./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:52:14,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:52:14,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:52:14,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:52:14,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:52:14,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:52:14,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:52:14,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:52:14,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:52:14,352 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:52:14,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:52:14,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:52:14,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:52:14,354 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:52:14,354 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:52:14,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:52:14,354 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:52:14,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:52:14,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:52:14,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:52:14,355 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:52:14,355 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:52:14,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:52:14,356 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2025-02-06 12:52:14,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:52:14,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:52:14,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:52:14,570 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:52:14,570 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:52:14,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-02-06 12:52:15,678 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ca4209f93/327eacddd88e447a970b92e136eb0701/FLAG88785ed94 [2025-02-06 12:52:15,990 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:52:15,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-02-06 12:52:16,015 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ca4209f93/327eacddd88e447a970b92e136eb0701/FLAG88785ed94 [2025-02-06 12:52:16,025 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ca4209f93/327eacddd88e447a970b92e136eb0701 [2025-02-06 12:52:16,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:52:16,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:52:16,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:16,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:52:16,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:52:16,032 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:16" (1/1) ... [2025-02-06 12:52:16,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fc36cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:16, skipping insertion in model container [2025-02-06 12:52:16,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:16" (1/1) ... [2025-02-06 12:52:16,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:52:16,325 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:16,338 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:16,345 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:16,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:16,367 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 12:52:16,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@644ab06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:16, skipping insertion in model container [2025-02-06 12:52:16,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:16,368 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 12:52:16,369 INFO L158 Benchmark]: Toolchain (without parser) took 340.61ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 85.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:52:16,369 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:16,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.02ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 85.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 12:52:16,370 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.02ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 85.0MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3904]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-races/race-2_4-container_of.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:52:18,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:52:18,094 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 12:52:18,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:52:18,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:52:18,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:52:18,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:52:18,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:52:18,125 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:52:18,125 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:52:18,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:52:18,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:52:18,125 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:52:18,126 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:52:18,126 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:52:18,127 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 12:52:18,127 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 12:52:18,128 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:52:18,128 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:52:18,128 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:52:18,128 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:52:18,128 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:52:18,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:52:18,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:52:18,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:52:18,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:52:18,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:52:18,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:52:18,129 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 12:52:18,129 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 12:52:18,129 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:52:18,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:52:18,130 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:52:18,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:52:18,130 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2872c384167f2e3876e0fc6c6cdca366b47c7b8757c341fcf44d3890af023ea5 [2025-02-06 12:52:18,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:52:18,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:52:18,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:52:18,382 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:52:18,382 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:52:18,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-02-06 12:52:19,620 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/80c54fceb/aba770365d034905a64c0b04e61fd2e9/FLAG640601c19 [2025-02-06 12:52:19,881 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:52:19,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-races/race-2_4-container_of.i [2025-02-06 12:52:19,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/80c54fceb/aba770365d034905a64c0b04e61fd2e9/FLAG640601c19 [2025-02-06 12:52:20,179 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/80c54fceb/aba770365d034905a64c0b04e61fd2e9 [2025-02-06 12:52:20,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:52:20,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:52:20,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:20,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:52:20,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:52:20,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ce3bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20, skipping insertion in model container [2025-02-06 12:52:20,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:52:20,449 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:20,460 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:20,467 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:20,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:20,499 