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[mc] Move mc_safety code in simgrid::mc
authorGabriel Corona <gabriel.corona@loria.fr>
Tue, 8 Mar 2016 13:07:14 +0000 (14:07 +0100)
committerGabriel Corona <gabriel.corona@loria.fr>
Tue, 8 Mar 2016 13:22:19 +0000 (14:22 +0100)
include/xbt/dynar.hpp
src/mc/mc_comm_determinism.cpp
src/mc/mc_compare.cpp
src/mc/mc_config.cpp
src/mc/mc_liveness.cpp
src/mc/mc_request.cpp
src/mc/mc_safety.cpp
src/mc/mc_safety.h
src/mc/mc_visited.cpp
src/mc/simgrid_mc.cpp

index a1b49c7..2129007 100644 (file)
@@ -32,6 +32,22 @@ DynarRange<T> range(xbt_dynar_t dynar)
     (T*) ((char*) dynar->data + dynar->used * dynar->elmsize));
 }
 
+/** Dynar of `T*` which `delete` its values */
+template<class T> inline
+xbt_dynar_t newDeleteDynar()
+{
+  return xbt_dynar_new(sizeof(T*),
+    [](void* p) { delete *(T**)p; });
+}
+
+/** Dynar of `T*` which `destroy()` its values */
+template<class T> inline
+xbt_dynar_t newDestroyDynar()
+{
+  return xbt_dynar_new(sizeof(T*),
+    [](void* p) { simgrid::xbt::destroy(*(T**)p); });
+}
+
 }
 }
 #endif
index 410510d..f1119d2 100644 (file)
@@ -7,6 +7,7 @@
 #include <cstdint>
 
 #include <xbt/dynar.h>
+#include <xbt/dynar.hpp>
 #include <xbt/fifo.h>
 #include <xbt/log.h>
 #include <xbt/sysdep.h>
@@ -304,7 +305,7 @@ static void MC_pre_modelcheck_comm_determinism(void)
   const int maxpid = MC_smx_get_maxpid();
 
   if (_sg_mc_visited > 0)
-    visited_states = xbt_dynar_new(sizeof(mc_visited_state_t), visited_state_free_voidp);
+    simgrid::mc::visited_states = simgrid::xbt::newDeleteDynar<simgrid::mc::VisitedState>();
  
   // Create initial_communications_pattern elements:
   initial_communications_pattern = xbt_dynar_new(sizeof(mc_list_comm_pattern_t), MC_list_comm_pattern_free_voidp);
@@ -342,7 +343,7 @@ static int MC_modelcheck_comm_determinism_main(void)
 
   char *req_str = nullptr;
   int value;
-  mc_visited_state_t visited_state = nullptr;
+  simgrid::mc::VisitedState* visited_state = nullptr;
   smx_simcall_t req = nullptr;
   mc_state_t state = nullptr, next_state = NULL;
 
@@ -392,7 +393,7 @@ static int MC_modelcheck_comm_determinism_main(void)
       /* Create the new expanded state */
       next_state = MC_state_new();
 
-      if ((visited_state = is_visited_state(next_state)) == nullptr) {
+      if ((visited_state = simgrid::mc::is_visited_state(next_state)) == nullptr) {
 
         /* Get enabled processes and insert them in the interleave set of the next state */
         for (auto& p : mc_model_checker->process().simix_processes())
@@ -462,7 +463,7 @@ static int MC_modelcheck_comm_determinism_main(void)
 int MC_modelcheck_comm_determinism(void)
 {
   XBT_INFO("Check communication determinism");
-  mc_reduce_kind = e_mc_reduce_none;
+  simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::none;
   mc_model_checker->wait_for_requests();
 
   if (mc_mode == MC_MODE_CLIENT)
index 9b65001..4afbc79 100644 (file)
@@ -369,10 +369,10 @@ int snapshot_compare(void *state1, void *state2)
     num1 = ((mc_state_t) state1)->num;
     num2 = ((mc_state_t) state2)->num;
   } else {                      /* Safety or comm determinism MC */
-    s1 = ((mc_visited_state_t) state1)->system_state;
-    s2 = ((mc_visited_state_t) state2)->system_state;
-    num1 = ((mc_visited_state_t) state1)->num;
-    num2 = ((mc_visited_state_t) state2)->num;
+    s1 = ((simgrid::mc::VisitedState*) state1)->system_state;
+    s2 = ((simgrid::mc::VisitedState*) state2)->system_state;
+    num1 = ((simgrid::mc::VisitedState*) state1)->num;
+    num2 = ((simgrid::mc::VisitedState*) state2)->num;
   }
 
