diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index d4c956ecdb8c76a308491ad9b6ef439a33e98c89..8f392a2ea10a9717601a9ae56db6cd6983ad2d9a 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -62,12 +62,6 @@ add_executable(hybrid-sog main.cpp
   ModelCheckBaseMT.h
   ModelCheckLace.cpp
   ModelCheckLace.h
-  SogKripkeStateOTF.cpp
-  SogKripkeStateOTF.h
-  SogKripkeIteratorOTF.cpp
-  SogKripkeIteratorOTF.h
-  SogKripkeOTF.cpp
-  SogKripkeOTF.h
   SogKripkeTh.cpp
   SogKripkeTh.h
   SogKripkeStateTh.cpp
diff --git a/src/SogKripkeIteratorOTF.cpp b/src/SogKripkeIteratorOTF.cpp
deleted file mode 100644
index e2e73dc50c9ad663841a0764b5dc4d4d5463e54a..0000000000000000000000000000000000000000
--- a/src/SogKripkeIteratorOTF.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <spot/kripke/kripke.hh>
-#include "LDDGraph.h"
-#include "SogKripkeStateOTF.h"
-#include "SogKripkeIteratorOTF.h"
-
-
-SogKripkeIteratorOTF::SogKripkeIteratorOTF(const LDDState* lddstate, bdd cnd):m_lddstate(lddstate), kripke_succ_iterator(cnd)
-{
-
-    m_lddstate->setDiv(true);
-    for (int i=0;i<m_lddstate->getSuccessors()->size();i++) {
-        m_lsucc.push_back(m_lddstate->getSuccessors()->at(i));
-    }
-   /* if (lddstate->isDeadLock()) {
-        m_lsucc.push_back(pair(,-1));
-    }*/
-    if (lddstate->isDiv()) {
-        m_lsucc.push_back(pair<LDDState*,int>(m_lddstate,-1));
-    }
-
-}
-bool SogKripkeIteratorOTF::first() {
-
-   // cout<<"entering "<<__func__<<endl;
-    m_current_edge=0;
-    //cout<<"exciting "<<__func__<<endl;
-    return m_lsucc.size()!=0;
-
-}
-
-bool SogKripkeIteratorOTF::next() {
-    //cout<<"entering "<<__func__<<endl;
-    m_current_edge++;
-    return m_current_edge<m_lsucc.size();
-
-}
-
-bool SogKripkeIteratorOTF::done() const {
-    //cout<<"entring /excit"<<__func__<<endl;
-    return m_current_edge==m_lsucc.size();
-
-}
-
-SogKripkeStateOTF* SogKripkeIteratorOTF::dst() const
-  {
-    //cout<<"enter/excit "<<__func__<<endl;
-    return new SogKripkeStateOTF(m_lsucc.at(m_current_edge).first);
-  }
-
-bdd SogKripkeIteratorOTF::cond()  const {
-    //cout<<"entering "<<__func__<<endl;
-    if (m_lsucc.at(m_current_edge).second==-1) return bddtrue;
-
-    string name=m_builder->getTransition(m_lsucc.at(m_current_edge).second);
-    //cout<<"Value "<<m_lddstate->getSuccessors()->at(m_current_edge).second<<" Transition name "<<name<<endl;
-
-    spot::bdd_dict *p=m_dict_ptr->get();
-    spot::formula f=spot::formula::ap(name);
-    bdd   result=bdd_ithvar((p->var_map.find(f))->second);
-
-    //cout<<"Iterator "<<__func__<<"  "<<m_current_edge<<"\n";*/
-    //cout<<"exciting "<<__func__<<endl;
-    return result & spot::kripke_succ_iterator::cond();
-}
-
-/*spot::acc_cond::mark_t SogKripkeIterator::acc() const {
-  //cout<<"Iterator acc()\n";
-  return 0U;
-}*/
-SogKripkeIteratorOTF::~SogKripkeIteratorOTF()
-{
-    //dtor
-}
-
-static ModelCheckLace * SogKripkeIteratorOTF::m_builder;
-static spot::bdd_dict_ptr* SogKripkeIteratorOTF::m_dict_ptr;
-static LDDState SogKripkeIteratorOTF::m_deadlock;
diff --git a/src/SogKripkeIteratorOTF.h b/src/SogKripkeIteratorOTF.h
deleted file mode 100644
index 717afbf3d42aaa0800b77e7b90f5f0dd839381eb..0000000000000000000000000000000000000000
--- a/src/SogKripkeIteratorOTF.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#ifndef SOGKRIPKEITERATOROTF_H_INCLUDED
-#define SOGKRIPKEITERATOROTF_H_INCLUDED
-#include "SogKripkeStateOTF.h"
-#include "ModelCheckLace.h"
-#include <spot/kripke/kripke.hh>
-// Iterator for a SOG graph
-class SogKripkeIteratorOTF : public spot::kripke_succ_iterator
