Correct some bugs on clocks.

1 files changed, 28 insertions, 0 deletions

diff --git a/tests/source/two_counters.scade b/tests/source/two_counters.scade
new file mode 100644
index 0000000..7970aab
--- /dev/null
+++ b/tests/source/two_counters.scade
@@ -0,0 +1,28 @@
+const n1: int = 10;
+const n2: int = 6;
+
+
+node top(a,b,c : bool) returns (ok, r1, r2 : bool)
+var
+  x, y, pre_x, pre_y: int;
+  o1, o2: bool;
+
+  m: bool;
+let
+  x = if (b or c) then 0 else (if (a and pre_x < n1) then pre_x + 1 else pre_x);
+  y = if (c) then 0 else (if (a and pre_y < n2) then pre_y + 1 else pre_y);
+  o1= x = n1;
+  o2= y = n2;
+  ok= if o1 then o2 else true;
+  r1 = 0<=x and x<=n1;
+  r2 = 0<=y and y<=n2;
+  pre_x = 0 -> pre(x);
+  pre_y = 0 -> pre(y);
+
+  m = true -> pre o2;
+
+  guarantee g1: ok;
+  guarantee g2: r1;
+  guarantee g3: r2;
+tel
+