   int errors = 0;
index 244b4a0..d7752f1 100644 (file)
@@ -25,9 +25,15 @@ extern "C" {
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_config, mc,
                                 "Configuration of MC");
 
+}
+
 #ifdef HAVE_MC
+namespace simgrid {
+namespace mc {
 /* Configuration support */
-e_mc_reduce_t mc_reduce_kind = e_mc_reduce_unset;
+simgrid::mc::ReductionMode reduction_mode = simgrid::mc::ReductionMode::unset;
+}
+}
 #endif
 
 #ifndef HAVE_MC
@@ -72,9 +78,9 @@ void _mc_cfg_cb_reduce(const char *name, int pos)
 
   char *val = xbt_cfg_get_string(_sg_cfg_set, name);
   if (!strcasecmp(val, "none"))
-    mc_reduce_kind = e_mc_reduce_none;
+    simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::none;
   else if (!strcasecmp(val, "dpor"))
-    mc_reduce_kind = e_mc_reduce_dpor;
+    simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::dpor;
   else
     xbt_die("configuration option %s can only take 'none' or 'dpor' as a value",
             name);
@@ -196,5 +202,3 @@ void _mc_cfg_cb_termination(const char *name, int pos)
 }
 
 #endif
-
-}
index b45c70c..718fe43 100644 (file)
@@ -379,8 +379,8 @@ static int MC_modelcheck_liveness_main(void)
 
 int modelcheck_liveness(void)
 {
-  if (mc_reduce_kind == e_mc_reduce_unset)
-    mc_reduce_kind = e_mc_reduce_none;
+  if (simgrid::mc::reduction_mode == simgrid::mc::ReductionMode::unset)
+    simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::none;
   XBT_INFO("Check the liveness property %s", _sg_mc_property_file);
   MC_automaton_load(_sg_mc_property_file);
   mc_model_checker->wait_for_requests();
index 29d008e..d6be451 100644 (file)
@@ -140,7 +140,7 @@ bool request_depend_asymmetric(smx_simcall_t r1, smx_simcall_t r2)
 // Those are MC_state_get_internal_request(state)
 bool request_depend(smx_simcall_t r1, smx_simcall_t r2)
 {
-  if (mc_reduce_kind == e_mc_reduce_none)
+  if (simgrid::mc::reduction_mode == simgrid::mc::ReductionMode::none)
     return true;
 
   if (r1->issuer == r2->issuer)
index bd63a0a..74fde12 100644 (file)
@@ -10,6 +10,7 @@
 
 #include <xbt/log.h>
 #include <xbt/dynar.h>
+#include <xbt/dynar.hpp>
 #include <xbt/fifo.h>
 #include <xbt/sysdep.h>
 
@@ -31,6 +32,9 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_safety, mc,
 
 }
 
+namespace simgrid {
+namespace mc {
+
 static int is_exploration_stack_state(mc_state_t current_state){
 
   xbt_fifo_item_t item;
@@ -45,15 +49,15 @@ static int is_exploration_stack_state(mc_state_t current_state){
   return 0;
 }
 
-static void MC_modelcheck_safety_init(void);
+static void modelcheck_safety_init(void);
 
 /**
  *  \brief Initialize the DPOR exploration algorithm
  */
-static void MC_pre_modelcheck_safety()
+static void pre_modelcheck_safety()
 {
   if (_sg_mc_visited > 0)
-    visited_states = xbt_dynar_new(sizeof(mc_visited_state_t), visited_state_free_voidp);
+    simgrid::mc::visited_states = simgrid::xbt::newDeleteDynar<simgrid::mc::VisitedState>();
 
   mc_state_t initial_state = MC_state_new();
 
