diff --git a/Makefile.dev b/Makefile.dev
index 47092834b30606db4beb2802da20388c2c35f75e..a5de23956f0d3a7baae5f9019aa4333137d0e731 100644
--- a/Makefile.dev
+++ b/Makefile.dev
@@ -35,15 +35,9 @@ README.md: README.txt
 uv:update_version
 update_version:
 	git pull
-	rm -f src/lv6version.ml
-	make src/lv6version.ml
-ifneq (,$(findstring -,$(VERSION)))
-	echo "won't update _oasis"
-else
-	cp _oasis _oasis.save
-	cat _oasis.save | sed "s/^Version:.*/Version:     $(VERSION)/" > _oasis
+	rm -f lib/lv6version.ml
+	make lib/lv6version.ml
 	make clean && make
-endif
 
 BRANCH=$(shell git rev-parse --abbrev-ref HEAD)
 
diff --git a/arduino/led_puzzle/Makefile b/arduino/led_puzzle/Makefile
index d3f64c7ed525cbc7f28cf964ebd169833f12398e..ec1b45bef2ac8074082d1930b42d846bce8599cf 100644
--- a/arduino/led_puzzle/Makefile
+++ b/arduino/led_puzzle/Makefile
@@ -7,13 +7,13 @@ $(FILE)_$(NODE)_loop:
 	mkdir $(FILE)_$(NODE)_loop
 
 v6: led.lus $(FILE)_$(NODE)_loop
-	lus2lic -2c $(FILE).lus -n $(NODE)
+	lv6 -2c $(FILE).lus -n $(NODE)
 	mv *.h $(FILE)_$(NODE)_loop/
 	mv $(FILE)_$(NODE).c $(FILE)_$(NODE)_loop/$(FILE)_$(NODE).cpp
 
 %.simu:
 	cp lustre/arduino_$*.lus arduino_puzzle.lus
-	luciole-rif lus2lic -exec -rif led.lus -n $* &
+	luciole-rif lv6 -exec -rif led.lus -n $* &
 
 %.arduino:
 	cp lustre/arduino_$*.lus arduino_puzzle.lus
@@ -21,7 +21,7 @@ v6: led.lus $(FILE)_$(NODE)_loop
 
 %.no_sol:
 	cp lustre/arduino_$*.lus arduino_puzzle.lus
-	lus2lic -ec -o no_sol.ec led.lus -n $*_has_no_solution
+	lv6 -ec -o no_sol.ec led.lus -n $*_has_no_solution
 	ecverif no_sol.ec -diag > $*.diag ; echo >> $*.diag || echo "$*: il existe une solution ! La voici:" \
        echo "$*: ce puzzle est insoluble"
 	cat $*.diag | sed 's/true//'  | sed 's/not\ red//' |  sed 's/not\ red\ or//'  |  sed 's/not\ blue\ or//'  |  sed 's/not\ blue//' | sed 's/\ and\ //'  
@@ -29,12 +29,12 @@ v6: led.lus $(FILE)_$(NODE)_loop
 
 %.test:
 	cp lustre/arduino_$*.lus arduino_puzzle.lus
-	rdbg -lurette -l 1000  -sut "lus2lic led.lus -n $*" -env "lutin env.lut -n random_env" -oracle "lus2lic led.lus -n $*_has_no_solution" -o $*.rif || echo "Ce puzzle a une solution !"
+	rdbg -lurette -l 1000  -sut "lv6 led.lus -n $*" -env "lutin env.lut -n random_env" -oracle "lv6 led.lus -n $*_has_no_solution" -o $*.rif || echo "Ce puzzle a une solution !"
 	gnuplot-rif $*.rif -no-display
 	gnuplot  -e 'set terminal qt size 1800,400' $*.gp
 
 %.debug:
-	rdbg -emacs -sut "lus2lic led.lus -n $*"
+	rdbg -emacs -sut "lv6 led.lus -n $*"
 