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 12:52:20,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:52:20,558 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:20,563 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:20,564 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 12:52:20,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:20,576 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:52:20,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:52:20,717 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:52:20,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20 WrapperNode [2025-02-06 12:52:20,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:52:20,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:52:20,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:52:20,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:52:20,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,769 INFO L138 Inliner]: procedures = 251, calls = 56, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 152 [2025-02-06 12:52:20,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:52:20,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:52:20,772 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:52:20,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:52:20,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,782 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,799 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 15, 2]. 79 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 10 writes are split as follows [0, 8, 2]. [2025-02-06 12:52:20,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,815 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:52:20,828 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:52:20,829 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:52:20,829 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:52:20,830 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (1/1) ... [2025-02-06 12:52:20,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:52:20,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:20,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 12:52:20,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 12:52:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 12:52:20,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2025-02-06 12:52:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 12:52:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 12:52:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 12:52:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:52:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 12:52:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 12:52:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 12:52:20,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:52:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:52:20,887 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 12:52:21,106 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:52:21,107 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:52:21,557 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 12:52:21,557 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:52:21,696 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:52:21,697 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:52:21,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:21 BoogieIcfgContainer [2025-02-06 12:52:21,697 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:52:21,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:52:21,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:52:21,702 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:52:21,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:52:20" (1/3) ... [2025-02-06 12:52:21,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ced9fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:52:21, skipping insertion in model container [2025-02-06 12:52:21,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:52:20" (2/3) ... [2025-02-06 12:52:21,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ced9fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:52:21, skipping insertion in model container [2025-02-06 12:52:21,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:21" (3/3) ... [2025-02-06 12:52:21,703 INFO L128 eAbstractionObserver]: Analyzing ICFG race-2_4-container_of.i [2025-02-06 12:52:21,717 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:52:21,718 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG race-2_4-container_of.i that has 2 procedures, 99 locations, 1 initial locations, 0 loop locations, and 41 error locations. [2025-02-06 12:52:21,719 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 12:52:21,767 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 12:52:21,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 124 transitions, 262 flow [2025-02-06 12:52:21,848 INFO L124 PetriNetUnfolderBase]: 14/171 cut-off events. [2025-02-06 12:52:21,850 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 12:52:21,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 171 events. 14/171 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 700 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 4 conditions per place. [2025-02-06 12:52:21,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 124 transitions, 262 flow [2025-02-06 12:52:21,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 122 transitions, 256 flow [2025-02-06 12:52:21,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:52:21,874 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@245ecb9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:52:21,874 INFO L334 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2025-02-06 12:52:21,878 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 12:52:21,879 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2025-02-06 12:52:21,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 12:52:21,879 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:21,879 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 12:52:21,880 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:21,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:21,898 INFO L85 PathProgramCache]: Analyzing trace with hash 555873, now seen corresponding path program 1 times [2025-02-06 12:52:21,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:21,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546881433] [2025-02-06 12:52:21,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:21,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:21,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:21,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:21,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 12:52:22,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:52:22,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:52:22,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:22,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:22,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 12:52:22,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:22,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:52:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:22,073 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:22,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546881433] [2025-02-06 12:52:22,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546881433] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:22,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:22,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:22,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134910691] [2025-02-06 12:52:22,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:22,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:22,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:22,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:22,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:22,159 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-02-06 12:52:22,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 122 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:22,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:22,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-02-06 12:52:22,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:23,916 INFO L124 PetriNetUnfolderBase]: 9323/18312 cut-off events. [2025-02-06 12:52:23,916 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-02-06 12:52:23,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32872 conditions, 18312 events. 