X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/adcfb1a36dc3a193da6b595829fef2d7f4c9a4dd..cc65d2b16b44aceb784687cf94626c7dca9423b4:/src/mc/mc_global.c

diff --git a/src/mc/mc_global.c b/src/mc/mc_global.c
index 81c594fce9..b700c10c97 100644
--- a/src/mc/mc_global.c
+++ b/src/mc/mc_global.c
@@ -173,7 +173,7 @@ void MC_init()
 
   MC_SET_STD_HEAP;
 
-  if (_sg_mc_visited > 0 || _sg_mc_liveness) {
+  if (_sg_mc_visited > 0 || _sg_mc_liveness  || _sg_mc_termination) {
     /* Ignore some variables from xbt/ex.h used by exception e for stacks comparison */
     MC_ignore_local_variable("e", "*");
     MC_ignore_local_variable("__ex_cleanup", "*");
@@ -216,9 +216,8 @@ void MC_init()
 
     smx_process_t process;
     xbt_swag_foreach(process, simix_global->process_list) {
-      MC_ignore_heap(&(process->process_hookup),
-                     sizeof(process->process_hookup));
-                     }
+      MC_ignore_heap(&(process->process_hookup), sizeof(process->process_hookup));
+    }
   }
 
   if (raw_mem_set)
@@ -250,8 +249,11 @@ static void MC_modelcheck_comm_determinism_init(void)
   initial_global_state = xbt_new0(s_mc_global_t, 1);
   initial_global_state->snapshot = MC_take_snapshot(0);
   initial_global_state->initial_communications_pattern_done = 0;
-  initial_global_state->comm_deterministic = 1;
+  initial_global_state->recv_deterministic = 1;
   initial_global_state->send_deterministic = 1;
+  initial_global_state->recv_diff = NULL;
+  initial_global_state->send_diff = NULL;
+
   MC_SET_STD_HEAP;
 
   MC_modelcheck_comm_determinism();
@@ -330,11 +332,15 @@ void MC_do_the_modelcheck_for_real()
 
   if (_sg_mc_comms_determinism || _sg_mc_send_determinism) {
     XBT_INFO("Check communication determinism");
+    mc_reduce_kind = e_mc_reduce_none;
     MC_modelcheck_comm_determinism_init();
   } else if (!_sg_mc_property_file || _sg_mc_property_file[0] == '\0') {
-    if (mc_reduce_kind == e_mc_reduce_unset)
-      mc_reduce_kind = e_mc_reduce_dpor;
-    XBT_INFO("Check a safety property");
+    if(_sg_mc_termination){
+      XBT_INFO("Check non progressive cycles");
+      mc_reduce_kind = e_mc_reduce_none;
+    }else{
+      XBT_INFO("Check a safety property");
+    }
     MC_modelcheck_safety_init();
   } else {
     if (mc_reduce_kind == e_mc_reduce_unset)
@@ -377,7 +383,7 @@ void handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int valu
     break;
   case MC_CALL_TYPE_SEND:
   case MC_CALL_TYPE_RECV:
-    get_comm_pattern(pattern, req, call_type);
+    get_comm_pattern(pattern, req, call_type, backtracking);
     break;
   case MC_CALL_TYPE_WAIT:
   case MC_CALL_TYPE_WAITANY:
@@ -387,10 +393,7 @@ void handle_comm_pattern(e_mc_call_type_t call_type, smx_simcall_t req, int valu
         current_comm = simcall_comm_wait__get__comm(req);
       else
         current_comm = xbt_dynar_get_as(simcall_comm_waitany__get__comms(req), value, smx_synchro_t);
-      // First wait only must be considered:
-      if (current_comm->comm.refcount == 1)
-        complete_comm_pattern(pattern, current_comm, backtracking);
-      break;
+      complete_comm_pattern(pattern, current_comm, req->issuer->pid, backtracking);
     }
   default:
     xbt_die("Unexpected call type %i", (int)call_type);
@@ -455,14 +458,16 @@ void MC_replay(xbt_fifo_t stack)
   XBT_DEBUG("**** Begin Replay ****");
 
