diff --git a/diff_tests/perf-latest.txt b/diff_tests/perf-latest.txt
index 952632f5..cf0c6604 100644
--- a/diff_tests/perf-latest.txt
+++ b/diff_tests/perf-latest.txt
@@ -1,19 +1,19 @@
-Start testing: May 23 06:41 UTC
+Start testing: May 23 11:53 UTC
 ----------------------------------------------------------
 1153/1582 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc
 1153/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc
 Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/dc.bc" "ir.json"
 Directory: /home/runner/work/SVF/SVF/Release-build/bin
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" start time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" start time: May 23 11:53 UTC
 Output:
 ----------------------------------------------------------
 Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/dc.bc
 Executing command: ./wpa -vfspta -read-json ir.json
 <end of output>
-Test time =   0.96 sec
+Test time =   0.97 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" end time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" end time: May 23 11:53 UTC
 "diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" time elapsed: 00:00:00
 ----------------------------------------------------------
 
@@ -21,7 +21,7 @@ Test Passed.
 1154/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc
 Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bc.bc" "ir.json"
 Directory: /home/runner/work/SVF/SVF/Release-build/bin
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" start time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" start time: May 23 11:53 UTC
 Output:
 ----------------------------------------------------------
 Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bc.bc
@@ -30,7 +30,7 @@ Executing command: ./wpa -vfspta -read-json ir.json
 Test time =   1.80 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" end time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" end time: May 23 11:53 UTC
 "diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" time elapsed: 00:00:01
 ----------------------------------------------------------
 
@@ -38,16 +38,16 @@ Test Passed.
 1155/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc
 Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libbz2.so.bc" "ir.json"
 Directory: /home/runner/work/SVF/SVF/Release-build/bin
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" start time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" start time: May 23 11:53 UTC
 Output:
 ----------------------------------------------------------
 Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libbz2.so.bc
 Executing command: ./wpa -vfspta -read-json ir.json
 <end of output>
-Test time =   2.56 sec
+Test time =   2.50 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" end time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" end time: May 23 11:53 UTC
 "diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" time elapsed: 00:00:02
 ----------------------------------------------------------
 
@@ -55,16 +55,16 @@ Test Passed.
 1156/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc
 Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bunzip2.bc" "ir.json"
 Directory: /home/runner/work/SVF/SVF/Release-build/bin
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" start time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" start time: May 23 11:53 UTC
 Output:
 ----------------------------------------------------------
 Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bunzip2.bc
 Executing command: ./wpa -vfspta -read-json ir.json
 <end of output>
-Test time =   3.06 sec
+Test time =   3.03 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" end time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" end time: May 23 11:53 UTC
 "diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" time elapsed: 00:00:03
 ----------------------------------------------------------
 
@@ -72,52 +72,52 @@ Test Passed.
 1157/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc
 Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/htop.bc" "ir.json"
 Directory: /home/runner/work/SVF/SVF/Release-build/bin
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" start time: May 23 06:41 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" start time: May 23 11:53 UTC
 Output:
 ----------------------------------------------------------
 vcall gep idx not constantint
 Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/htop.bc
 Executing command: ./wpa -vfspta -read-json ir.json
 <end of output>
-Test time =  10.39 sec
+Test time =   9.61 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" end time: May 23 06:41 UTC
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" time elapsed: 00:00:10
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" end time: May 23 11:53 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" time elapsed: 00:00:09
 ----------------------------------------------------------
 
 1158/1582 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc
 1158/1582 Test: diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc
 Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -ander -dump-json=ir.json" "wpa -ander -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libcurl.so.bc" "ir.json"
 Directory: /home/runner/work/SVF/SVF/Release-build/bin
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" start time: May 23 06:41 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" start time: May 23 11:53 UTC
 Output:
 ----------------------------------------------------------
 Executing command: ./wpa -ander -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libcurl.so.bc
 Executing command: ./wpa -ander -read-json ir.json
 <end of output>
-Test time =  35.36 sec
+Test time =  32.98 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" end time: May 23 06:42 UTC
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" time elapsed: 00:00:35
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" end time: May 23 11:54 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" time elapsed: 00:00:32
 ----------------------------------------------------------
 
 1159/1582 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc
 1159/1582 Test: diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc
 Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -ander -dump-json=ir.json" "wpa -ander -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bash.bc" "ir.json"
 Directory: /home/runner/work/SVF/SVF/Release-build/bin
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" start time: May 23 06:42 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" start time: May 23 11:54 UTC
 Output:
 ----------------------------------------------------------
 Executing command: ./wpa -ander -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bash.bc
 Executing command: ./wpa -ander -read-json ir.json
 <end of output>
-Test time =  43.21 sec
+Test time =  40.97 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" end time: May 23 06:42 UTC
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" time elapsed: 00:00:43
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" end time: May 23 11:54 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" time elapsed: 00:00:40
 ----------------------------------------------------------
 