-{
-public:
-    static LDDState m_deadlock;
-    static ModelCheckLace * m_builder;
-    static spot::bdd_dict_ptr* m_dict_ptr;
-  //  sog_succ_iterator(const RdPBDD& pn, const SogKripkeState& s, const bdd& c);
-    SogKripkeIteratorOTF(const LDDState* lddstate, bdd cnd);
-    virtual ~SogKripkeIteratorOTF();
-    bool first() override;
-    bool next() override;
-    bool done() const override;
-    SogKripkeStateOTF* dst() const override;
-    bdd cond() const override final;
-
-    SogKripkeStateOTF* current_state() const;
-
-    bdd current_condition() const;
-
-    int current_transition() const;
-
-    bdd current_acceptance_conditions() const;
-
-    std::string format_transition() const;
-
-private:
-    LDDState * m_lddstate;
-    vector<pair<LDDState*, int>> m_lsucc;
-    unsigned int m_current_edge=0;
-};
-
-
-#endif // SOGKRIPKEITERATOR_H_INCLUDED
diff --git a/src/SogKripkeOTF.cpp b/src/SogKripkeOTF.cpp
deleted file mode 100644
index 215b455210cc9c581af731542f9ab5cae76336b9..0000000000000000000000000000000000000000
--- a/src/SogKripkeOTF.cpp
+++ /dev/null
@@ -1,92 +0,0 @@
-#include <spot/twaalgos/dot.hh>
-#include <spot/twaalgos/hoa.hh>
-#include <spot/kripke/kripke.hh>
-#include <spot/twa/bdddict.hh>
-
-
-#include "SogKripkeIteratorOTF.h"
-#include "SogKripkeStateOTF.h"
-
-#include "SogKripkeOTF.h"
-#include <map>
-using namespace spot;
-SogKripkeOTF::SogKripkeOTF(const bdd_dict_ptr &dict_ptr,ModelCheckLace *builder): spot::kripke(dict_ptr),m_builder(builder)
-{
-    SogKripkeIteratorOTF::m_builder=builder;
-    SogKripkeStateOTF::m_builder=builder;
-    SogKripkeIteratorOTF::m_dict_ptr=&dict_ptr;
-
-    //cout<<__func__<<endl;
-}
-
-SogKripkeOTF::SogKripkeOTF(const spot::bdd_dict_ptr& dict_ptr,ModelCheckLace *builder,set<string> &l_transap,set<string> &l_placeap):SogKripkeOTF(dict_ptr,builder)
-{
-
-    for (auto it=l_transap.begin(); it!=l_transap.end(); it++)
-    {
-        register_ap(*it);
-    }
-    for (auto it=l_placeap.begin(); it!=l_placeap.end(); it++)
-        register_ap(*it);
-
-}
-
-
-state* SogKripkeOTF::get_init_state() const
-{
-    // cout<<__func__<<endl;
-    return new SogKripkeStateOTF(m_builder->buildInitialMetaState());//new SpotSogState();
-
-}
-// Allows to print state label representing its id
-std::string SogKripkeOTF::format_state(const spot::state* s) const
-{
-    //cout<<__func__<<endl;
-    auto ss = static_cast<const SogKripkeStateOTF*>(s);
-    std::ostringstream out;
-    out << "( " << ss->getLDDState()->getLDDValue() <<  ")";
-    return out.str();
-}
-
-SogKripkeIteratorOTF* SogKripkeOTF::succ_iter(const spot::state* s) const
-{
-//  cout<<__func__<<endl;
-
-    auto ss = static_cast<const SogKripkeStateOTF*>(s);
-    //////////////////////////////////////////////
-
-    return new SogKripkeIteratorOTF(ss->getLDDState(),state_condition(ss));//,b);//s state_condition(ss));
-}
-
-bdd SogKripkeOTF::state_condition(const spot::state* s) const
-{
-
-    auto ss = static_cast<const SogKripkeStateOTF*>(s);
-    vector<int> marked_place=ss->getLDDState()->getMarkedPlaces(m_builder->getPlaceProposition());
-
-
-    bdd result=bddtrue;
-    // Marked places
-    for (auto it=marked_place.begin(); it!=marked_place.end(); it++)
-    {
-        string name=m_builder->getPlace(*it);
-        spot::formula f=spot::formula::ap(name);
-        result&=bdd_ithvar((dict_->var_map.find(f))->second);
-    }
-    vector<int> unmarked_place=ss->getLDDState()->getUnmarkedPlaces(m_builder->getPlaceProposition());
-    for (auto it=unmarked_place.begin(); it!=unmarked_place.end(); it++)