9323/18312 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177782 event pairs, 559 based on Foata normal form. 792/11540 useless extension candidates. Maximal degree in co-relation 32603. Up to 13528 conditions per place. [2025-02-06 12:52:24,026 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 94 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2025-02-06 12:52:24,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 472 flow [2025-02-06 12:52:24,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:24,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:24,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2025-02-06 12:52:24,037 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6075268817204301 [2025-02-06 12:52:24,038 INFO L175 Difference]: Start difference. First operand has 118 places, 122 transitions, 256 flow. Second operand 3 states and 226 transitions. [2025-02-06 12:52:24,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 472 flow [2025-02-06 12:52:24,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 464 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:52:24,051 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2025-02-06 12:52:24,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2025-02-06 12:52:24,059 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -8 predicate places. [2025-02-06 12:52:24,059 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2025-02-06 12:52:24,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:24,059 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:24,060 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 12:52:24,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 12:52:24,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:24,260 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:24,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:24,261 INFO L85 PathProgramCache]: Analyzing trace with hash 555874, now seen corresponding path program 1 times [2025-02-06 12:52:24,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:24,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1471004851] [2025-02-06 12:52:24,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:24,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:24,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:24,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:24,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 12:52:24,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 12:52:24,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 12:52:24,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:24,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:24,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:52:24,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:24,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:52:24,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:24,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:24,379 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:24,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471004851] [2025-02-06 12:52:24,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471004851] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:24,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:24,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:24,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288379112] [2025-02-06 12:52:24,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:24,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:24,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:24,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:24,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:24,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 124 [2025-02-06 12:52:24,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:24,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:24,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 124 [2025-02-06 12:52:24,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:25,818 INFO L124 PetriNetUnfolderBase]: 9323/18310 cut-off events. [2025-02-06 12:52:25,818 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2025-02-06 12:52:25,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33036 conditions, 18310 events. 9323/18310 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 1065. Compared 177667 event pairs, 559 based on Foata normal form. 1/10747 useless extension candidates. Maximal degree in co-relation 1995. Up to 13528 conditions per place. [2025-02-06 12:52:25,889 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2025-02-06 12:52:25,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 132 transitions, 462 flow [2025-02-06 12:52:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2025-02-06 12:52:25,892 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5913978494623656 [2025-02-06 12:52:25,893 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 220 transitions. [2025-02-06 12:52:25,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 132 transitions, 462 flow [2025-02-06 12:52:25,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 132 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:25,896 INFO L231 Difference]: Finished difference. Result has 108 places, 106 transitions, 220 flow [2025-02-06 12:52:25,897 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=106} [2025-02-06 12:52:25,897 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-02-06 12:52:25,898 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 106 transitions, 220 flow [2025-02-06 12:52:25,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:25,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:25,898 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 12:52:25,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 12:52:26,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:26,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:26,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:26,103 INFO L85 PathProgramCache]: Analyzing trace with hash 17230621, now seen corresponding path program 1 times [2025-02-06 12:52:26,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:26,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256029230] [2025-02-06 12:52:26,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:26,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:26,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:26,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:26,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 12:52:26,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 12:52:26,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 12:52:26,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:26,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:26,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:52:26,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:26,200 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:26,200 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:26,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256029230] [2025-02-06 12:52:26,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256029230] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:26,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:26,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:26,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117590181] [2025-02-06 12:52:26,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:26,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:26,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:26,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:26,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:26,202 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 124 [2025-02-06 12:52:26,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 106 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:26,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:26,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 124 [2025-02-06 12:52:26,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:27,460 INFO L124 PetriNetUnfolderBase]: 9322/15614 cut-off events. [2025-02-06 12:52:27,460 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2025-02-06 12:52:27,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30340 conditions, 15614 events. 