@@ -67,7 +71,7 @@ static void MC_pre_modelcheck_safety()
   for (auto& p : mc_model_checker->process().simix_processes())
     if (simgrid::mc::process_is_enabled(&p.copy)) {
       MC_state_interleave_process(initial_state, &p.copy);
-      if (mc_reduce_kind != e_mc_reduce_none)
+      if (simgrid::mc::reduction_mode != simgrid::mc::ReductionMode::none)
         break;
     }
 
@@ -78,16 +82,16 @@ static void MC_pre_modelcheck_safety()
 /** \brief Model-check the application using a DFS exploration
  *         with DPOR (Dynamic Partial Order Reductions)
  */
-int MC_modelcheck_safety(void)
+int modelcheck_safety(void)
 {
-  MC_modelcheck_safety_init();
+  modelcheck_safety_init();
 
   char *req_str = nullptr;
   int value;
   smx_simcall_t req = nullptr;
   mc_state_t state = nullptr, prev_state = NULL, next_state = NULL;
   xbt_fifo_item_t item = nullptr;
-  mc_visited_state_t visited_state = nullptr;
+  simgrid::mc::VisitedState* visited_state = nullptr;
 
   while (xbt_fifo_size(mc_stack) > 0) {
 
@@ -133,13 +137,13 @@ int MC_modelcheck_safety(void)
           return SIMGRID_MC_EXIT_NON_TERMINATION;
       }
 
-      if ((visited_state = is_visited_state(next_state)) == nullptr) {
+      if ((visited_state = simgrid::mc::is_visited_state(next_state)) == nullptr) {
 
         /* Get an enabled process and insert it in the interleave set of the next state */
         for (auto& p : mc_model_checker->process().simix_processes())
           if (simgrid::mc::process_is_enabled(&p.copy)) {
             MC_state_interleave_process(next_state, &p.copy);
-            if (mc_reduce_kind != e_mc_reduce_none)
+            if (simgrid::mc::reduction_mode != simgrid::mc::ReductionMode::none)
               break;
           }
 
@@ -193,7 +197,7 @@ int MC_modelcheck_safety(void)
          state that executed that previous request. */
 
       while ((state = (mc_state_t) xbt_fifo_shift(mc_stack))) {
-        if (mc_reduce_kind == e_mc_reduce_dpor) {
+        if (simgrid::mc::reduction_mode == simgrid::mc::ReductionMode::dpor) {
           req = MC_state_get_internal_request(state);
           if (req->call == SIMCALL_MUTEX_LOCK || req->call == SIMCALL_MUTEX_TRYLOCK)
             xbt_die("Mutex is currently not supported with DPOR, "
@@ -258,12 +262,12 @@ int MC_modelcheck_safety(void)
   return SIMGRID_MC_EXIT_SUCCESS;
 }
 
-static void MC_modelcheck_safety_init(void)
+static void modelcheck_safety_init(void)
 {
   if(_sg_mc_termination)
-    mc_reduce_kind = e_mc_reduce_none;
-  else if (mc_reduce_kind == e_mc_reduce_unset)
-    mc_reduce_kind = e_mc_reduce_dpor;
+    simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::none;
+  else if (simgrid::mc::reduction_mode == simgrid::mc::ReductionMode::unset)
+    simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::dpor;
   _sg_mc_safety = 1;
   if (_sg_mc_termination)
     XBT_INFO("Check non progressive cycles");
@@ -278,9 +282,12 @@ static void MC_modelcheck_safety_init(void)
   /* Create exploration stack */
   mc_stack = xbt_fifo_new();
 
-  MC_pre_modelcheck_safety();
+  pre_modelcheck_safety();
 
   /* Save the initial state */
   initial_global_state = xbt_new0(s_mc_global_t, 1);
   initial_global_state->snapshot = simgrid::mc::take_snapshot(0);
 }
+
+}
+}
index 46c5ec9..931584b 100644 (file)
 #include "src/mc/mc_forward.hpp"
 #include "src/mc/mc_state.h"
 