-    {
-        string name=m_builder->getPlace(*it);
-        spot::formula f=spot::formula::ap(name);
-        result&=!bdd_ithvar((dict_->var_map.find(f))->second);
-    }
-
-    return result;
-}
-
-
-SogKripkeOTF::~SogKripkeOTF()
-{
-    //dtor
-}
-
diff --git a/src/SogKripkeOTF.h b/src/SogKripkeOTF.h
deleted file mode 100644
index f43f518b11b74821d8e5b42fd868cb3bcbfadba4..0000000000000000000000000000000000000000
--- a/src/SogKripkeOTF.h
+++ /dev/null
@@ -1,34 +0,0 @@
-#ifndef SOGKRIPKEOTF_H_INCLUDED
-#define SOGKRIPKEOTF_H_INCLUDED
-#include "LDDGraph.h"
-#include "SogKripkeIteratorOTF.h"
-#include <spot/kripke/kripke.hh>
-#include <LDDGraph.h>
-#include <NewNet.h>
-
-
-class SogKripkeOTF: public spot::kripke {
-    public:
-
-        SogKripkeOTF(const spot::bdd_dict_ptr& dict_ptr,ModelCheckLace *builder);
-        SogKripkeOTF(const spot::bdd_dict_ptr& dict_ptr,ModelCheckLace *builder,set<string> &l_transap,set<string> &l_placeap);
-        virtual ~SogKripkeOTF();
-        spot::state* get_init_state() const;
-        SogKripkeIteratorOTF* succ_iter(const spot::state* s) const override;
-        std::string format_state(const spot::state* s) const override;
-        bdd state_condition(const spot::state* s) const override;
-
-          /// \brief Get the graph associated to the automaton.
-       /* const LDDGraph& get_graph() const {
-        return *m_sog;
-  }*/
-        ModelCheckLace *m_builder;
-
-    protected:
-
-    private:
-    std::map<int, int> place_prop;
-    //LDDGraph* m_sog;
-};
-
-#endif // SOGKRIPKE_H_INCLUDED
diff --git a/src/SogKripkeStateOTF.cpp b/src/SogKripkeStateOTF.cpp
deleted file mode 100644
index 8bc377b94153ff7d57e4a3ccb552c2cc26a3dfe2..0000000000000000000000000000000000000000
--- a/src/SogKripkeStateOTF.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <spot/kripke/kripke.hh>
-#include "LDDState.h"
-#include "SogKripkeStateOTF.h"
-
-
-SogKripkeStateOTF::~SogKripkeStateOTF()
-{
-    //dtor
-}
-
-static ModelCheckLace * SogKripkeStateOTF::m_builder;
diff --git a/src/SogKripkeStateOTF.h b/src/SogKripkeStateOTF.h
deleted file mode 100644
index 131787c88013f838c94dd4b8fca376ea56bff54b..0000000000000000000000000000000000000000
--- a/src/SogKripkeStateOTF.h
+++ /dev/null
@@ -1,46 +0,0 @@
-#ifndef SOGKRIPKESTATEOTF_H_INCLUDED
-#define SOGKRIPKESTATEOTF_H_INCLUDED
-
-
-#include "LDDState.h"
-#include "ModelCheckLace.h"
-
-class SogKripkeStateOTF : public spot::state
-{
-public:
-    static ModelCheckLace * m_builder;
-    SogKripkeStateOTF(LDDState *st):m_state(st) {
-            m_builder->buildSucc(st);
-    };
-    virtual ~SogKripkeStateOTF();
-
-    SogKripkeStateOTF* clone() const override
-    {
-        return new SogKripkeStateOTF(m_state);
-    }
-    size_t hash() const override
-    {
-        return m_state->getLDDValue();
-    }
-
-    int compare(const spot::state* other) const override
-    {
-        auto o = static_cast<const SogKripkeStateOTF*>(other);
-        size_t oh = o->hash();
-        size_t h = hash();
-        if (h < oh)
-            return -1;
-        else
-            return h > oh;
-    }
-    LDDState* getLDDState() {
-        return m_state;
-    }
-protected:
-
-private:
-    LDDState *m_state;
-};
-
-
-#endif // SOGKRIPKESTATE_H_INCLUDED
diff --git a/src/main.cpp b/src/main.cpp
index 34115a97cf6e794b1a2178d4ebcc8cbb85b795a7..bc75319b1d4e963d7dba2986c9b0f96db664b7d2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -25,7 +25,7 @@
 #include "NewNet.h"
 #include "SogTwa.h"
 #include "SogKripke.h"
-#include "SogKripkeOTF.h"
+
 #include "SogKripkeTh.h"