1 files changed, 59 insertions, 0 deletions
diff --git a/Test/civl/parallel5.bpl b/Test/civl/parallel5.bpl
new file mode 100644
index 00000000..6d3deb8e
--- /dev/null
+++ b/Test/civl/parallel5.bpl
@@ -0,0 +1,59 @@
+// RUN: %boogie -noinfer -typeEncoding:m -useArrayTheory "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+var {:layer 0,1} a:[int]int;
+
+procedure {:yields} {:layer 1} Allocate() returns ({:linear "tid"} tid: int)
+{
+    yield;
+    call tid := AllocateLow();
+    yield;
+}
+
+function {:builtin "MapConst"} MapConstBool(bool) : [int]bool;
+function {:inline} {:linear "tid"} TidCollector(x: int) : [int]bool
+{
+  MapConstBool(false)[x := true]
+}
+
+procedure {:yields} {:layer 0,1} Write(idx: int, val: int);
+ensures {:atomic} |{A: a[idx] := val; return true; }|;
+
+procedure {:yields} {:layer 1} main() 
+{
+    var {:linear "tid"} i: int;
+    var {:linear "tid"} j: int;
+    call i := Allocate();
+    call j := Allocate();
+    par i := t(i) | Yield(j);
+    par i := u(i) | j := u(j);
+}
+
+procedure {:yields} {:layer 1} t({:linear_in "tid"} i': int) returns ({:linear "tid"} i: int)
+{
+    i := i';
+
+    yield;
+    call Write(i, 42);
+    call Yield(i);
+    assert {:layer 1} a[i] == 42;
+}
+
+procedure {:yields} {:layer 1} u({:linear_in "tid"} i': int) returns ({:linear "tid"} i: int) 
+{
+    i := i';
+
+    yield;
+    call Write(i, 42);
+    yield;
+    assert {:layer 1} a[i] == 42;
+}
+
+procedure {:yields} {:layer 1} Yield({:linear "tid"} i: int)
+ensures {:layer 1} old(a)[i] == a[i];
+{
+    yield;
+    assert {:layer 1} old(a)[i] == a[i];
+}
+
+procedure {:yields} {:layer 0,1} AllocateLow() returns ({:linear "tid"} tid: int);
+ensures {:atomic} |{ A: return true; }|;