9322/15614 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 834. Compared 119425 event pairs, 8957 based on Foata normal form. 1/9011 useless extension candidates. Maximal degree in co-relation 16169. Up to 13949 conditions per place. [2025-02-06 12:52:27,516 INFO L140 encePairwiseOnDemand]: 121/124 looper letters, 93 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2025-02-06 12:52:27,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 131 transitions, 460 flow [2025-02-06 12:52:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 222 transitions. [2025-02-06 12:52:27,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2025-02-06 12:52:27,523 INFO L175 Difference]: Start difference. First operand has 108 places, 106 transitions, 220 flow. Second operand 3 states and 222 transitions. [2025-02-06 12:52:27,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 131 transitions, 460 flow [2025-02-06 12:52:27,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 131 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:27,525 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 218 flow [2025-02-06 12:52:27,525 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2025-02-06 12:52:27,526 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-02-06 12:52:27,526 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 218 flow [2025-02-06 12:52:27,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:27,526 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:27,526 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:27,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 12:52:27,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:27,727 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:27,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:27,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1773347947, now seen corresponding path program 1 times [2025-02-06 12:52:27,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:27,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [811264885] [2025-02-06 12:52:27,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:27,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:27,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:27,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:27,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 12:52:27,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 12:52:27,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 12:52:27,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:27,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:27,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:52:27,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:27,851 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:27,852 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:27,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811264885] [2025-02-06 12:52:27,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811264885] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:27,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:27,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:52:27,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733649778] [2025-02-06 12:52:27,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:27,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:52:27,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:27,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:52:27,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:52:27,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-02-06 12:52:27,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:27,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:27,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-02-06 12:52:27,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:28,790 INFO L124 PetriNetUnfolderBase]: 9321/16372 cut-off events. [2025-02-06 12:52:28,790 INFO L125 PetriNetUnfolderBase]: For 199/199 co-relation queries the response was YES. [2025-02-06 12:52:28,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31092 conditions, 16372 events. 9321/16372 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 857. Compared 132112 event pairs, 9321 based on Foata normal form. 1/9713 useless extension candidates. Maximal degree in co-relation 29764. Up to 14494 conditions per place. [2025-02-06 12:52:28,852 INFO L140 encePairwiseOnDemand]: 120/124 looper letters, 74 selfloop transitions, 3 changer transitions 1/114 dead transitions. [2025-02-06 12:52:28,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 114 transitions, 394 flow [2025-02-06 12:52:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:52:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:52:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-02-06 12:52:28,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5060483870967742 [2025-02-06 12:52:28,854 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 218 flow. Second operand 4 states and 251 transitions. [2025-02-06 12:52:28,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 114 transitions, 394 flow [2025-02-06 12:52:28,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 114 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:28,868 INFO L231 Difference]: Finished difference. Result has 111 places, 107 transitions, 235 flow [2025-02-06 12:52:28,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=111, PETRI_TRANSITIONS=107} [2025-02-06 12:52:28,869 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -7 predicate places. [2025-02-06 12:52:28,870 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 107 transitions, 235 flow [2025-02-06 12:52:28,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:28,870 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:28,870 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:28,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 12:52:29,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:29,071 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:29,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:29,071 INFO L85 PathProgramCache]: Analyzing trace with hash -860788835, now seen corresponding path program 1 times [2025-02-06 12:52:29,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:29,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771716532] [2025-02-06 12:52:29,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:29,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:29,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:29,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:29,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 12:52:29,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:52:29,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:52:29,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:29,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:29,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:52:29,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:29,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:29,180 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:29,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771716532] [2025-02-06 12:52:29,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771716532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:29,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:29,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:52:29,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398249696] [2025-02-06 12:52:29,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:29,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:52:29,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:29,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:52:29,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:52:29,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2025-02-06 12:52:29,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 107 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:29,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:29,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2025-02-06 12:52:29,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:30,340 INFO L124 PetriNetUnfolderBase]: 10049/18255 cut-off events. [2025-02-06 12:52:30,340 INFO L125 PetriNetUnfolderBase]: For 385/385 co-relation queries the response was YES. [2025-02-06 12:52:30,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34498 conditions, 18255 events. 