 
 clean:
@@ -74,3 +74,20 @@ s6: puzzle6.simu
 p6: puzzle6.no_sol
 t6: puzzle6.test
 
+
+TARGET=led
+USR_SRCS= \
+	./objs/mycode_puzzle.cpp \
+	led_arduino_puzzle_loop.cpp \
+
+
+
+# Thinks that can be  customized
+USR_CPP_FLAGS=
+USR_CC_FLAGS=
+USR_INCLS=-I./objs
+
+./objs/mycode_puzzle.cpp: led.lus
+	cd ./objs; lv6 ../led.lus -n arduino_puzzle -2c; mv arduino_puzzle_arduino_puzzle.c arduino_puzzle_arduino_puzzle.cpp
+
+include ArduinoMega.mk
diff --git a/arduino/led_puzzle/doc/puzzle.org b/arduino/led_puzzle/doc/puzzle.org
index 52977d7b284978e73fa388d471da17ab786ae166..11e3be4f9bfbdbe97b6585c31a6c5663a45b5b99 100644
--- a/arduino/led_puzzle/doc/puzzle.org
+++ b/arduino/led_puzzle/doc/puzzle.org
@@ -84,7 +84,8 @@ par un bouton rouge et un bouton bleu, et *contrôlant* l'allumage de 5
 leds.
 
 #+BEGIN_CENTER
-\includegraphics[width=.4\linewidth]{arduino.jpg}
+\includegraphics[width=.4\linewidth]{arduino.jpg} 
+\includegraphics[width=.4\linewidth]{../fig/led.png}
 #+END_CENTER
 
 
@@ -130,7 +131,7 @@ automatiser la réponse à ces petits puzzles.
 
 - Puzzle 6 
   - Bouton  rouge : inverse l'état de la led 1
-  - Bouton bleu : allume la led  suivant la première led  éteinte (en
+  - Bouton bleu : inverse l'état  la led  suivant la première led  éteinte (en
     partant de la led1)
 
 
diff --git a/arduino/led_puzzle/doc/puzzle.pdf b/arduino/led_puzzle/doc/puzzle.pdf
index 26a8ed9b69a9f3855cc6e1e2edaa3bcf36a23590..e93f68fa5792fb86a1a9c556b36cb3299ebe438a 100644
Binary files a/arduino/led_puzzle/doc/puzzle.pdf and b/arduino/led_puzzle/doc/puzzle.pdf differ
diff --git a/arduino/led_puzzle/fig/boum.png b/arduino/led_puzzle/fig/boum.png
new file mode 100644
index 0000000000000000000000000000000000000000..2cd603426dceea4e423cdd8897d67e2a4f185c2c
Binary files /dev/null and b/arduino/led_puzzle/fig/boum.png differ
diff --git a/arduino/led_puzzle/fig/interro.png b/arduino/led_puzzle/fig/interro.png
new file mode 100644
index 0000000000000000000000000000000000000000..0d88998e53f016c2c63940e099eb082a4388bfb5
Binary files /dev/null and b/arduino/led_puzzle/fig/interro.png differ
diff --git a/arduino/led_puzzle/fig/led.fig b/arduino/led_puzzle/fig/led.fig
new file mode 100644
index 0000000000000000000000000000000000000000..d8bbb5cb0a7fd7ca962377ec863080229c0fc24d
--- /dev/null
+++ b/arduino/led_puzzle/fig/led.fig
@@ -0,0 +1,107 @@
+#FIG 3.2  Produced by xfig version 3.2.6a
+Landscape
+Center
+Metric
+A4
+100.00
+Single
+-2
+1200 2
+6 7223 1823 8167 2317
+1 2 0 1 0 7 110 -1 -1 0.000 1 0.0000 7695 2070 472 247 7223 2070 8167 2070
+4 0 0 110 -1 18 12 0.0000 4 135 525 7425 2160 10101\001
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+1 2 0 1 0 7 110 -1 -1 0.000 1 0.0000 4095 5490 472 247 3623 5243 4568 5738
+4 0 0 110 -1 18 12 0.0000 4 135 525 3825 5580 11001\001
+-6
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+1 2 0 1 0 7 110 -1 -1 0.000 1 0.0000 7740 4410 472 247 7268 4163 8213 4658
+4 0 0 110 -1 18 12 0.0000 4 135 525 7470 4500 00010\001
+-6
+6 3668 4163 4612 4657
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+4 0 0 70 -1 18 12 0.0000 4 135 525 3870 4500 01001\001
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+1 2 0 1 0 7 95 -1 -1 0.000 1 0.0000 2385 1800 472 247 1913 1553 2858 2048
+4 0 0 95 -1 18 12 0.0000 4 135 525 2115 1890 00100\001
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+1 2 0 1 4 7 50 -1 -1 0.000 1 0.0000 11193 3139 1023 1091 10170 3139 12216 3139
+2 5 0 1 4 -1 50 -1 20 0.000 0 0 -1 0 0 5
+	0 boum.png
+	 10638 2706 11853 2706 11853 3696 10638 3696 10638 2706
+4 0 4 50 -1 18 12 0.0000 4 135 525 10863 2481 11111\001
+-6
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+-6
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+1 2 0 3 -1 11 50 -1 20 0.000 1 0.0000 2340 3285 472 247 1868 3285 2812 3285
+2 1 0 5 1 7 60 -1 -1 0.000 0 0 -1 1 0 2
+	1 1 5.00 105.00 150.00
+	 2655 3060 3690 2160
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+	1 1 5.00 105.00 150.00
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+	1 1 5.00 105.00 150.00
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+	 2475 3015 2475 2025
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+	1 1 5.00 105.00 150.00
+	 2115 2025 2115 3060
+2 5 0 1 0 -1 50 -1 20 0.000 0 0 -1 0 0 5
+	0 interro.png
+	 8505 2160 10080 2160 10080 4140 8505 4140 8505 2160
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diff --git a/arduino/led_puzzle/fig/tex/main.tex b/arduino/led_puzzle/fig/tex/main.tex
new file mode 100644
index 0000000000000000000000000000000000000000..4763a5d7498a9aeadce559f121482b9ec503118e
--- /dev/null
+++ b/arduino/led_puzzle/fig/tex/main.tex
@@ -0,0 +1,44 @@
+\documentclass[nowasysym]{beamer}
+\usepackage[utf8]{inputenc}
+\usepackage[T1]{fontenc}
+
+\usepackage{graphicx}
+\usepackage{textcomp}
+\usepackage{marvosym}
+\input{mybeamer}
+
+\usepackage{latexsym}
+\usepackage{amssymb}
+\usepackage{hyperref}
+\tolerance=1000
+\usepackage{color}
+
+\title{Ce programme est-il correct ?}
+\author{Verimag}
+\date{Fête de la science}
+\hypersetup{
+  pdfkeywords={},
+  pdfsubject={},
+  pdfcreator={Emacs Org-mode version 7.8.03}}
+
+\usefonttheme{structurebold}
+
+\begin{document}
+
+
+\begin{frame}
+\frametitle{Ce programme est-il correct ?}
+C'est-à-dire,  existe-t'il un  chemin  de l'état  initial vers  l'état
+dangereux ?
+
+\scalebox{0.5}{\input{led}}
+
+\label{sec-1-1}
+
+
+\end{frame}
+
+
+\end{document}
+
+
diff --git a/arduino/led_puzzle/notes.org b/arduino/led_puzzle/notes.org
index 9a71631592e2cab9c3582ea7bff20706a0a0f957..090579ecfb74672c6d05da45d63f42e0f766264d 100644
--- a/arduino/led_puzzle/notes.org
+++ b/arduino/led_puzzle/notes.org
@@ -1,7 +1,9 @@
 