   /* Intermediate backtracking */
-  start_item = xbt_fifo_get_first_item(stack);
-  state = (mc_state_t)xbt_fifo_get_item_content(start_item);
-  if(state->system_state){
-    MC_restore_snapshot(state->system_state);
-    if(_sg_mc_comms_determinism || _sg_mc_send_determinism) 
-      MC_restore_communications_pattern(state);
-    MC_SET_STD_HEAP;
-    return;
+  if(_sg_mc_checkpoint > 0 || _sg_mc_termination || _sg_mc_visited > 0) {
+    start_item = xbt_fifo_get_first_item(stack);
+    state = (mc_state_t)xbt_fifo_get_item_content(start_item);
+    if(state->system_state){
+      MC_restore_snapshot(state->system_state);
+      if(_sg_mc_comms_determinism || _sg_mc_send_determinism) 
+        MC_restore_communications_pattern(state);
+      MC_SET_STD_HEAP;
+      return;
+    }
   }
 
 
@@ -553,12 +558,14 @@ void MC_replay_liveness(xbt_fifo_t stack)
   XBT_DEBUG("**** Begin Replay ****");
 
   /* Intermediate backtracking */
-  item = xbt_fifo_get_first_item(stack);
-  pair = (mc_pair_t) xbt_fifo_get_item_content(item);
-  if(pair->graph_state->system_state){
-    MC_restore_snapshot(pair->graph_state->system_state);
-    MC_SET_STD_HEAP;
-    return;
+  if(_sg_mc_checkpoint > 0) {
+    item = xbt_fifo_get_first_item(stack);
+    pair = (mc_pair_t) xbt_fifo_get_item_content(item);
+    if(pair->graph_state->system_state){
+      MC_restore_snapshot(pair->graph_state->system_state);
+      MC_SET_STD_HEAP;
+      return;
+    }
   }
 
   /* Restore the initial state */
@@ -687,6 +694,15 @@ void MC_show_deadlock(smx_simcall_t req)
   MC_print_statistics(mc_stats);
 }
 
+void MC_show_non_termination(void){
+  XBT_INFO("******************************************");
+  XBT_INFO("*** NON-PROGRESSIVE CYCLE DETECTED ***");
+  XBT_INFO("******************************************");
+  XBT_INFO("Counter-example execution trace:");
+  MC_dump_stack_safety(mc_stack);
+  MC_print_statistics(mc_stats);
+}
+
 
 void MC_show_stack_liveness(xbt_fifo_t stack)
 {
@@ -726,11 +742,23 @@ void MC_dump_stack_liveness(xbt_fifo_t stack)
 
 }
 
-
 void MC_print_statistics(mc_stats_t stats)
 {
   xbt_mheap_t previous_heap = mmalloc_get_current_heap();
 
+  if(_sg_mc_comms_determinism) {
+    if (!initial_global_state->recv_deterministic && initial_global_state->send_deterministic){
+      XBT_INFO("******************************************************");
+      XBT_INFO("**** Only-send-deterministic communication pattern ****");
+      XBT_INFO("******************************************************");
+      XBT_INFO("%s", initial_global_state->recv_diff);
+    }else if(!initial_global_state->send_deterministic && initial_global_state->recv_deterministic) {
+      XBT_INFO("******************************************************");
+      XBT_INFO("**** Only-recv-deterministic communication pattern ****");
+      XBT_INFO("******************************************************");
+      XBT_INFO("%s", initial_global_state->send_diff);
+    }
+  }
   if (stats->expanded_pairs == 0) {
     XBT_INFO("Expanded states = %lu", stats->expanded_states);
     XBT_INFO("Visited states = %lu", stats->visited_states);
@@ -744,11 +772,10 @@ void MC_print_statistics(mc_stats_t stats)
     fprintf(dot_output, "}\n");
     fclose(dot_output);
   }
-  if (initial_global_state != NULL) {
+  if (initial_global_state != NULL && (_sg_mc_comms_determinism || _sg_mc_send_determinism)) {
+    XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes");
     if (_sg_mc_comms_determinism)
-      XBT_INFO("Communication-deterministic : %s", !initial_global_state->comm_deterministic ? "No" : "Yes");
-    if (_sg_mc_send_determinism)
-      XBT_INFO("Send-deterministic : %s", !initial_global_state->send_deterministic ? "No" : "Yes");
+      XBT_INFO("Recv-deterministic : %s", !initial_global_state->recv_deterministic ? "No" : "Yes");
   }
   mmalloc_set_current_heap(previous_heap);
 }