fix bug in SIPP when a location has zero safe intervals

Jiaoyang-Li · Jiaoyang-Li · commit d7b91fa5abdb · 2025-04-28T15:24:00.000-04:00
diff --git a/src/ReservationTable.cpp b/src/ReservationTable.cpp
@@ -58,6 +58,8 @@ void ReservationTable::insert2SIT(int location, int t_min, int t_max)
             it = sit[location].erase(it);
         }
     }
+    if (sit[location].empty()) // the location is blocked for the entire time horizon
+        sit[location].emplace_back(MAX_TIMESTEP, MAX_TIMESTEP, false); // insert a placeholder interval
 }
 
 void ReservationTable::insertSoftConstraint2SIT(int location, int t_min, int t_max)
@@ -180,7 +182,7 @@ void ReservationTable::updateSIT(int location)
     {
         if (constraint_table.length_min > constraint_table.length_max) // the location is blocked for the entire time horizon
         {
-            sit[location].emplace_back(0, 0, false);
+            sit[location].emplace_back(MAX_TIMESTEP, MAX_TIMESTEP, false); // insert a placeholder interval
             return;
         }
         if (0 < constraint_table.length_min)

Original file line number	Diff line number	Diff line change
`@@ -58,6 +58,8 @@ void ReservationTable::insert2SIT(int location, int t_min, int t_max)`
`58`	`58`	`it = sit[location].erase(it);`
`59`	`59`	`}`
`60`	`60`	`}`
	`61`	`+ if (sit[location].empty()) // the location is blocked for the entire time horizon`
	`62`	`+ sit[location].emplace_back(MAX_TIMESTEP, MAX_TIMESTEP, false); // insert a placeholder interval`
`61`	`63`	`}`
`62`	`64`
`63`	`65`	`void ReservationTable::insertSoftConstraint2SIT(int location, int t_min, int t_max)`
`@@ -180,7 +182,7 @@ void ReservationTable::updateSIT(int location)`
`180`	`182`	`{`
`181`	`183`	`if (constraint_table.length_min > constraint_table.length_max) // the location is blocked for the entire time horizon`
`182`	`184`	`{`
`183`		`- sit[location].emplace_back(0, 0, false);`
	`185`	`+ sit[location].emplace_back(MAX_TIMESTEP, MAX_TIMESTEP, false); // insert a placeholder interval`
`184`	`186`	`return;`
`185`	`187`	`}`
`186`	`188`	`if (0 < constraint_table.length_min)`