 * Préliminaire
 
-1. installer l'utilitaire arduino (apt-get install arduino)
+1. installer l'utilitaire  arduino (apt-get install arduino)  -> si ca
+   ne fonctionne pas (/dev/ttyACM0  grisé), installer une version plus
+   recente depuis le site d'arduino !!
 2. récupérer le fichier file:/home/jahier/.arduino/preferences.txt
 3. le lancer (shell:arduino)
 4. ouvrir avec le fichier file:led_arduino_puzzle_loop.c
@@ -10,14 +12,14 @@
 
 ** puzzle 1
 
-a1 : lustre compil du puzzle1 (file:led.lus::21)
-s1 : simu avec luciole
-t1 : test aleatoire avec lurette
-p1 : model-checking avec lesar
+make a1 : lustre compil du puzzle1 (file:led.lus::21)
+make s1 : simu avec luciole
+make t1 : test aleatoire avec lurette
+make p1 : model-checking avec lesar
 
 nb a propos de la preuve : parité versus exploration exhaustive
 
-
+file
 
 * Idées en vrac
 ** Compter en binaire
diff --git a/lv6-ref-man/lv6-ref-man.pdf b/lv6-ref-man/lv6-ref-man.pdf
index 0f18d36a246905c5607f856b0212ab09d0994152..4bf16d6a640b69331d7b5d529ad231a12f132394 100644
Binary files a/lv6-ref-man/lv6-ref-man.pdf and b/lv6-ref-man/lv6-ref-man.pdf differ
diff --git a/test/lus2lic.sum b/test/lus2lic.sum
index b2970f55824dd6aabf31933e0c68eabe6eab8440..71a68188f8aec663f234f6eb1cd219cd88d421c6 100644
--- a/test/lus2lic.sum
+++ b/test/lus2lic.sum
@@ -1,5 +1,5 @@
 ==> lus2lic0.sum <==
-Test run by jahier on Wed Sep 18 11:21:58 
+Test run by jahier on Wed Oct  9 15:40:39 
 Native configuration is x86_64-pc-linux-gnu
 