-SG_BEGIN_DECL()
+namespace simgrid {
+namespace mc {
 
-typedef enum {
-  e_mc_reduce_unset,
-  e_mc_reduce_none,
-  e_mc_reduce_dpor
-} e_mc_reduce_t;
+enum class ReductionMode {
+  unset,
+  none,
+  dpor,
+};
 
-extern XBT_PRIVATE e_mc_reduce_t mc_reduce_kind;
+extern XBT_PRIVATE simgrid::mc::ReductionMode reduction_mode;
 
-int MC_modelcheck_safety(void);
+int modelcheck_safety(void);
 
-typedef struct XBT_PRIVATE s_mc_visited_state{
+struct XBT_PRIVATE VisitedState {
   mc_snapshot_t system_state;
   size_t heap_bytes_used;
   int nb_processes;
   int num;
   int other_num; // dot_output for
-}s_mc_visited_state_t, *mc_visited_state_t;
+
+  VisitedState();
+  ~VisitedState();
+};
 
 extern XBT_PRIVATE xbt_dynar_t visited_states;
-XBT_PRIVATE mc_visited_state_t is_visited_state(mc_state_t graph_state);
-XBT_PRIVATE void visited_state_free(mc_visited_state_t state);
-XBT_PRIVATE void visited_state_free_voidp(void *s);
+XBT_PRIVATE simgrid::mc::VisitedState* is_visited_state(mc_state_t graph_state);
 
-SG_END_DECL()
+}
+}
 
 #endif
index 8052590..8b084b5 100644 (file)
@@ -31,13 +31,9 @@ namespace simgrid {
 namespace mc {
 
 xbt_dynar_t visited_pairs;
-
-}
-}
-
 xbt_dynar_t visited_states;
 
-static int is_exploration_stack_state(mc_visited_state_t state){
+static int is_exploration_stack_state(simgrid::mc::VisitedState* state){
   xbt_fifo_item_t item = xbt_fifo_get_first_item(mc_stack);
   while (item) {
     if (((mc_state_t)xbt_fifo_get_item_content(item))->num == state->num){
@@ -49,44 +45,30 @@ static int is_exploration_stack_state(mc_visited_state_t state){
   return 0;
 }
 
-void visited_state_free(mc_visited_state_t state)
-{
-  if (!state)
-    return;
-  if(!is_exploration_stack_state(state))
-    delete state->system_state;
-  xbt_free(state);
-}
-
-void visited_state_free_voidp(void *s)
-{
-  visited_state_free((mc_visited_state_t) * (void **) s);
-}
-
 /**
  * \brief Save the current state
  * \return Snapshot of the current state.
  */
-static mc_visited_state_t visited_state_new()
+VisitedState::VisitedState()
 {
   simgrid::mc::Process* process = &(mc_model_checker->process());
-  mc_visited_state_t new_state = xbt_new0(s_mc_visited_state_t, 1);
-  new_state->heap_bytes_used = mmalloc_get_bytes_used_remote(
+  this->heap_bytes_used = mmalloc_get_bytes_used_remote(
     process->get_heap()->heaplimit,
     process->get_malloc_info());
 
   MC_process_smx_refresh(&mc_model_checker->process());
-  new_state->nb_processes =
+  this->nb_processes =
     mc_model_checker->process().smx_process_infos.size();
 
-  new_state->system_state = simgrid::mc::take_snapshot(mc_stats->expanded_states);
-  new_state->num = mc_stats->expanded_states;
-  new_state->other_num = -1;
-  return new_state;
+  this->num = mc_stats->expanded_states;
+  this->other_num = -1;
 }
 
-namespace simgrid {
-namespace mc {
+VisitedState::~VisitedState()
+{
+  if(!is_exploration_stack_state(this))
+    delete this->system_state;
+}
 
