Index: lib/Exchange/JSONExporter.cpp
===================================================================
--- lib/Exchange/JSONExporter.cpp
+++ lib/Exchange/JSONExporter.cpp
@@ -274,10 +274,45 @@
 
 bool JSONImporter::importContext(Scop &S, Json::Value &JScop) {
   isl_set *OldContext = S.getContext();
+  // Check if key 'context' is present.
+  if (!JScop.isMember("context")) {
+    errs() << "JScop file has no key named 'context'.\n";
+    isl_set_free(OldContext);
+    return false;
+  }
+
   isl_set *NewContext =
       isl_set_read_from_str(S.getIslCtx(), JScop["context"].asCString());
 
-  for (unsigned i = 0; i < isl_set_dim(OldContext, isl_dim_param); i++) {
+  // Check whether the context was parsed successfully.
+  if (!NewContext) {
+    errs() << "The context was not parsed successfully by ISL.\n";
+    isl_set_free(NewContext);
+    isl_set_free(OldContext);
+    return false;
+  }
+
+  // Check if the isl_set is a parameter set.
+  if (!isl_set_is_params(NewContext)) {
+    errs() << "The isl_set is not a parameter set.\n";
+    isl_set_free(NewContext);
+    isl_set_free(OldContext);
+    return false;
+  }
+
+  unsigned OldContextDim = isl_set_dim(OldContext, isl_dim_param);
+  unsigned NewContextDim = isl_set_dim(NewContext, isl_dim_param);
+  // Check if the imported context has the right number of parameters.
+  if (OldContextDim != NewContextDim) {
+    errs() << "Imported context has the wrong number of parameters : "
+           << "Found " << NewContextDim << " Expected " << OldContextDim
+           << "\n";
+    isl_set_free(NewContext);
+    isl_set_free(OldContext);
+    return false;
+  }
+
+  for (unsigned i = 0; i < OldContextDim; i++) {
     isl_id *Id = isl_set_get_dim_id(OldContext, isl_dim_param, i);
     NewContext = isl_set_set_dim_id(NewContext, isl_dim_param, i, Id);
   }
@@ -290,13 +325,44 @@
 bool JSONImporter::importSchedule(Scop &S, Json::Value &JScop,
                                   const Dependences &D) {
   StatementToIslMapTy NewSchedule;
+  // Check if key 'statements' is present.
+  if (!JScop.isMember("statements")) {
+    errs() << "JScop file has no key name 'statements'.\n";
+    return false;
+  }
+
+  Json::Value statements = JScop["statements"];
+  // Check whether the number of indices equals the number of statements
+  if (statements.size() != S.getSize()) {
+    errs() << "The number of indices and the number of statements differ.\n";
+    return false;
+  }
 
   int Index = 0;
   for (ScopStmt &Stmt : S) {
-    Json::Value Schedule = JScop["statements"][Index]["schedule"];
+    // Check if key 'schedule' is present.
+    if (!statements[Index].isMember("schedule")) {
+      errs() << "Statement " << Index << " has no 'schedule' key.\n";
+      for (auto Element : NewSchedule) {
+        isl_map_free(Element.second);
+      }
+      return false;
+    }
+    Json::Value Schedule = statements[Index]["schedule"];
     assert(!Schedule.asString().empty() &&
            "Schedules that contain extension nodes require special handling.");
+
     isl_map *Map = isl_map_read_from_str(S.getIslCtx(), Schedule.asCString());
+    // Check whether the schedule was parsed successfully
+    if (!Map) {
+      errs() << "The schedule was not parsed successfully (index = " << Index
+             << ").\n";
+      for (auto Element : NewSchedule) {
+        isl_map_free(Element.second);
+      }
+      return false;
+    }
+
     isl_space *Space = Stmt.getDomainSpace();
 
     // Copy the old tuple id. This is necessary to retain the user pointer,
@@ -312,6 +378,7 @@
     Index++;
   }
 
