
 
 #+BEGIN_SRC shell
@@ -1504,45 +1502,45 @@ Aus irgendeinem Grund läuft jetzt 48963 auch schon ins memory limit, deswegen 4
 ** Summary
 *** 4xX
 
-| Monoid   | States | States+Interm. |    Edges | init part | final part |       t_p |       t_i |       t_r |
-|----------+--------+----------------+----------+-----------+------------+-----------+-----------+-----------|
-| powerset | 132178 |        6741078 | 13217800 |         6 |     132178 | 53.134795 | 33.273151 | 153.36990 |
-| Z,max    | 114888 |        5859288 | 11488800 |       416 |     114888 | 58.957254 | 34.573327 | 66.278453 |
-| Word,or  | 113957 |        5811807 | 11395700 |        54 |     113957 | 61.587433 | 32.126284 | 109.72159 |
-#+TBLFM: $2=$3/51::@2$3=remote(power_1,@2$2)::@2$4=remote(power_1,@2$3)::@2$5=remote(power_1, @2$4)::@2$6=remote(power_1, @2$6)::@2$7=remote(power_1,@2$9)::@2$8=remote(power_1,@2$11)::@2$9=remote(power_1,@2$12)::@3$3=remote(zmax_1,@2$2)::@3$4=remote(zmax_1,@2$3)::@3$5=remote(zmax_1, @2$4)::@3$6=remote(zmax_1, @2$6)::@3$7=remote(zmax_1,@2$9)::@3$8=remote(zmax_1,@2$11)::@3$9=remote(zmax_1,@2$12)::@4$3=remote(wordor_1,@2$2)::@4$4=remote(wordor_1,@2$3)::@4$5=remote(wordor_1, @2$4)::@4$6=remote(wordor_1, @2$6)::@4$7=remote(wordor_1,@2$9)::@4$8=remote(wordor_1,@2$11)::@4$9=remote(wordor_1,@2$12)
+| Monoid   | States | States+Interm. |    Edges | File Size | init part | final part |       t_p |       t_i |       t_r |
+|----------+--------+----------------+----------+-----------+-----------+------------+-----------+-----------+-----------|
+| powerset | 132177 |        6741027 | 13217700 | 117 M     |         6 |     132177 | 53.024256 | 32.711091 | 156.04908 |
+| Z,max    | 114888 |        5859288 | 11488800 | 122 M     |       416 |     114888 | 58.957254 | 34.573327 | 66.278453 |
+| Word,or  | 113957 |        5811807 | 11395700 | 131 M     |        54 |     113957 | 61.587433 | 32.126284 | 109.72159 |
+#+TBLFM: $2=$3/51::@2$3=remote(power_1,@2$2)::@2$4=remote(power_1,@2$3)::@2$5=remote(power_1_file,@1$1)::@2$6=remote(power_1, @2$4)::@2$7=remote(power_1, @2$6)::@2$8=remote(power_1,@2$9)::@2$9=remote(power_1,@2$11)::@2$10=remote(power_1,@2$12)::@3$3=remote(zmax_1,@2$2)::@3$4=remote(zmax_1,@2$3)::@3$5=remote(zmax_1_file,@1$1)::@3$6=remote(zmax_1, @2$4)::@3$7=remote(zmax_1, @2$6)::@3$8=remote(zmax_1,@2$9)::@3$9=remote(zmax_1,@2$11)::@3$10=remote(zmax_1,@2$12)::@4$3=remote(wordor_1,@2$2)::@4$4=remote(wordor_1,@2$3)::@4$5=remote(wordor_1_file,@1$1)::@4$6=remote(wordor_1, @2$4)::@4$7=remote(wordor_1, @2$6)::@4$8=remote(wordor_1,@2$9)::@4$9=remote(wordor_1,@2$11)::@4$10=remote(wordor_1,@2$12)
 
 *** 4xX^2
 
-| Monoid   | States | States+Interm. |    Edges | init part | final part |       t_p |       t_i |       t_r |
-|----------+--------+----------------+----------+-----------+------------+-----------+-----------+-----------|
-| powerset |  98670 |        5032170 | 14800500 |         6 |      98670 | 46.524207 | 31.537502 | 213.98995 |
-| Z,max    |  95287 |        4859637 | 14293050 |       404 |      95287 | 54.223932 | 30.811424 | 108.36404 |
-| Word,or  |  92434 |        4714134 | 13865100 |        54 |      92434 | 55.730150 | 31.152971 | 144.08990 |