 VisitedPair::VisitedPair(int pair_num, xbt_automaton_state_t automaton_state, xbt_dynar_t atomic_propositions, mc_state_t graph_state)
 {
@@ -165,8 +147,8 @@ int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max)
     nb_processes = ((simgrid::mc::VisitedPair*) ref)->nb_processes;
     heap_bytes_used = ((simgrid::mc::VisitedPair*) ref)->heap_bytes_used;
   } else {
-    nb_processes = ((mc_visited_state_t) ref)->nb_processes;
-    heap_bytes_used = ((mc_visited_state_t) ref)->heap_bytes_used;
+    nb_processes = ((simgrid::mc::VisitedState*) ref)->nb_processes;
+    heap_bytes_used = ((simgrid::mc::VisitedState*) ref)->heap_bytes_used;
   }
 
   int start = 0;
@@ -179,9 +161,9 @@ int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max)
       nb_processes_test = ((simgrid::mc::VisitedPair*) ref_test)->nb_processes;
       heap_bytes_used_test = ((simgrid::mc::VisitedPair*) ref_test)->heap_bytes_used;
     } else {
-      ref_test = (mc_visited_state_t) xbt_dynar_get_as(list, cursor, mc_visited_state_t);
-      nb_processes_test = ((mc_visited_state_t) ref_test)->nb_processes;
-      heap_bytes_used_test = ((mc_visited_state_t) ref_test)->heap_bytes_used;
+      ref_test = (simgrid::mc::VisitedState*) xbt_dynar_get_as(list, cursor, simgrid::mc::VisitedState*);
+      nb_processes_test = ((simgrid::mc::VisitedState*) ref_test)->nb_processes;
+      heap_bytes_used_test = ((simgrid::mc::VisitedState*) ref_test)->heap_bytes_used;
     }
     if (nb_processes_test < nb_processes)
       start = cursor + 1;
@@ -200,9 +182,9 @@ int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max)
             nb_processes_test = ((simgrid::mc::VisitedPair*) ref_test)->nb_processes;
             heap_bytes_used_test = ((simgrid::mc::VisitedPair*) ref_test)->heap_bytes_used;
           } else {
-            ref_test = (mc_visited_state_t) xbt_dynar_get_as(list, previous_cursor, mc_visited_state_t);
-            nb_processes_test = ((mc_visited_state_t) ref_test)->nb_processes;
-            heap_bytes_used_test = ((mc_visited_state_t) ref_test)->heap_bytes_used;
+            ref_test = (simgrid::mc::VisitedState*) xbt_dynar_get_as(list, previous_cursor, simgrid::mc::VisitedState*);
+            nb_processes_test = ((simgrid::mc::VisitedState*) ref_test)->nb_processes;
+            heap_bytes_used_test = ((simgrid::mc::VisitedState*) ref_test)->heap_bytes_used;
           }
           if (nb_processes_test != nb_processes || heap_bytes_used_test != heap_bytes_used)
             break;
@@ -216,9 +198,9 @@ int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max)
             nb_processes_test = ((simgrid::mc::VisitedPair*) ref_test)->nb_processes;
             heap_bytes_used_test = ((simgrid::mc::VisitedPair*) ref_test)->heap_bytes_used;
           } else {
-            ref_test = (mc_visited_state_t) xbt_dynar_get_as(list, next_cursor, mc_visited_state_t);
-            nb_processes_test = ((mc_visited_state_t) ref_test)->nb_processes;
-            heap_bytes_used_test = ((mc_visited_state_t) ref_test)->heap_bytes_used;
+            ref_test = (simgrid::mc::VisitedState*) xbt_dynar_get_as(list, next_cursor, simgrid::mc::VisitedState*);
+            nb_processes_test = ((simgrid::mc::VisitedState*) ref_test)->nb_processes;
+            heap_bytes_used_test = ((simgrid::mc::VisitedState*) ref_test)->heap_bytes_used;
           }
           if (nb_processes_test != nb_processes || heap_bytes_used_test != heap_bytes_used)
             break;
@@ -233,7 +215,7 @@ int get_search_interval(xbt_dynar_t list, void *ref, int *min, int *max)
 
 static
 void replace_state(
-  mc_visited_state_t state_test, mc_visited_state_t new_state, int cursor)
+  simgrid::mc::VisitedState* state_test, simgrid::mc::VisitedState* new_state, int cursor)
 {
   if (state_test->other_num == -1)
     new_state->other_num = state_test->num;
@@ -251,8 +233,8 @@ void replace_state(
   /* Replace the old state with the new one (with a bigger num)
      (when the max number of visited states is reached,  the oldest
      one is removed according to its number (= with the min number) */
-  xbt_dynar_remove_at(visited_states, cursor, nullptr);
-  xbt_dynar_insert_at(visited_states, cursor, &new_state);
+  xbt_dynar_remove_at(simgrid::mc::visited_states, cursor, nullptr);
+  xbt_dynar_insert_at(simgrid::mc::visited_states, cursor, &new_state);
   XBT_DEBUG("Replace visited state %d with the new visited state %d",
     state_test->num, new_state->num);
 }
@@ -271,11 +253,13 @@ bool some_dommunications_are_not_finished()
   return false;
 }
 
