diff --git a/diff_tests/perf-latest.txt b/diff_tests/perf-latest.txt
index 58a2b0d7..e0704525 100644
--- a/diff_tests/perf-latest.txt
+++ b/diff_tests/perf-latest.txt
@@ -1,19 +1,19 @@
-Start testing: Feb 13 10:30 UTC
+Start testing: Feb 13 10:50 UTC
 ----------------------------------------------------------
 1158/1365 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc
 1158/1365 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: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" start time: Feb 13 10:50 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 =   0.93 sec
+Test time =   0.90 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" end time: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" end time: Feb 13 10:50 UTC
 "diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" time elapsed: 00:00:00
 ----------------------------------------------------------
 
@@ -21,16 +21,16 @@ Test Passed.
 1159/1365 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: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" start time: Feb 13 10:50 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 time =   1.71 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" end time: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" end time: Feb 13 10:50 UTC
 "diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" time elapsed: 00:00:01
 ----------------------------------------------------------
 
@@ -38,16 +38,16 @@ Test Passed.
 1160/1365 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: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" start time: Feb 13 10:50 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 =   2.62 sec
+Test time =   2.39 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" end time: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" end time: Feb 13 10:50 UTC
 "diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" time elapsed: 00:00:02
 ----------------------------------------------------------
 
@@ -55,69 +55,69 @@ Test Passed.
 1161/1365 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: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" start time: Feb 13 10:50 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 =   3.13 sec
+Test time =   2.89 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" end time: Feb 13 10:30 UTC
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" time elapsed: 00:00:03
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" time elapsed: 00:00:02
 ----------------------------------------------------------
 
 1162/1365 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc
 1162/1365 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: Feb 13 10:30 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" start time: Feb 13 10:50 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 =  10.86 sec
+Test time =   9.63 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" end time: Feb 13 10:30 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: Feb 13 10:50 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" time elapsed: 00:00:09
 ----------------------------------------------------------
 
 1163/1365 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc
 1163/1365 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: Feb 13 10:30 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" start time: Feb 13 10:50 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 =  34.77 sec
+Test time =  31.64 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" end time: Feb 13 10:31 UTC
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" time elapsed: 00:00:34
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" time elapsed: 00:00:31
 ----------------------------------------------------------
 
 1164/1365 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc
 1164/1365 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: Feb 13 10:31 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" start time: Feb 13 10:50 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 =  44.58 sec
+Test time =  38.87 sec
 ----------------------------------------------------------
 Test Passed.
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" end time: Feb 13 10:31 UTC
-"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" time elapsed: 00:00:44
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" end time: Feb 13 10:51 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" time elapsed: 00:00:38
 ----------------------------------------------------------
 
-End testing: Feb 13 10:31 UTC
+End testing: Feb 13 10:51 UTC
diff --git a/diff_tests/perf_history/perf-2024-02-13T10:51:32.txt b/diff_tests/perf_history/perf-2024-02-13T10:51:32.txt
new file mode 100644
index 00000000..e0704525
--- /dev/null
+++ b/diff_tests/perf_history/perf-2024-02-13T10:51:32.txt
@@ -0,0 +1,123 @@
+Start testing: Feb 13 10:50 UTC
+----------------------------------------------------------
+1158/1365 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc
+1158/1365 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: Feb 13 10:50 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 =   0.90 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/dc.bc" time elapsed: 00:00:00
+----------------------------------------------------------
+
+1159/1365 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc
+1159/1365 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: Feb 13 10:50 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 =   1.71 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bc.bc" time elapsed: 00:00:01
+----------------------------------------------------------
+
+1160/1365 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc
+1160/1365 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: Feb 13 10:50 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 =   2.39 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/libbz2.so.bc" time elapsed: 00:00:02
+----------------------------------------------------------
+
+1161/1365 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc
+1161/1365 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: Feb 13 10:50 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 =   2.89 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/bunzip2.bc" time elapsed: 00:00:02
+----------------------------------------------------------
+
+1162/1365 Testing: diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc
+1162/1365 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: Feb 13 10:50 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 =   9.63 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-small/test_cases_bc/crux-bc/htop.bc" time elapsed: 00:00:09
+----------------------------------------------------------
+
+1163/1365 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc
+1163/1365 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: Feb 13 10:50 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 =  31.64 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" end time: Feb 13 10:50 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/libcurl.so.bc" time elapsed: 00:00:31
+----------------------------------------------------------
+
+1164/1365 Testing: diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc
+1164/1365 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: Feb 13 10:50 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 =  38.87 sec
+----------------------------------------------------------
+Test Passed.
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" end time: Feb 13 10:51 UTC
+"diff-perf-cruxbc-big/test_cases_bc/crux-bc/bash.bc" time elapsed: 00:00:38
+----------------------------------------------------------
+
+End testing: Feb 13 10:51 UTC