+  // Check whether the new schedule is valid or not.
   if (!D.isValidSchedule(S, &NewSchedule)) {
     errs() << "JScop file contains a schedule that changes the "
            << "dependences. Use -disable-polly-legality to continue anyways\n";
@@ -534,10 +601,12 @@
 }
 
 bool JSONImporter::importArrays(Scop &S, Json::Value &JScop) {
+  // Check if key 'arrays' is present.
   Json::Value Arrays = JScop["arrays"];
-
-  if (Arrays.size() == 0)
+  if (Arrays.size() == 0) {
+    errs() << "JScop file has no key named 'arrays'.\n";
     return true;
+  }
 
   unsigned ArrayIdx = 0;
   for (auto &SAI : S.arrays()) {
@@ -551,13 +620,35 @@
   }
 
   for (; ArrayIdx < Arrays.size(); ArrayIdx++) {
+    // Check if key 'type' is present.
+    if (!Arrays[ArrayIdx].isMember("type")) {
+      errs() << "Array at index " << ArrayIdx << " has no key 'type'.\n";
+      return false;
+    }
     auto *ElementType = parseTextType(Arrays[ArrayIdx]["type"].asCString(),
                                       S.getSE()->getContext());
-    if (!ElementType)
+    // Check whether the array was parsed successfully
+    if (!ElementType) {
+      errs() << "Array was not parsed successfully for index " << ArrayIdx
+             << ".\n";
       return false;
+    }
+
     std::vector<unsigned> DimSizes;
-    for (unsigned i = 0; i < Arrays[ArrayIdx]["sizes"].size(); i++)
+    // Check if key 'sizes' is present.
+    if (!Arrays[ArrayIdx].isMember("sizes")) {
+      errs() << "Array at index " << ArrayIdx << " has no key 'sizes'.\n";
+      return false;
+    }
+    for (unsigned i = 0; i < Arrays[ArrayIdx]["sizes"].size(); i++) {
       DimSizes.push_back(std::stoi(Arrays[ArrayIdx]["sizes"][i].asCString()));
+    }
+
+    // Check if key 'name' is present.
+    if (!Arrays[ArrayIdx].isMember("name")) {
+      errs() << "Array at index " << ArrayIdx << " has no key 'name'.\n";
+      return false;
+    }
     S.createScopArrayInfo(ElementType, Arrays[ArrayIdx]["name"].asCString(),
                           DimSizes);
   }
Index: test/CMakeLists.txt
===================================================================
--- test/CMakeLists.txt
+++ test/CMakeLists.txt
@@ -5,7 +5,8 @@
   "CodeGen"
   "OpenMP"
   "polybench"
-  "vect")
+  "vect"
+  "JSONExporter")
 