+namespace simgrid {
+namespace mc {
+
 /**
  * \brief Checks whether a given state has already been visited by the algorithm.
  */
-
-mc_visited_state_t is_visited_state(mc_state_t graph_state)
+simgrid::mc::VisitedState* is_visited_state(mc_state_t graph_state)
 {
   if (_sg_mc_visited == 0)
     return nullptr;
@@ -286,7 +270,7 @@ mc_visited_state_t is_visited_state(mc_state_t graph_state)
   int partial_comm = (_sg_mc_comms_determinism || _sg_mc_send_determinism) &&
     some_dommunications_are_not_finished();
 
-  mc_visited_state_t new_state = visited_state_new();
+  simgrid::mc::VisitedState* new_state = new VisitedState();
   graph_state->system_state = new_state->system_state;
   graph_state->in_visited_states = 1;
   XBT_DEBUG("Snapshot %p of visited state %d (exploration stack state %d)", new_state->system_state, new_state->num, graph_state->num);
@@ -307,7 +291,7 @@ mc_visited_state_t is_visited_state(mc_state_t graph_state)
 
         int cursor = min;
         while (cursor <= max) {
-          mc_visited_state_t state_test = (mc_visited_state_t) xbt_dynar_get_as(visited_states, cursor, mc_visited_state_t);
+          simgrid::mc::VisitedState* state_test = (simgrid::mc::VisitedState*) xbt_dynar_get_as(visited_states, cursor, simgrid::mc::VisitedState*);
           if (snapshot_compare(state_test, new_state) == 0) {
             // The state has been visited:
 
@@ -324,7 +308,7 @@ mc_visited_state_t is_visited_state(mc_state_t graph_state)
     } else {
 
       // The state has not been visited: insert the state in the dynamic array.
-      mc_visited_state_t state_test = (mc_visited_state_t) xbt_dynar_get_as(visited_states, index, mc_visited_state_t);
+      simgrid::mc::VisitedState* state_test = (simgrid::mc::VisitedState*) xbt_dynar_get_as(visited_states, index, simgrid::mc::VisitedState*);
       if (state_test->nb_processes < new_state->nb_processes)
         xbt_dynar_insert_at(visited_states, index + 1, &new_state);
       else if (state_test->heap_bytes_used < new_state->heap_bytes_used)
@@ -348,7 +332,7 @@ mc_visited_state_t is_visited_state(mc_state_t graph_state)
       unsigned int cursor2 = 0;
       unsigned int index2 = 0;
 
-      mc_visited_state_t state_test;
+      simgrid::mc::VisitedState* state_test;
       xbt_dynar_foreach(visited_states, cursor2, state_test)
         if (!mc_model_checker->is_important_snapshot(*state_test->system_state)
             && state_test->num < min2) {
@@ -363,9 +347,6 @@ mc_visited_state_t is_visited_state(mc_state_t graph_state)
     return nullptr;
 }
 
-namespace simgrid {
-namespace mc {
-
 /**
  * \brief Checks whether a given pair has already been visited by the algorithm.
  */
index 04112ca..c05d0ae 100644 (file)
@@ -173,7 +173,7 @@ int main(int argc, char** argv)
     if (_sg_mc_comms_determinism || _sg_mc_send_determinism)
       res = MC_modelcheck_comm_determinism();
     else if (!_sg_mc_property_file || _sg_mc_property_file[0] == '\0')
-      res = MC_modelcheck_safety();
+      res = simgrid::mc::modelcheck_safety();
     else
       res = simgrid::mc::modelcheck_liveness();
     mc_model_checker->shutdown();