-#+TBLFM: $2=$3/51::@2$3=remote(power_2,@2$2)::@2$4=remote(power_2,@2$3)::@2$5=remote(power_2, @2$4)::@2$6=remote(power_2, @2$6)::@2$7=remote(power_2,@2$9)::@2$8=remote(power_2,@2$11)::@2$9=remote(power_2,@2$12)::@3$3=remote(zmax_2,@2$2)::@3$4=remote(zmax_2,@2$3)::@3$5=remote(zmax_2, @2$4)::@3$6=remote(zmax_2, @2$6)::@3$7=remote(zmax_2,@2$9)::@3$8=remote(zmax_2,@2$11)::@3$9=remote(zmax_2,@2$12)::@4$3=remote(wordor_2,@2$2)::@4$4=remote(wordor_2,@2$3)::@4$5=remote(wordor_2, @2$4)::@4$6=remote(wordor_2, @2$6)::@4$7=remote(wordor_2,@2$9)::@4$8=remote(wordor_2,@2$11)::@4$9=remote(wordor_2,@2$12)
-
-*** 4xX^3
-
-| Monoid   | States | States+Interm. |    Edges | init part | final part |       t_p |       t_i |       t_r |
-|----------+--------+----------------+----------+-----------+------------+-----------+-----------+-----------|
-| powerset |  85016 |        4335816 | 17003200 |         6 |      85016 | 47.614393 | 20.446586 | 167.58715 |
-| Z,max    |  70660 |        3603660 | 14132000 |       397 |      70660 | 49.287429 | 25.886319 | 82.245760 |
-| Word,or  |  69623 |        3550773 | 13924600 |        54 |      69623 | 49.986173 | 25.229488 | 127.06052 |
-#+TBLFM: $2=$3/51::@2$3=remote(power_3,@2$2)::@2$4=remote(power_3,@2$3)::@2$5=remote(power_3, @2$4)::@2$6=remote(power_3, @2$6)::@2$7=remote(power_3,@2$9)::@2$8=remote(power_3,@2$11)::@2$9=remote(power_3,@2$12)::@3$3=remote(zmax_3,@2$2)::@3$4=remote(zmax_3,@2$3)::@3$5=remote(zmax_3, @2$4)::@3$6=remote(zmax_3, @2$6)::@3$7=remote(zmax_3,@2$9)::@3$8=remote(zmax_3,@2$11)::@3$9=remote(zmax_3,@2$12)::@4$3=remote(wordor_3,@2$2)::@4$4=remote(wordor_3,@2$3)::@4$5=remote(wordor_3, @2$4)::@4$6=remote(wordor_3, @2$6)::@4$7=remote(wordor_3,@2$9)::@4$8=remote(wordor_3,@2$11)::@4$9=remote(wordor_3,@2$12)
-
-*** 4xX^4
-
-| Monoid   | States | States+Interm. |    Edges | init part | final part |       t_p |       t_i |       t_r |
-|----------+--------+----------------+----------+-----------+------------+-----------+-----------+-----------|
-| powerset |  59596 |        3039396 | 14899000 |         6 |      59596 | 41.065065 | 25.383502 | 121.31631 |
-| Z,max    |  62665 |        3195915 | 15666250 |       397 |      62665 | 48.473165 | 26.234721 | 66.312404 |
-| Word,or  |  57319 |        2923269 | 14329750 |        54 |      57319 | 47.318312 | 25.807647 | 115.01576 |
-#+TBLFM: $2=$3/51::@2$3=remote(power_4,@2$2)::@2$4=remote(power_4,@2$3)::@2$5=remote(power_4, @2$4)::@2$6=remote(power_4, @2$6)::@2$7=remote(power_4,@2$9)::@2$8=remote(power_4,@2$11)::@2$9=remote(power_4,@2$12)::@3$3=remote(zmax_4,@2$2)::@3$4=remote(zmax_4,@2$3)::@3$5=remote(zmax_4, @2$4)::@3$6=remote(zmax_4, @2$6)::@3$7=remote(zmax_4,@2$9)::@3$8=remote(zmax_4,@2$11)::@3$9=remote(zmax_4,@2$12)::@4$3=remote(wordor_4,@2$2)::@4$4=remote(wordor_4,@2$3)::@4$5=remote(wordor_4, @2$4)::@4$6=remote(wordor_4, @2$6)::@4$7=remote(wordor_4,@2$9)::@4$8=remote(wordor_4,@2$11)::@4$9=remote(wordor_4,@2$12)
-
-*** 4xX^5
-
-| Monoid   | States | States+Interm. |    Edges | init part | final part |       t_p |       t_i |       t_r |