 
 set(POLLY_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/..")
Index: test/JSONExporter/rlr.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: JScop file has no key named 'arrays'.
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr2.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr2.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel  < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: JScop file has no key named 'context'.
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr2(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr2(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr2___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr2___%for.cond---%for.end10.jscop
@@ -0,0 +1,32 @@
+{
+   "cntext" : "[n] -> {  : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[n] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr3.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr3.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: The context was not parsed successfully by ISL.
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr3(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr3(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr3___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr3___%for.cond---%for.end10.jscop
@@ -0,0 +1,32 @@
+{
+   "context" : "[n] -> {  :  >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[n] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr4.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr4.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel -analyze < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: The isl_set is not a parameter set.
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr4(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr4(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr4___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr4___%for.cond---%for.end10.jscop
@@ -0,0 +1,32 @@
+{
+   "context" : "{ S[n] : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[n] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr5.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr5.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: Imported context has the wrong number of parameters : Found 2 Expected 1
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr5(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr5(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr5___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr5___%for.cond---%for.end10.jscop
@@ -0,0 +1,32 @@
+{
+   "context" : "[n, m] -> {  : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[n] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr6.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr6.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: JScop file has no key name 'statements'.
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr6(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr6(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr6___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr6___%for.cond---%for.end10.jscop
@@ -0,0 +1,32 @@
+{
+   "context" : "[n] -> {  : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "staements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[n] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr7.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr7.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: The number of indices and the number of statements differ.
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr7(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr7(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr7___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr7___%for.cond---%for.end10.jscop
@@ -0,0 +1,21 @@
+{
+   "context" : "[n] -> {  : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr8.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr8.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: Statement 0 has no 'schedule' key.
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr8(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr8(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr8___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr8___%for.cond---%for.end10.jscop
@@ -0,0 +1,31 @@
+{
+   "context" : "[n] -> {  : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[n] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr9.ll
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr9.ll
@@ -0,0 +1,65 @@
+; RUN: opt %loadPolly -polly-import-jscop-dir=%S -polly-import-jscop -polly-ast -polly-ast-detect-parallel < %s 2>&1 >/dev/null | FileCheck %s 
+;
+; CHECK: The schedule was not parsed successfully (index = 1).
+;
+; PINFO:       for.cond2: Loop is parallel.
+; PINFO-NEXT:  for.cond: Loop is not parallel.
+;
+;    void rlr9(int *A, long n) {
+;      for (long i = 0; i < 2 * n; i++)
+; S0:    A[0] += i;
+;      for (long i = 0; i < 2 * n; i++)
+; S1:    A[i + 1] = 1;
+;    }
+;
+target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
+
+define void @rlr9(i32* %A, i32 %n) {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %mul = shl nsw i32 %n, 1
+  %cmp = icmp slt i32 %i.0, %mul
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  br label %S0
+
+S0:                                               ; preds = %for.body
+  %tmp = load i32, i32* %A, align 4
+  %add = add nsw i32 %tmp, %i.0
+  store i32 %add, i32* %A, align 4
+  br label %for.inc
+
+for.inc:                                          ; preds = %S0
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond2
+
+for.cond2:                                        ; preds = %for.inc8, %for.end
+  %i1.0 = phi i32 [ 0, %for.end ], [ %inc9, %for.inc8 ]
+  %mul3 = shl nsw i32 %n, 1
+  %cmp4 = icmp slt i32 %i1.0, %mul3
+  br i1 %cmp4, label %for.body5, label %for.end10
+
+for.body5:                                        ; preds = %for.cond2
+  br label %S1
+
+S1:                                               ; preds = %for.body5
+  %add6 = add nsw i32 %i1.0, 1
+  %arrayidx7 = getelementptr inbounds i32, i32* %A, i32 %add6
+  store i32 1, i32* %arrayidx7, align 4
+  br label %for.inc8
+
+for.inc8:                                         ; preds = %S1
+  %inc9 = add nsw i32 %i1.0, 1
+  br label %for.cond2
+
+for.end10:                                        ; preds = %for.cond2
+  ret void
+}
+
Index: test/JSONExporter/rlr9___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr9___%for.cond---%for.end10.jscop
@@ -0,0 +1,32 @@
+{
+   "context" : "[n] -> {  : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}
Index: test/JSONExporter/rlr___%for.cond---%for.end10.jscop
===================================================================
--- /dev/null
+++ test/JSONExporter/rlr___%for.cond---%for.end10.jscop
@@ -0,0 +1,32 @@
+{
+   "context" : "[n] -> {  : n >= -2147483648 and n <= 2147483647 }",
+   "name" : "for.cond => for.end10",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "read",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            },
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S0[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S0[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S0",
+         "schedule" : "[n] -> { Stmt_S0[i0] -> [0, n - i0, 0] }"
+      },
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "[n] -> { Stmt_S1[i0] -> MemRef_A[1 + i0] }"
+            }
+         ],
+         "domain" : "[n] -> { Stmt_S1[i0] : i0 >= 0 and i0 <= -1 + 2n and n >= 1 }",
+         "name" : "Stmt_S1",
+         "schedule" : "[n] -> { Stmt_S1[i0] -> [1, n - i0, 0] }"
+      }
+   ]
+}