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-rw-r--r--Test/civl/Program5.bpl167
1 files changed, 84 insertions, 83 deletions
diff --git a/Test/civl/Program5.bpl b/Test/civl/Program5.bpl
index d728b845..362a6d9d 100644
--- a/Test/civl/Program5.bpl
+++ b/Test/civl/Program5.bpl
@@ -1,83 +1,84 @@
-// RUN: %boogie -noinfer -typeEncoding:m -useArrayTheory "%s" > "%t"
-// RUN: %diff "%s.expect" "%t"
-type Tid;
-const unique nil: Tid;
-
-function {:inline} UNALLOC():int { 0 }
-function {:inline} WHITE():int { 1 }
-function {:inline} GRAY():int { 2 }
-function {:inline} BLACK():int { 3 }
-function {:inline} Unalloc(i:int) returns(bool) { i <= 0 }
-function {:inline} White(i:int) returns(bool) { i == 1 }
-function {:inline} Gray(i:int) returns(bool) { i == 2 }
-function {:inline} Black(i:int) returns(bool) { i >= 3 }
-
-procedure {:yields} {:layer 2} YieldColorOnlyGetsDarker()
-ensures {:layer 2} Color >= old(Color);
-{
- yield;
- assert {:layer 2} Color >= old(Color);
-}
-
-procedure {:yields} {:layer 2,3} WriteBarrier({:linear "tid"} tid:Tid)
-ensures {:atomic} |{ A: assert tid != nil; goto B, C;
- B: assume White(Color); Color := GRAY(); return true;
- C: assume !White(Color); return true;}|;
-requires {:layer 2} Color >= WHITE();
-ensures {:layer 2} Color >= GRAY();
-{
- var colorLocal:int;
- yield;
- assert {:layer 2} Color >= WHITE();
- call colorLocal := GetColorNoLock();
- call YieldColorOnlyGetsDarker();
- if (White(colorLocal)) { call WriteBarrierSlow(tid); }
- yield;
- assert {:layer 2} Color >= GRAY();
-}
-
-procedure {:yields} {:layer 1,2} WriteBarrierSlow({:linear "tid"} tid:Tid)
-ensures {:atomic} |{ A: assert tid != nil; goto B, C;
- B: assume White(Color); Color := GRAY(); return true;
- C: assume !White(Color); return true; }|;
-{
- var colorLocal:int;
- yield;
- call AcquireLock(tid);
- call colorLocal := GetColorLocked(tid);
- if (White(colorLocal)) { call SetColorLocked(tid, GRAY()); }
- call ReleaseLock(tid);
- yield;
-}
-
-procedure {:yields} {:layer 0,1} AcquireLock({:linear "tid"} tid: Tid);
- ensures {:right} |{ A: assert tid != nil; assume lock == nil; lock := tid; return true; }|;
-
-procedure {:yields} {:layer 0,1} ReleaseLock({:linear "tid"} tid: Tid);
- ensures {:left} |{ A: assert tid != nil; assert lock == tid; lock := nil; return true; }|;
-
-procedure {:yields} {:layer 0,1} SetColorLocked({:linear "tid"} tid:Tid, newCol:int);
- ensures {:atomic} |{A: assert tid != nil; assert lock == tid; Color := newCol; return true;}|;
-
-procedure {:yields} {:layer 0,1} GetColorLocked({:linear "tid"} tid:Tid) returns (col:int);
- ensures {:both} |{A: assert tid != nil; assert lock == tid; col := Color; return true;}|;
-
-procedure {:yields} {:layer 0,2} GetColorNoLock() returns (col:int);
- ensures {:atomic} |{A: col := Color; return true;}|;
-
-
-
-function {:builtin "MapConst"} MapConstBool(bool): [Tid]bool;
-function {:builtin "MapOr"} MapOr([Tid]bool, [Tid]bool) : [Tid]bool;
-
-var {:layer 0} Color:int;
-var {:layer 0} lock:Tid;
-
-function {:inline} {:linear "tid"} TidCollector(x: Tid) : [Tid]bool
-{
- MapConstBool(false)[x := true]