-|----------+--------+----------------+----------+-----------+------------+-----------+-----------+-----------|
-| powerset |  49375 |        2518125 | 14812500 |         6 |      49375 | 38.769441 | 24.415686 | 90.703822 |
-| Z,max    |  49926 |        2546226 | 14977800 |       376 |      49926 | 44.887706 | 20.851582 | 52.506482 |
-| Word,or  |  48962 |        2497062 | 14688600 |        54 |      48962 | 45.179623 | 20.079035 | 92.723852 |
-#+TBLFM: $2=$3/51::@2$3=remote(power_5,@2$2)::@2$4=remote(power_5,@2$3)::@2$5=remote(power_5, @2$4)::@2$6=remote(power_5, @2$6)::@2$7=remote(power_5,@2$9)::@2$8=remote(power_5,@2$11)::@2$9=remote(power_5,@2$12)::@3$3=remote(zmax_5,@2$2)::@3$4=remote(zmax_5,@2$3)::@3$5=remote(zmax_5, @2$4)::@3$6=remote(zmax_5, @2$6)::@3$7=remote(zmax_5,@2$9)::@3$8=remote(zmax_5,@2$11)::@3$9=remote(zmax_5,@2$12)::@4$3=remote(wordor_5,@2$2)::@4$4=remote(wordor_5,@2$3)::@4$5=remote(wordor_5, @2$4)::@4$6=remote(wordor_5, @2$6)::@4$7=remote(wordor_5,@2$9)::@4$8=remote(wordor_5,@2$11)::@4$9=remote(wordor_5,@2$12)
+| Monoid   | States | States+Interm. |    Edges | File Size | init part | final part |       t_p |       t_i |       t_r |
+|----------+--------+----------------+----------+-----------+-----------+------------+-----------+-----------+-----------|
+| powerset |  98670 |        5032170 | 14800500 | 123 M     |         6 |      98670 | 46.231443 | 31.400596 | 212.32322 |
+| Z,max    |  95287 |        4859637 | 14293050 | 136 M     |       404 |      95287 | 54.223932 | 30.811424 | 108.36404 |
+| Word,or  |  92434 |        4714134 | 13865100 | 141 M     |        54 |      92434 | 55.730150 | 31.152971 | 144.08990 |
+#+TBLFM: $2=$3/51::@2$3=remote(power_2,@2$2)::@2$4=remote(power_2,@2$3)::@2$5=remote(power_2_file,@1$1)::@2$6=remote(power_2, @2$4)::@2$7=remote(power_2, @2$6)::@2$8=remote(power_2,@2$9)::@2$9=remote(power_2,@2$11)::@2$10=remote(power_2,@2$12)::@3$3=remote(zmax_2,@2$2)::@3$4=remote(zmax_2,@2$3)::@3$5=remote(zmax_2_file,@1$1)::@3$6=remote(zmax_2, @2$4)::@3$7=remote(zmax_2, @2$6)::@3$8=remote(zmax_2,@2$9)::@3$9=remote(zmax_2,@2$11)::@3$10=remote(zmax_2,@2$12)::@4$3=remote(wordor_2,@2$2)::@4$4=remote(wordor_2,@2$3)::@4$5=remote(wordor_2_file,@1$1)::@4$6=remote(wordor_2, @2$4)::@4$7=remote(wordor_2, @2$6)::@4$8=remote(wordor_2,@2$9)::@4$9=remote(wordor_2,@2$11)::@4$10=remote(wordor_2,@2$12)
+
+*** 4xx^3
+
+| Monoid   | States | States+Interm. |    Edges | File Size | init part | final part |       t_p |       t_i |       t_r |
+|----------+--------+----------------+----------+-----------+-----------+------------+-----------+-----------+-----------|
+| powerset |  85016 |        4335816 | 17003200 | 138 M     |         6 |      85016 | 47.614393 | 20.446586 | 167.58715 |
+| Z,max    |  70660 |        3603660 | 14132000 | 127 M     |       397 |      70660 | 49.287429 | 25.886319 | 82.245760 |
+| Word,or  |  69623 |        3550773 | 13924600 | 132 M     |        54 |      69623 | 49.986173 | 25.229488 | 127.06052 |