 		=== lus2lic0 tests ===
@@ -66,7 +66,7 @@ XFAIL: Test bad programs (assert): test_lus2lic_no_node should_fail/assert/lecte
 XFAIL: Test bad programs (assert): test_lus2lic_no_node should_fail/assert/s.lus
 
 ==> lus2lic1.sum <==
-Test run by jahier on Wed Sep 18 11:21:59 
+Test run by jahier on Wed Oct  9 15:40:40 
 Native configuration is x86_64-pc-linux-gnu
 
 		=== lus2lic1 tests ===
@@ -409,7 +409,7 @@ PASS: sh multipar.sh
 PASS: /home/jahier/lus2lic/test/../utils/compare_exec_and_2c multipar.lus  {}
 
 ==> lus2lic2.sum <==
-Test run by jahier on Wed Sep 18 11:22:23 
+Test run by jahier on Wed Oct  9 15:41:09 
 Native configuration is x86_64-pc-linux-gnu
 
 		=== lus2lic2 tests ===
@@ -749,7 +749,7 @@ PASS: sh zzz2.sh
 PASS: /home/jahier/lus2lic/test/../utils/compare_exec_and_2c zzz2.lus  {}
 
 ==> lus2lic3.sum <==
-Test run by jahier on Wed Sep 18 11:22:50 
+Test run by jahier on Wed Oct  9 15:41:40 
 Native configuration is x86_64-pc-linux-gnu
 
 		=== lus2lic3 tests ===
@@ -1259,7 +1259,7 @@ PASS: /home/jahier/lus2lic/test/../utils/test_lus2lic_no_node multipar.lus {}
 
 
 ==> lus2lic4.sum <==
-Test run by jahier on Wed Sep 18 11:23:32 
+Test run by jahier on Wed Oct  9 15:42:19 
 Native configuration is x86_64-pc-linux-gnu
 
 		=== lus2lic4 tests ===
@@ -1777,13 +1777,13 @@ PASS: /home/jahier/lus2lic/test/../utils/test_lus2lic_no_node zzz2.lus {}
 ===============================
 # Total number of failures: 15
 lus2lic0.log:testcase ./lus2lic.tests/test0.exp completed in 1 seconds
-lus2lic1.log:testcase ./lus2lic.tests/test1.exp completed in 24 seconds
-lus2lic2.log:testcase ./lus2lic.tests/test2.exp completed in 27 seconds
-lus2lic3.log:testcase ./lus2lic.tests/test3.exp completed in 42 seconds
-lus2lic4.log:testcase ./lus2lic.tests/test4.exp completed in 17 seconds
+lus2lic1.log:testcase ./lus2lic.tests/test1.exp completed in 29 seconds
+lus2lic2.log:testcase ./lus2lic.tests/test2.exp completed in 31 seconds
+lus2lic3.log:testcase ./lus2lic.tests/test3.exp completed in 39 seconds
+lus2lic4.log:testcase ./lus2lic.tests/test4.exp completed in 15 seconds
 * Ref time: 
-60.08user 21.96system 1:51.64elapsed 73%CPU (0avgtext+0avgdata 285104maxresident)k
-0inputs+141480outputs (0major+15471916minor)pagefaults 0swaps
+60.67user 20.82system 1:54.22elapsed 71%CPU (0avgtext+0avgdata 283180maxresident)k
+0inputs+141488outputs (0major+11037451minor)pagefaults 0swaps
 * Quick time (-j 4):
-68.59user 23.86system 1:08.69elapsed 134%CPU (0avgtext+0avgdata 285060maxresident)k
-0inputs+140072outputs (0major+15364481minor)pagefaults 0swaps
+76.76user 24.63system 1:12.82elapsed 139%CPU (0avgtext+0avgdata 283284maxresident)k
+2040inputs+138392outputs (0major+10828391minor)pagefaults 0swaps