10049/18255 cut-off events. For 385/385 co-relation queries the response was YES. Maximal size of possible extension queue 983. Compared 159859 event pairs, 559 based on Foata normal form. 0/11549 useless extension candidates. Maximal degree in co-relation 34451. Up to 13518 conditions per place. [2025-02-06 12:52:30,421 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 120 selfloop transitions, 7 changer transitions 0/154 dead transitions. [2025-02-06 12:52:30,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 154 transitions, 583 flow [2025-02-06 12:52:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:52:30,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:52:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2025-02-06 12:52:30,422 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5362903225806451 [2025-02-06 12:52:30,422 INFO L175 Difference]: Start difference. First operand has 111 places, 107 transitions, 235 flow. Second operand 4 states and 266 transitions. [2025-02-06 12:52:30,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 154 transitions, 583 flow [2025-02-06 12:52:30,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 154 transitions, 582 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:52:30,429 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 238 flow [2025-02-06 12:52:30,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2025-02-06 12:52:30,430 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-02-06 12:52:30,430 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 238 flow [2025-02-06 12:52:30,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:30,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:30,430 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:30,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 12:52:30,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:30,633 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:30,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:30,634 INFO L85 PathProgramCache]: Analyzing trace with hash -860788834, now seen corresponding path program 1 times [2025-02-06 12:52:30,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:30,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921189109] [2025-02-06 12:52:30,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:30,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:30,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:30,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:30,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 12:52:30,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 12:52:30,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 12:52:30,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:30,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:30,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:52:30,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:30,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:52:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:30,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:30,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:30,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921189109] [2025-02-06 12:52:30,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921189109] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:30,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:30,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:30,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908047576] [2025-02-06 12:52:30,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:30,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:30,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:30,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:30,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:30,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 124 [2025-02-06 12:52:30,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:30,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:30,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 124 [2025-02-06 12:52:30,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:31,952 INFO L124 PetriNetUnfolderBase]: 9321/15795 cut-off events. [2025-02-06 12:52:31,952 INFO L125 PetriNetUnfolderBase]: For 1322/1322 co-relation queries the response was YES. [2025-02-06 12:52:31,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31316 conditions, 15795 events. 9321/15795 cut-off events. For 1322/1322 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 124089 event pairs, 3107 based on Foata normal form. 394/9743 useless extension candidates. Maximal degree in co-relation 11421. Up to 9600 conditions per place. [2025-02-06 12:52:32,028 INFO L140 encePairwiseOnDemand]: 117/124 looper letters, 106 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2025-02-06 12:52:32,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 135 transitions, 528 flow [2025-02-06 12:52:32,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:32,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2025-02-06 12:52:32,029 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5994623655913979 [2025-02-06 12:52:32,029 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 238 flow. Second operand 3 states and 223 transitions. [2025-02-06 12:52:32,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 135 transitions, 528 flow [2025-02-06 12:52:32,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 135 transitions, 512 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:52:32,040 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 250 flow [2025-02-06 12:52:32,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2025-02-06 12:52:32,041 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -10 predicate places. [2025-02-06 12:52:32,041 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 250 flow [2025-02-06 12:52:32,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:32,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:32,041 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:32,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 12:52:32,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:32,241 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:32,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:32,242 INFO L85 PathProgramCache]: Analyzing trace with hash -802692251, now seen corresponding path program 1 times [2025-02-06 12:52:32,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:32,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507865239] [2025-02-06 12:52:32,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:32,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:32,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:32,246 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:32,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 12:52:32,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:52:32,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:52:32,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:32,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:32,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 12:52:32,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:32,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:52:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:32,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:32,421 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:32,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507865239] [2025-02-06 12:52:32,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507865239] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:32,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:32,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:52:32,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819945470] [2025-02-06 12:52:32,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:32,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:52:32,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:32,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:52:32,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:52:32,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-02-06 12:52:32,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:32,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:32,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-02-06 12:52:32,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:33,650 INFO L124 PetriNetUnfolderBase]: 8424/14907 cut-off events. [2025-02-06 12:52:33,650 INFO L125 PetriNetUnfolderBase]: For 778/778 co-relation queries the response was YES. [2025-02-06 12:52:33,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29155 conditions, 14907 events. 