diff --git a/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/data/agg_op/test18.txt b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/data/agg_op/test18.txt
new file mode 100644
index 00000000000..30aaa957891
--- /dev/null
+++ b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/data/agg_op/test18.txt
@@ -0,0 +1,35 @@
+4
+4 0/1 10/1 10/1 10/1 10/1 20/1 0/1 20/1 
+4 10/1 0/1 20/1 0/1 20/1 10/1 10/1 10/1 
+4 10/1 20/1 20/1 20/1 20/1 30/1 10/1 30/1 
+4 20/1 10/1 30/1 10/1 30/1 20/1 20/1 20/1 
+1
+8 11/1 11/1 15/1 11/1 15/1 15/1 16/1 15/1 16/1 16/1 15/1 16/1 15/1 15/1 11/1 15/1  1 4 12/1 12/1 12/1 14/1 14/1 14/1 14/1 12/1  
+
+1
+12 10/1 0/1 20/1 0/1 20/1 10/1 30/1 10/1 30/1 20/1 20/1 20/1 20/1 30/1 10/1 30/1 10/1 20/1 0/1 20/1 0/1 10/1 10/1 10/1  1 4 20/1 20/1 20/1 10/1 10/1 10/1 10/1 20/1  
+
+1
+8 11/1 11/1 15/1 11/1 15/1 15/1 16/1 15/1 16/1 16/1 15/1 16/1 15/1 15/1 11/1 15/1  1 4 14/1 14/1 14/1 12/1 12/1 12/1 12/1 14/1  
+
+2
+12 10/1 0/1 20/1 0/1 20/1 10/1 30/1 10/1 30/1 20/1 20/1 20/1 20/1 30/1 10/1 30/1 10/1 20/1 0/1 20/1 0/1 10/1 10/1 10/1  1 4 20/1 20/1 20/1 10/1 10/1 10/1 10/1 20/1  
+8 11/1 11/1 15/1 11/1 15/1 15/1 16/1 15/1 16/1 16/1 15/1 16/1 15/1 15/1 11/1 15/1  1 4 14/1 14/1 14/1 12/1 12/1 12/1 12/1 14/1  
+
+0
+
+1
+8 11/1 11/1 15/1 11/1 15/1 15/1 16/1 15/1 16/1 16/1 15/1 16/1 15/1 15/1 11/1 15/1  1 4 14/1 14/1 14/1 12/1 12/1 12/1 12/1 14/1  
+
+0
+
+1
+12 10/1 0/1 20/1 0/1 20/1 10/1 30/1 10/1 30/1 20/1 20/1 20/1 20/1 30/1 10/1 30/1 10/1 20/1 0/1 20/1 0/1 10/1 10/1 10/1  1 4 20/1 20/1 20/1 10/1 10/1 10/1 10/1 20/1  
+
+1
+8 11/1 11/1 15/1 11/1 15/1 15/1 16/1 15/1 16/1 16/1 15/1 16/1 15/1 15/1 11/1 15/1  1 4 14/1 14/1 14/1 12/1 12/1 12/1 12/1 14/1  
+
+2
+12 10/1 0/1 20/1 0/1 20/1 10/1 30/1 10/1 30/1 20/1 20/1 20/1 20/1 30/1 10/1 30/1 10/1 20/1 0/1 20/1 0/1 10/1 10/1 10/1  1 4 20/1 20/1 20/1 10/1 10/1 10/1 10/1 20/1  
+8 11/1 11/1 15/1 11/1 15/1 15/1 16/1 15/1 16/1 16/1 15/1 16/1 15/1 15/1 11/1 15/1  1 4 14/1 14/1 14/1 12/1 12/1 12/1 12/1 14/1  
+
diff --git a/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/data/bop/test15.txt b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/data/bop/test15.txt
new file mode 100644
index 00000000000..4b25ba6df2c
--- /dev/null
+++ b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/data/bop/test15.txt
@@ -0,0 +1,23 @@
+0
+4 0/1 0/1 10/1 0/1 10/1 10/1 0/1 10/1 
+1
+8 1/1 1/1 2/1 1/1 2/1 2/1 3/1 2/1 3/1 3/1 2/1 3/1 2/1 2/1 1/1 2/1  0 
+1
+4 0/1 0/1 10/1 0/1 10/1 10/1 0/1 10/1  0 
+
+1
+8 1/1 1/1 2/1 1/1 2/1 2/1 3/1 2/1 3/1 3/1 2/1 3/1 2/1 2/1 1/1 2/1  0 
+
+1
+4 0/1 0/1 10/1 0/1 10/1 10/1 0/1 10/1  2 4 2/1 2/1 2/1 1/1 1/1 1/1 1/1 2/1  4 3/1 3/1 3/1 2/1 2/1 2/1 2/1 3/1  
+
+0
+
+1
+4 0/1 0/1 10/1 0/1 10/1 10/1 0/1 10/1  2 4 2/1 2/1 2/1 1/1 1/1 1/1 1/1 2/1  4 3/1 3/1 3/1 2/1 2/1 2/1 2/1 3/1  
+
+1
+0  1 4 0/1 10/1 10/1 10/1 10/1 0/1 0/1 0/1  
+
+1
+0  2 4 2/1 2/1 2/1 1/1 1/1 1/1 1/1 2/1  4 3/1 3/1 3/1 2/1 2/1 2/1 2/1 3/1  
diff --git a/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_agg_op.cmd b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_agg_op.cmd
index 92c33484d49..5d95534a22a 100644
--- a/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_agg_op.cmd
+++ b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_agg_op.cmd
@@ -15,3 +15,4 @@
 ./data/agg_op/test15.txt
 ./data/agg_op/test16.txt
 ./data/agg_op/test17.txt
+./data/agg_op/test18.txt
diff --git a/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_bop.cmd b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_bop.cmd
index bf81d23ae5d..d07dcd89113 100644
--- a/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_bop.cmd
+++ b/Packages/Boolean_set_operations_2/test/Boolean_set_operations_2/test_bop.cmd
@@ -11,4 +11,5 @@
 ./data/bop/test11.txt
 ./data/bop/test12.txt
 ./data/bop/test13.txt
-./data/bop/test14.txt
\ No newline at end of file
+./data/bop/test14.txt
+./data/bop/test15.txt
\ No newline at end of file