+#+TBLFM: $2=$3/51::@2$3=remote(power_3,@2$2)::@2$4=remote(power_3,@2$3)::@2$5=remote(power_3_file,@1$1)::@2$6=remote(power_3, @2$4)::@2$7=remote(power_3, @2$6)::@2$8=remote(power_3,@2$9)::@2$9=remote(power_3,@2$11)::@2$10=remote(power_3,@2$12)::@3$3=remote(zmax_3,@2$2)::@3$4=remote(zmax_3,@2$3)::@3$5=remote(zmax_3_file,@1$1)::@3$6=remote(zmax_3, @2$4)::@3$7=remote(zmax_3, @2$6)::@3$8=remote(zmax_3,@2$9)::@3$9=remote(zmax_3,@2$11)::@3$10=remote(zmax_3,@2$12)::@4$3=remote(wordor_3,@2$2)::@4$4=remote(wordor_3,@2$3)::@4$5=remote(wordor_3_file,@1$1)::@4$6=remote(wordor_3, @2$4)::@4$7=remote(wordor_3, @2$6)::@4$8=remote(wordor_3,@2$9)::@4$9=remote(wordor_3,@2$11)::@4$10=remote(wordor_3,@2$12)
+
+*** 4xx^4
+
+| Monoid   | States | States+Interm. |    Edges | File Size | init part | final part |       t_p |       t_i |       t_r |
+|----------+--------+----------------+----------+-----------+-----------+------------+-----------+-----------+-----------|
+| powerset |  59596 |        3039396 | 14899000 | 119 M     |         6 |      59596 | 41.065065 | 25.383502 | 121.31631 |
+| Z,max    |  62665 |        3195915 | 15666250 | 136 M     |       397 |      62665 | 48.473165 | 26.234721 | 66.312404 |
+| Word,or  |  57319 |        2923269 | 14329750 | 130 M     |        54 |      57319 | 47.318312 | 25.807647 | 115.01576 |
+#+TBLFM: $2=$3/51::@2$3=remote(power_4,@2$2)::@2$4=remote(power_4,@2$3)::@2$5=remote(power_4_file,@1$1)::@2$6=remote(power_4, @2$4)::@2$7=remote(power_4, @2$6)::@2$8=remote(power_4,@2$9)::@2$9=remote(power_4,@2$11)::@2$10=remote(power_4,@2$12)::@3$3=remote(zmax_4,@2$2)::@3$4=remote(zmax_4,@2$3)::@3$5=remote(zmax_4_file,@1$1)::@3$6=remote(zmax_4, @2$4)::@3$7=remote(zmax_4, @2$6)::@3$8=remote(zmax_4,@2$9)::@3$9=remote(zmax_4,@2$11)::@3$10=remote(zmax_4,@2$12)::@4$3=remote(wordor_4,@2$2)::@4$4=remote(wordor_4,@2$3)::@4$5=remote(wordor_4_file,@1$1)::@4$6=remote(wordor_4, @2$4)::@4$7=remote(wordor_4, @2$6)::@4$8=remote(wordor_4,@2$9)::@4$9=remote(wordor_4,@2$11)::@4$10=remote(wordor_4,@2$12)
+
+*** 4xx^5
+
+| Monoid   | States | States+Interm. |    Edges | File Size | init part | final part |       t_p |       t_i |       t_r |
+|----------+--------+----------------+----------+-----------+-----------+------------+-----------+-----------+-----------|
+| powerset |  49375 |        2518125 | 14812500 | 116 M     |         6 |      49375 | 38.769441 | 24.415686 | 90.703822 |
+| Z,max    |  49926 |        2546226 | 14977800 | 127 M     |       376 |      49926 | 44.887706 | 20.851582 | 52.506482 |
+| Word,or  |  48962 |        2497062 | 14688600 | 129 M     |        54 |      48962 | 45.179623 | 20.079035 | 92.723852 |
+#+TBLFM: $2=$3/51::@2$3=remote(power_5,@2$2)::@2$4=remote(power_5,@2$3)::@2$5=remote(power_5_file,@1$1)::@2$6=remote(power_5, @2$4)::@2$7=remote(power_5, @2$6)::@2$8=remote(power_5,@2$9)::@2$9=remote(power_5,@2$11)::@2$10=remote(power_5,@2$12)::@3$3=remote(zmax_5,@2$2)::@3$4=remote(zmax_5,@2$3)::@3$5=remote(zmax_5_file,@1$1)::@3$6=remote(zmax_5, @2$4)::@3$7=remote(zmax_5, @2$6)::@3$8=remote(zmax_5,@2$9)::@3$9=remote(zmax_5,@2$11)::@3$10=remote(zmax_5,@2$12)::@4$3=remote(wordor_5,@2$2)::@4$4=remote(wordor_5,@2$3)::@4$5=remote(wordor_5_file,@1$1)::@4$6=remote(wordor_5, @2$4)::@4$7=remote(wordor_5, @2$6)::@4$8=remote(wordor_5,@2$9)::@4$9=remote(wordor_5,@2$11)::@4$10=remote(wordor_5,@2$12)