8424/14907 cut-off events. For 778/778 co-relation queries the response was YES. Maximal size of possible extension queue 814. Compared 121598 event pairs, 799 based on Foata normal form. 0/9205 useless extension candidates. Maximal degree in co-relation 9239. Up to 8439 conditions per place. [2025-02-06 12:52:33,707 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 154 selfloop transitions, 9 changer transitions 1/195 dead transitions. [2025-02-06 12:52:33,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 195 transitions, 775 flow [2025-02-06 12:52:33,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:52:33,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:52:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 470 transitions. [2025-02-06 12:52:33,709 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5414746543778802 [2025-02-06 12:52:33,709 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 250 flow. Second operand 7 states and 470 transitions. [2025-02-06 12:52:33,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 195 transitions, 775 flow [2025-02-06 12:52:33,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 195 transitions, 767 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-06 12:52:33,728 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 295 flow [2025-02-06 12:52:33,729 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=295, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2025-02-06 12:52:33,730 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2025-02-06 12:52:33,730 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 295 flow [2025-02-06 12:52:33,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:33,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:33,731 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:33,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 12:52:33,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:33,932 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:33,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:33,932 INFO L85 PathProgramCache]: Analyzing trace with hash -802692252, now seen corresponding path program 1 times [2025-02-06 12:52:33,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:33,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309984279] [2025-02-06 12:52:33,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:33,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:33,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:33,936 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:33,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 12:52:34,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 12:52:34,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 12:52:34,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:34,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:34,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 12:52:34,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:34,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:52:34,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:34,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:34,063 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:34,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309984279] [2025-02-06 12:52:34,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309984279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:34,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:34,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:52:34,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411142051] [2025-02-06 12:52:34,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:34,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:52:34,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:34,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:52:34,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:52:34,198 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-02-06 12:52:34,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 295 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:34,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:34,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-02-06 12:52:34,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:35,166 INFO L124 PetriNetUnfolderBase]: 6646/11793 cut-off events. [2025-02-06 12:52:35,166 INFO L125 PetriNetUnfolderBase]: For 3513/3513 co-relation queries the response was YES. [2025-02-06 12:52:35,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24917 conditions, 11793 events. 6646/11793 cut-off events. For 3513/3513 co-relation queries the response was YES. Maximal size of possible extension queue 599. Compared 91393 event pairs, 775 based on Foata normal form. 0/8527 useless extension candidates. Maximal degree in co-relation 7002. Up to 8172 conditions per place. [2025-02-06 12:52:35,211 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 175 selfloop transitions, 14 changer transitions 0/220 dead transitions. [2025-02-06 12:52:35,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 220 transitions, 907 flow [2025-02-06 12:52:35,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:52:35,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:52:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 539 transitions. [2025-02-06 12:52:35,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5433467741935484 [2025-02-06 12:52:35,213 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 295 flow. Second operand 8 states and 539 transitions. [2025-02-06 12:52:35,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 220 transitions, 907 flow [2025-02-06 12:52:35,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 220 transitions, 900 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-06 12:52:35,223 INFO L231 Difference]: Finished difference. Result has 126 places, 112 transitions, 379 flow [2025-02-06 12:52:35,223 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=379, PETRI_PLACES=126, PETRI_TRANSITIONS=112} [2025-02-06 12:52:35,223 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 8 predicate places. [2025-02-06 12:52:35,223 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 112 transitions, 379 flow [2025-02-06 12:52:35,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:35,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:35,224 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:35,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-06 12:52:35,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:35,424 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:35,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:35,425 INFO L85 PathProgramCache]: Analyzing trace with hash 704302375, now seen corresponding path program 1 times [2025-02-06 12:52:35,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:35,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762961159] [2025-02-06 12:52:35,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:35,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:35,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:35,427 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:35,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 12:52:35,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 12:52:35,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 12:52:35,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:35,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:35,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 