diff --git a/ConflictSet.cpp b/ConflictSet.cpp
index b626797..3fab679 100644
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -820,7 +820,7 @@ void ConflictSet::setOldestVersion(int64_t oldestVersion) {
   return impl->setOldestVersion(oldestVersion);
 }
 
-ConflictSet::ConflictSet(int64_t oldestVersion, [[maybe_unused]] uint64_t seed)
+ConflictSet::ConflictSet(int64_t oldestVersion)
     : impl(new (safe_malloc(sizeof(Impl))) Impl{oldestVersion}) {}
 
 ConflictSet::~ConflictSet() {
@@ -859,7 +859,7 @@ ConflictSet_setOldestVersion(void *cs, int64_t oldestVersion) {
   ((ConflictSet::Impl *)cs)->setOldestVersion(oldestVersion);
 }
 __attribute__((__visibility__("default"))) void *
-ConflictSet_create(int64_t oldestVersion, uint64_t) {
+ConflictSet_create(int64_t oldestVersion) {
   return new (safe_malloc(sizeof(ConflictSet::Impl)))
       ConflictSet::Impl{oldestVersion};
 }
@@ -870,6 +870,8 @@ __attribute__((__visibility__("default"))) void ConflictSet_destroy(void *cs) {
 }
 }
 
+namespace {
+
 void printLogical(std::string &result, Node *node) {
   Arena arena;
   for (Node *iter = node; iter != nullptr;) {
@@ -982,6 +984,8 @@ bool checkCorrectness(Node *node, ReferenceImpl &refImpl) {
   return success;
 }
 
+} // namespace
+
 namespace std {
 void __throw_length_error(const char *) { __builtin_unreachable(); }
 } // namespace std
diff --git a/Internal.h b/Internal.h
index 2a5c0a9..48ba17d 100644
--- a/Internal.h
+++ b/Internal.h
@@ -448,6 +448,8 @@ inline std::string printable(const Key &key) {
   return printable(std::string_view((const char *)key.p, key.len));
 }
 
+namespace {
+
 template <class ConflictSetImpl> struct TestDriver {
   // TODO call setOldestVersion, and check range writes/reads
   Arbitrary arbitrary;
@@ -538,5 +540,6 @@ template <class ConflictSetImpl> struct TestDriver {
     return false;
   }
 };
+} // namespace
 
 // GCOVR_EXCL_STOP
\ No newline at end of file
diff --git a/conflict_set_c_api_test.c b/conflict_set_c_api_test.c
index d38122a..d593b59 100644
--- a/conflict_set_c_api_test.c
+++ b/conflict_set_c_api_test.c
@@ -3,7 +3,7 @@
 #include <assert.h>
 
 int main(void) {
-  ConflictSet *cs = ConflictSet_create(0, 0);
+  ConflictSet *cs = ConflictSet_create(0);
   ConflictSet_WriteRange w;
   ConflictSet_Result result;
   ConflictSet_ReadRange r;
diff --git a/conflict_set_cxx_api_test.cpp b/conflict_set_cxx_api_test.cpp
index 6ad314b..b057dbf 100644
--- a/conflict_set_cxx_api_test.cpp
+++ b/conflict_set_cxx_api_test.cpp
@@ -3,7 +3,7 @@
 #include <cassert>
 
 int main(void) {
-  ConflictSet cs(0, 0);
+  ConflictSet cs(0);
   ConflictSet::WriteRange w;
   w.begin.p = (const uint8_t *)"0000";
   w.begin.len = 4;
diff --git a/include/ConflictSet.h b/include/ConflictSet.h
index 990155c..d38fda0 100644
--- a/include/ConflictSet.h
+++ b/include/ConflictSet.h
@@ -52,7 +52,7 @@ struct __attribute__((__visibility__("default"))) ConflictSet {
 
   /** Reads where readVersion < oldestVersion will result in `TooOld`. There are
    * no writes initially. */
-  explicit ConflictSet(int64_t oldestVersion, uint64_t seed);
+  explicit ConflictSet(int64_t oldestVersion);
   ~ConflictSet();
 
 #if __cplusplus > 199711L
@@ -121,7 +121,7 @@ void ConflictSet_addWrites(ConflictSet *cs,
 void ConflictSet_setOldestVersion(ConflictSet *cs, int64_t oldestVersion);
 /** Reads where readVersion < oldestVersion will result in `TooOld`. There are
  * no writes initially. */
-ConflictSet *ConflictSet_create(int64_t oldestVersion, uint64_t seed);
+ConflictSet *ConflictSet_create(int64_t oldestVersion);
 void ConflictSet_destroy(ConflictSet *cs);
 
 #endif
diff --git a/symbols.txt b/symbols.txt
index cc2a9f0..06ea86e 100644
--- a/symbols.txt
+++ b/symbols.txt
@@ -6,9 +6,9 @@ ConflictSet_setOldestVersion
 _ZN11ConflictSet16setOldestVersionEl
 _ZN11ConflictSet9addWritesEPKNS_10WriteRangeEi
 _ZN11ConflictSetaSEOS_
-_ZN11ConflictSetC1Elm
+_ZN11ConflictSetC1El
 _ZN11ConflictSetC1EOS_
-_ZN11ConflictSetC2Elm
+_ZN11ConflictSetC2El
 _ZN11ConflictSetC2EOS_
 _ZN11ConflictSetD1Ev
 _ZN11ConflictSetD2Ev
diff --git a/test_symbols.sh b/test_symbols.sh
index 6217cdf..386ad44 100755
--- a/test_symbols.sh
+++ b/test_symbols.sh
@@ -2,4 +2,5 @@
 
 set -euo pipefail
 
-diff -u <(nm $1 | grep " T " | cut -f3 -d " " | sort) $2
+diff -u "$2" <(nm "$1" | grep " T " | cut -f3 -d " " | sort)
+nm "$1" | grep " U " | (! grep -Pv 'abort|free|malloc|mem[a-z]*')