Testing memory leaks in LLVM IR generated from Rust language but throwing an error. about svf HOT 7 CLOSED

inline NodeID getDef(const PAGNode* pagNode) const
    {
        SVFUtil::outs() << *pagNode << std::endl; // a new statement.
        PAGNodeToDefMapTy::const_iterator it = PAGNodeToDefMap.find(pagNode);
        assert(it!=PAGNodeToDefMap.end() && "SVFVar does not have a definition??");
        return it->second;
    }

void VFG::connectDirectVFGEdges()
{

    for(iterator it = begin(), eit = end(); it!=eit; ++it)
    {
        NodeID nodeId = it->first;
        VFGNode* node = it->second;

        if(StmtVFGNode* stmtNode = SVFUtil::dyn_cast<StmtVFGNode>(node))
        {
            /// do not handle AddrSVFG node, as it is already the source of a definition
            if(SVFUtil::isa<AddrVFGNode>(stmtNode))
                continue;
            /// for all other cases, like copy/gep/load/ret, connect the RHS pointer to its def
            if (stmtNode->getPAGSrcNode()->isConstDataOrAggDataButNotNullPtr() == false){
                SVFUtil::outs()<< *stmtNode << "\n"; // a new statement.
                addIntraDirectVFEdge(getDef(stmtNode->getPAGSrcNode()), nodeId);
            }
....
}

CopyVFGNode ID: 379 CopyStmt: [Var2036 <-- Var2033]
   %s = inttoptr i64 %c_string to ptr, !dbg !136 { "ln": 20, "cl": 21, "fl": "src/main.rs" }
ValVar ID: 2033
   %c_string = ptrtoint ptr %_2 to i64, !dbg !134 { "ln": 18, "cl": 33, "fl": "src/main.rs" }
saber: /SVF/svf/include/Graphs/VFG.h:428: SVF::NodeID SVF::VFG::getDef(const SVF::PAGNode*) const: Assertion `it!=PAGNodeToDefMap.end() && "SVFVar does not have a definition??"' failed.
[1]    230733 IOT instruction (core dumped)  ../../Debug-build/bin/saber -leak

ValVar ID: 2033
   %c_string = ptrtoint ptr %_2 to i64, !dbg !134 { "ln": 18, "cl": 33, "fl": "src/main.rs" }