12:52:35,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:35,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:52:35,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:35,554 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:35,554 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:35,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762961159] [2025-02-06 12:52:35,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762961159] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:35,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:35,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:52:35,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063055467] [2025-02-06 12:52:35,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:35,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:52:35,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:35,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:52:35,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:52:35,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-02-06 12:52:35,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 112 transitions, 379 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:35,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:35,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-02-06 12:52:35,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:36,773 INFO L124 PetriNetUnfolderBase]: 5575/9967 cut-off events. [2025-02-06 12:52:36,773 INFO L125 PetriNetUnfolderBase]: For 6993/6993 co-relation queries the response was YES. [2025-02-06 12:52:36,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23271 conditions, 9967 events. 5575/9967 cut-off events. For 6993/6993 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 74973 event pairs, 653 based on Foata normal form. 0/7770 useless extension candidates. Maximal degree in co-relation 21089. Up to 6421 conditions per place. [2025-02-06 12:52:36,801 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 174 selfloop transitions, 17 changer transitions 0/222 dead transitions. [2025-02-06 12:52:36,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 222 transitions, 1126 flow [2025-02-06 12:52:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:52:36,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 12:52:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 530 transitions. [2025-02-06 12:52:36,803 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5342741935483871 [2025-02-06 12:52:36,803 INFO L175 Difference]: Start difference. First operand has 126 places, 112 transitions, 379 flow. Second operand 8 states and 530 transitions. [2025-02-06 12:52:36,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 222 transitions, 1126 flow [2025-02-06 12:52:36,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 222 transitions, 1102 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:52:36,814 INFO L231 Difference]: Finished difference. Result has 133 places, 121 transitions, 491 flow [2025-02-06 12:52:36,814 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=491, PETRI_PLACES=133, PETRI_TRANSITIONS=121} [2025-02-06 12:52:36,814 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2025-02-06 12:52:36,814 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 121 transitions, 491 flow [2025-02-06 12:52:36,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:36,815 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:36,815 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:36,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 12:52:37,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:37,020 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:37,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:37,021 INFO L85 PathProgramCache]: Analyzing trace with hash 704302376, now seen corresponding path program 1 times [2025-02-06 12:52:37,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:37,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280343519] [2025-02-06 12:52:37,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:37,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:37,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:37,024 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:37,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 12:52:37,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 12:52:37,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 12:52:37,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:37,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:37,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 12:52:37,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:37,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:52:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:37,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:37,199 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:37,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280343519] [2025-02-06 12:52:37,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280343519] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:37,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:37,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:52:37,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177296135] [2025-02-06 12:52:37,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:37,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:52:37,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:37,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:52:37,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:52:37,365 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-02-06 12:52:37,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 121 transitions, 491 flow. Second operand has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:37,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:37,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-02-06 12:52:37,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:38,355 INFO L124 PetriNetUnfolderBase]: 4926/8678 cut-off events. [2025-02-06 12:52:38,355 INFO L125 PetriNetUnfolderBase]: For 8057/8059 co-relation queries the response was YES. [2025-02-06 12:52:38,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22078 conditions, 8678 events. 4926/8678 cut-off events. For 8057/8059 co-relation queries the response was YES. Maximal size of possible extension queue 401. Compared 62560 event pairs, 1266 based on Foata normal form. 378/7832 useless extension candidates. Maximal degree in co-relation 20184. Up to 5127 conditions per place. [2025-02-06 12:52:38,394 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 145 selfloop transitions, 14 changer transitions 1/191 dead transitions. [2025-02-06 12:52:38,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 191 transitions, 1053 flow [2025-02-06 12:52:38,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 12:52:38,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 12:52:38,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 448 transitions. [2025-02-06 12:52:38,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2025-02-06 12:52:38,396 INFO L175 Difference]: Start difference. First operand has 133 places, 121 transitions, 491 flow. Second operand 7 states and 448 transitions. [2025-02-06 12:52:38,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 191 transitions, 1053 flow [2025-02-06 12:52:38,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 191 transitions, 1050 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 12:52:38,409 INFO L231 Difference]: Finished difference. Result has 141 places, 124 transitions, 567 flow [2025-02-06 12:52:38,409 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=567, PETRI_PLACES=141, PETRI_TRANSITIONS=124} [2025-02-06 12:52:38,409 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 23 predicate places. [2025-02-06 12:52:38,409 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 124 transitions, 567 flow [2025-02-06 12:52:38,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.0) internal successors, (225), 5 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:38,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:38,410 