model-checker : remove comment and add debug message

[simgrid.git] / src / mc / mc_dpor.c

diff --git a/src/mc/mc_dpor.c b/src/mc/mc_dpor.c
index 565e389..a943e9e 100644 (file)
--- a/src/mc/mc_dpor.c
+++ b/src/mc/mc_dpor.c
@@ -82,11 +82,11 @@ static int is_visited_state(){
       state_test = (mc_visited_state_t)xbt_dynar_get_as(visited_states, cursor, mc_visited_state_t);
       bytes_used_test = state_test->heap_bytes_used;
       nb_processes_test = state_test->nb_processes;
-      if(nb_processes_test < current_nb_processes)
+      if(nb_processes_test < current_nb_processes){
         start = cursor + 1;
-      if(nb_processes_test > current_nb_processes)
-        end = cursor - 1; 
-      if(nb_processes_test == current_nb_processes){
+      }else if(nb_processes_test > current_nb_processes){
+        end = cursor - 1;
+      }else if(nb_processes_test == current_nb_processes){
         if(bytes_used_test < current_bytes_used)
           start = cursor + 1;
         if(bytes_used_test > current_bytes_used)
@@ -282,7 +282,8 @@ void MC_dpor(void)
         xbt_free(req_str);
       }
         
-      req_str = MC_request_get_dot_output(req, value);
+      if(dot_output != NULL)
+        req_str = MC_request_get_dot_output(req, value);
 
       MC_state_set_executed_request(state, req, value);
       mc_stats->executed_transitions++;
@@ -345,7 +346,8 @@ void MC_dpor(void)
 
       MC_UNSET_RAW_MEM;
 
-      xbt_free(req_str);
+      if(dot_output != NULL)
+        xbt_free(req_str);
 
       /* Let's loop again */
 
@@ -376,7 +378,18 @@ void MC_dpor(void)
           }
         }
 
-        max_depth_reached = 1;
+        if(MC_state_interleave_size(state) > 0){
+          max_depth_reached = 1;
+        }else{
+          /* Trash the current state, no longer needed */
+          MC_SET_RAW_MEM;
+          xbt_fifo_shift(mc_stack_safety);
+          MC_state_delete(state);
+          MC_UNSET_RAW_MEM;
+
+          max_depth_reached = 0;
+        }
+        
 
       }else{
 
@@ -475,6 +488,7 @@ void MC_dpor(void)
           XBT_DEBUG("Back-tracking to depth %d", xbt_fifo_size(mc_stack_safety));
           break;
         } else {
+          XBT_DEBUG("Delete state at depth %d",xbt_fifo_size(mc_stack_safety) + 1); 
           MC_state_delete(state);
         }
       }