-End testing: May 23 06:42 UTC
+End testing: May 23 11:54 UTC
diff --git a/diff_tests/perf_history/perf-2024-05-23T11:54:45.txt b/diff_tests/perf_history/perf-2024-05-23T11:54:45.txt
new file mode 100644
index 00000000..cf0c6604
--- /dev/null
+++ b/diff_tests/perf_history/perf-2024-05-23T11:54:45.txt
@@ -0,0 +1,123 @@
+Start testing: May 23 11:53 UTC
+----------------------------------------------------------
+1153/1582 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc
+1153/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc
+Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/dc.bc" "ir.json"
+Directory: /home/runner/work/SVF/SVF/Release-build/bin
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" start time: May 23 11:53 UTC
+Output:
+----------------------------------------------------------
+Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/dc.bc
+Executing command: ./wpa -vfspta -read-json ir.json
+<end of output>
+Test time =   0.97 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" end time: May 23 11:53 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" time elapsed: 00:00:00
+----------------------------------------------------------
+
+1154/1582 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc
+1154/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc
+Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bc.bc" "ir.json"
+Directory: /home/runner/work/SVF/SVF/Release-build/bin
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" start time: May 23 11:53 UTC
+Output:
+----------------------------------------------------------
+Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bc.bc
+Executing command: ./wpa -vfspta -read-json ir.json
+<end of output>
+Test time =   1.80 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" end time: May 23 11:53 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" time elapsed: 00:00:01
+----------------------------------------------------------
+
+1155/1582 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc
+1155/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc
+Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libbz2.so.bc" "ir.json"
+Directory: /home/runner/work/SVF/SVF/Release-build/bin
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" start time: May 23 11:53 UTC
+Output:
+----------------------------------------------------------
+Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libbz2.so.bc
+Executing command: ./wpa -vfspta -read-json ir.json
+<end of output>
+Test time =   2.50 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" end time: May 23 11:53 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" time elapsed: 00:00:02
+----------------------------------------------------------
+
+1156/1582 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc
+1156/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc
+Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bunzip2.bc" "ir.json"
+Directory: /home/runner/work/SVF/SVF/Release-build/bin
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" start time: May 23 11:53 UTC
+Output:
+----------------------------------------------------------
+Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bunzip2.bc
+Executing command: ./wpa -vfspta -read-json ir.json
+<end of output>
+Test time =   3.03 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" end time: May 23 11:53 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" time elapsed: 00:00:03
+----------------------------------------------------------
+
+1157/1582 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc
+1157/1582 Test: diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc
+Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -vfspta -dump-vfg -dump-json=ir.json" "wpa -vfspta -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/htop.bc" "ir.json"
+Directory: /home/runner/work/SVF/SVF/Release-build/bin
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" start time: May 23 11:53 UTC
+Output:
+----------------------------------------------------------
+vcall gep idx not constantint
+Executing command: ./wpa -vfspta -dump-vfg -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/htop.bc
+Executing command: ./wpa -vfspta -read-json ir.json
+<end of output>
+Test time =   9.61 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" end time: May 23 11:53 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" time elapsed: 00:00:09
+----------------------------------------------------------
+
+1158/1582 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc
+1158/1582 Test: diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc
+Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -ander -dump-json=ir.json" "wpa -ander -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libcurl.so.bc" "ir.json"
+Directory: /home/runner/work/SVF/SVF/Release-build/bin
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" start time: May 23 11:53 UTC
+Output:
+----------------------------------------------------------
+Executing command: ./wpa -ander -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/libcurl.so.bc
+Executing command: ./wpa -ander -read-json ir.json
+<end of output>
+Test time =  32.98 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" end time: May 23 11:54 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" time elapsed: 00:00:32
+----------------------------------------------------------
+
+1159/1582 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc
+1159/1582 Test: diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc
+Command: "/home/runner/work/SVF/SVF/Test-Suite/diff_tests/difftest.py" "wpa -ander -dump-json=ir.json" "wpa -ander -read-json" "/home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bash.bc" "ir.json"
+Directory: /home/runner/work/SVF/SVF/Release-build/bin
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" start time: May 23 11:54 UTC
+Output:
+----------------------------------------------------------
+Executing command: ./wpa -ander -dump-json=ir.json /home/runner/work/SVF/SVF/Test-Suite/test_cases_bc/crux-bc/bash.bc
+Executing command: ./wpa -ander -read-json ir.json
+<end of output>
+Test time =  40.97 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" end time: May 23 11:54 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" time elapsed: 00:00:40
+----------------------------------------------------------
+
+End testing: May 23 11:54 UTC