-}
-function {:inline} {:linear "tid"} TidSetCollector(x: [Tid]bool) : [Tid]bool
-{
- x
-}
+// RUN: %boogie -noinfer -typeEncoding:m -useArrayTheory "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+type Tid;
+const unique nil: Tid;
+
+function {:inline} UNALLOC():int { 0 }
+function {:inline} WHITE():int { 1 }
+function {:inline} GRAY():int { 2 }
+function {:inline} BLACK():int { 3 }
+function {:inline} Unalloc(i:int) returns(bool) { i <= 0 }
+function {:inline} White(i:int) returns(bool) { i == 1 }
+function {:inline} WhiteOrLighter(i:int) returns(bool) { i <= 1 }
+function {:inline} Gray(i:int) returns(bool) { i == 2 }
+function {:inline} Black(i:int) returns(bool) { i >= 3 }
+
+procedure {:yields} {:layer 2} YieldColorOnlyGetsDarker()
+ensures {:layer 2} Color >= old(Color);
+{
+ yield;
+ assert {:layer 2} Color >= old(Color);
+}
+
+procedure {:yields} {:layer 2,3} WriteBarrier({:linear "tid"} tid:Tid)
+ensures {:atomic} |{ A: assert tid != nil; goto B, C;
+ B: assume White(Color); Color := GRAY(); return true;
+ C: assume !White(Color); return true;}|;
+requires {:layer 2} Color >= WHITE();
+ensures {:layer 2} Color >= GRAY();
+{
+ var colorLocal:int;
+ yield;
+ assert {:layer 2} Color >= WHITE();
+ call colorLocal := GetColorNoLock();
+ call YieldColorOnlyGetsDarker();
+ if (WhiteOrLighter(colorLocal)) { call WriteBarrierSlow(tid); }
+ yield;
+ assert {:layer 2} Color >= GRAY();
+}
+
+procedure {:yields} {:layer 1,2} WriteBarrierSlow({:linear "tid"} tid:Tid)
+ensures {:atomic} |{ A: assert tid != nil; goto B, C;
+ B: assume WhiteOrLighter(Color); Color := GRAY(); return true;
+ C: assume !WhiteOrLighter(Color); return true; }|;
+{
+ var colorLocal:int;
+ yield;
+ call AcquireLock(tid);
+ call colorLocal := GetColorLocked(tid);
+ if (WhiteOrLighter(colorLocal)) { call SetColorLocked(tid, GRAY()); }
+ call ReleaseLock(tid);
+ yield;
+}
+
+procedure {:yields} {:layer 0,1} AcquireLock({:linear "tid"} tid: Tid);
+ ensures {:right} |{ A: assert tid != nil; assume lock == nil; lock := tid; return true; }|;
+
+procedure {:yields} {:layer 0,1} ReleaseLock({:linear "tid"} tid: Tid);
+ ensures {:left} |{ A: assert tid != nil; assert lock == tid; lock := nil; return true; }|;
+
+procedure {:yields} {:layer 0,1} SetColorLocked({:linear "tid"} tid:Tid, newCol:int);
+ ensures {:atomic} |{A: assert tid != nil; assert lock == tid; Color := newCol; return true;}|;
+
+procedure {:yields} {:layer 0,1} GetColorLocked({:linear "tid"} tid:Tid) returns (col:int);
+ ensures {:both} |{A: assert tid != nil; assert lock == tid; col := Color; return true;}|;
+
+procedure {:yields} {:layer 0,2} GetColorNoLock() returns (col:int);
+ ensures {:atomic} |{A: col := Color; return true;}|;
+
+
+
+function {:builtin "MapConst"} MapConstBool(bool): [Tid]bool;
+function {:builtin "MapOr"} MapOr([Tid]bool, [Tid]bool) : [Tid]bool;
+
+var {:layer 0} Color:int;
+var {:layer 0} lock:Tid;
+
+function {:inline} {:linear "tid"} TidCollector(x: Tid) : [Tid]bool
+{
+ MapConstBool(false)[x := true]
+}
+function {:inline} {:linear "tid"} TidSetCollector(x: [Tid]bool) : [Tid]bool
+{
+ x
+}