This should help getting accurate statistics (on both the

formula automaton and the synchronized product) from LBTT.
Idea from Jean-Michel Couvreur.

* src/tgbaalgos/lbtt.cc (nonacceptant_lbtt_bfs): New class.
(nonacceptant_lbtt_reachable): New function.
* src/tgbaalgos/lbtt.hh (nonacceptant_lbtt_reachable): New
function.
* src/tgbatest/ltl2tgba.cc (main): Call nonacceptant_lbtt_reachable
if the -T option is used.
* src/tgbatest/spotlbtt.test: Setup the -T variants, disabled by
default.

src/tgbatest/spotlbtt.test

@@ -42,6 +42,13 @@ Algorithm
    Enabled = yes
 }
 
+Algorithm
+{
+   Name = "Spot (Couvreur -- LaCIM), fake"
+   Path = "${LBTT_TRANSLATE} --spot './ltl2tgba -F -T'"
+   Enabled = no
+}
+
 Algorithm
 {
    Name = "Spot (Couvreur -- FM)"
@@ -56,11 +63,21 @@ Algorithm
    Enabled = yes
 }
 
+Algorithm
+{
+   Name = "Spot (Couvreur -- FM), fake"
+   Path = "${LBTT_TRANSLATE} --spot './ltl2tgba -F -f -T'"
+   Enabled = no
+}
+
 GlobalOptions
 {
    Rounds = 100
    Interactive = Never
 #   Verbosity = 5
+#   ComparisonCheck = no
+#   ConsistencyCheck = no
+#   IntersectionCheck = no
 }
 
 FormulaOptions