diff --git a/test_conformance/math_brute_force/binary_double.cpp b/test_conformance/math_brute_force/binary_double.cpp
index 315c6c33..15a48a66 100644
--- a/test_conformance/math_brute_force/binary_double.cpp
+++ b/test_conformance/math_brute_force/binary_double.cpp
@@ -385,9 +385,9 @@ int TestFunc_Double_Double_Double(const Func *f, MTdata d, bool relaxedMode)
                 &region, &error);
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
-                vlog_error("Error: Unable to create sub-buffer of gInBuffer "
-                           "for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                vlog_error("Error: Unable to create sub-buffer of "
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/binary_i_double.cpp b/test_conformance/math_brute_force/binary_i_double.cpp
index 229c8f95..686e32b4 100644
--- a/test_conformance/math_brute_force/binary_i_double.cpp
+++ b/test_conformance/math_brute_force/binary_i_double.cpp
@@ -386,9 +386,9 @@ int TestFunc_Double_Double_Int(const Func *f, MTdata d, bool relaxedMode)
                 &region, &error);
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
-                vlog_error("Error: Unable to create sub-buffer of gInBuffer "
-                           "for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                vlog_error("Error: Unable to create sub-buffer of "
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/binary_i_float.cpp b/test_conformance/math_brute_force/binary_i_float.cpp
index 6b128937..d99382f1 100644
--- a/test_conformance/math_brute_force/binary_i_float.cpp
+++ b/test_conformance/math_brute_force/binary_i_float.cpp
@@ -380,8 +380,8 @@ int TestFunc_Float_Float_Int(const Func *f, MTdata d, bool relaxedMode)
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
                 vlog_error("Error: Unable to create sub-buffer of "
-                           "gInBuffer for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/binary_operator_double.cpp b/test_conformance/math_brute_force/binary_operator_double.cpp
index 046f1e78..cdb46636 100644
--- a/test_conformance/math_brute_force/binary_operator_double.cpp
+++ b/test_conformance/math_brute_force/binary_operator_double.cpp
@@ -384,9 +384,9 @@ int TestFunc_Double_Double_Double_Operator(const Func *f, MTdata d,
                 &region, &error);
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
-                vlog_error("Error: Unable to create sub-buffer of gInBuffer "
-                           "for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                vlog_error("Error: Unable to create sub-buffer of "
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/binary_operator_float.cpp b/test_conformance/math_brute_force/binary_operator_float.cpp
index 5ec6b5d3..eba3ee66 100644
--- a/test_conformance/math_brute_force/binary_operator_float.cpp
+++ b/test_conformance/math_brute_force/binary_operator_float.cpp
@@ -377,8 +377,8 @@ int TestFunc_Float_Float_Float_Operator(const Func *f, MTdata d,
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
                 vlog_error("Error: Unable to create sub-buffer of "
-                           "gInBuffer for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/macro_binary_double.cpp b/test_conformance/math_brute_force/macro_binary_double.cpp
index 589dc9bb..cbcecb33 100644
--- a/test_conformance/math_brute_force/macro_binary_double.cpp
+++ b/test_conformance/math_brute_force/macro_binary_double.cpp
@@ -364,9 +364,9 @@ int TestMacro_Int_Double_Double(const Func *f, MTdata d, bool relaxedMode)
                 &region, &error);
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
-                vlog_error("Error: Unable to create sub-buffer of gInBuffer "
-                           "for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                vlog_error("Error: Unable to create sub-buffer of "
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/macro_binary_float.cpp b/test_conformance/math_brute_force/macro_binary_float.cpp
index 8f2e41fc..bbccbbe9 100644
--- a/test_conformance/math_brute_force/macro_binary_float.cpp
+++ b/test_conformance/math_brute_force/macro_binary_float.cpp
@@ -356,8 +356,8 @@ int TestMacro_Int_Float_Float(const Func *f, MTdata d, bool relaxedMode)
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
                 vlog_error("Error: Unable to create sub-buffer of "
-                           "gInBuffer for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/macro_unary_double.cpp b/test_conformance/math_brute_force/macro_unary_double.cpp
index 06cae25b..154d8ecb 100644
--- a/test_conformance/math_brute_force/macro_unary_double.cpp
+++ b/test_conformance/math_brute_force/macro_unary_double.cpp
@@ -232,9 +232,9 @@ int TestMacro_Int_Double(const Func *f, MTdata d, bool relaxedMode)
                 &region, &error);
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
-                vlog_error("Error: Unable to create sub-buffer of gInBuffer "
-                           "for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                vlog_error("Error: Unable to create sub-buffer of "
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/macro_unary_float.cpp b/test_conformance/math_brute_force/macro_unary_float.cpp
index c44c1775..725a8316 100644
--- a/test_conformance/math_brute_force/macro_unary_float.cpp
+++ b/test_conformance/math_brute_force/macro_unary_float.cpp
@@ -233,8 +233,8 @@ int TestMacro_Int_Float(const Func *f, MTdata d, bool relaxedMode)
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
                 vlog_error("Error: Unable to create sub-buffer of "
-                           "gOutBuffer for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/unary_double.cpp b/test_conformance/math_brute_force/unary_double.cpp
index b8f85fb8..1074e9ca 100644
--- a/test_conformance/math_brute_force/unary_double.cpp
+++ b/test_conformance/math_brute_force/unary_double.cpp
@@ -252,9 +252,9 @@ int TestFunc_Double_Double(const Func *f, MTdata d, bool relaxedMode)
                 &region, &error);
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
-                vlog_error("Error: Unable to create sub-buffer of gInBuffer "
-                           "for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                vlog_error("Error: Unable to create sub-buffer of "
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }
diff --git a/test_conformance/math_brute_force/unary_float.cpp b/test_conformance/math_brute_force/unary_float.cpp
index ee250f34..126db73e 100644
--- a/test_conformance/math_brute_force/unary_float.cpp
+++ b/test_conformance/math_brute_force/unary_float.cpp
@@ -248,8 +248,8 @@ int TestFunc_Float_Float(const Func *f, MTdata d, bool relaxedMode)
             if (error || NULL == test_info.tinfo[i].outBuf[j])
             {
                 vlog_error("Error: Unable to create sub-buffer of "
-                           "gInBuffer for region {%zd, %zd}\n",
-                           region.origin, region.size);
+                           "gOutBuffer[%d] for region {%zd, %zd}\n",
+                           (int)j, region.origin, region.size);
                 goto exit;
             }
         }