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:38,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 12:52:38,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:38,610 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:38,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:38,611 INFO L85 PathProgramCache]: Analyzing trace with hash 702411385, now seen corresponding path program 1 times [2025-02-06 12:52:38,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:38,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [22004555] [2025-02-06 12:52:38,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:38,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:38,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:38,614 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:38,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 12:52:38,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 12:52:38,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 12:52:38,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:38,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:38,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:52:38,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:38,760 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2025-02-06 12:52:38,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2025-02-06 12:52:38,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:38,773 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:38,773 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:38,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22004555] [2025-02-06 12:52:38,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22004555] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:38,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:38,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:52:38,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673462386] [2025-02-06 12:52:38,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:38,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:52:38,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:38,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:52:38,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:52:38,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 124 [2025-02-06 12:52:38,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 124 transitions, 567 flow. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:38,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:38,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 124 [2025-02-06 12:52:38,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:39,666 INFO L124 PetriNetUnfolderBase]: 4270/7530 cut-off events. [2025-02-06 12:52:39,666 INFO L125 PetriNetUnfolderBase]: For 10289/10293 co-relation queries the response was YES. [2025-02-06 12:52:39,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20726 conditions, 7530 events. 4270/7530 cut-off events. For 10289/10293 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 52983 event pairs, 1170 based on Foata normal form. 4/6791 useless extension candidates. Maximal degree in co-relation 18814. Up to 3737 conditions per place. [2025-02-06 12:52:39,696 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 109 selfloop transitions, 18 changer transitions 0/154 dead transitions. [2025-02-06 12:52:39,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 154 transitions, 913 flow [2025-02-06 12:52:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:52:39,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 12:52:39,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 285 transitions. [2025-02-06 12:52:39,697 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4596774193548387 [2025-02-06 12:52:39,697 INFO L175 Difference]: Start difference. First operand has 141 places, 124 transitions, 567 flow. Second operand 5 states and 285 transitions. [2025-02-06 12:52:39,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 154 transitions, 913 flow [2025-02-06 12:52:39,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 154 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 12:52:39,708 INFO L231 Difference]: Finished difference. Result has 136 places, 120 transitions, 574 flow [2025-02-06 12:52:39,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=574, PETRI_PLACES=136, PETRI_TRANSITIONS=120} [2025-02-06 12:52:39,708 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 18 predicate places. [2025-02-06 12:52:39,708 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 120 transitions, 574 flow [2025-02-06 12:52:39,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:39,708 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:39,708 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:39,717 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 12:52:39,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:39,909 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:39,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:39,909 INFO L85 PathProgramCache]: Analyzing trace with hash 702411386, now seen corresponding path program 1 times [2025-02-06 12:52:39,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:39,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1081296725] [2025-02-06 12:52:39,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:39,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:39,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:39,911 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:39,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 12:52:39,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 12:52:40,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 12:52:40,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:40,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:40,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 12:52:40,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:40,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:52:40,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:52:40,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:40,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:52:40,118 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:52:40,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:52:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:40,128 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:40,128 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:40,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081296725] [2025-02-06 12:52:40,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081296725] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:40,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:40,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:52:40,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11114758] [2025-02-06 12:52:40,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:40,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:52:40,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:40,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:52:40,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:52:40,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 124 [2025-02-06 12:52:40,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 120 transitions, 574 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:40,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:40,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 124 [2025-02-06 12:52:40,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:40,868 INFO L124 PetriNetUnfolderBase]: 3166/5650 cut-off events. [2025-02-06 12:52:40,868 INFO L125 PetriNetUnfolderBase]: For 8983/8987 co-relation queries the response was YES. [2025-02-06 12:52:40,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16027 conditions, 5650 events. 3166/5650 cut-off events. For 8983/8987 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 37982 event pairs, 1578 based on Foata normal form. 2/5370 useless extension candidates. Maximal degree in co-relation 14264. Up to 2373 conditions per place. [2025-02-06 12:52:40,893 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 109 selfloop transitions, 11 changer transitions 0/144 dead transitions. [2025-02-06 12:52:40,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 144 transitions, 882 flow [2025-02-06 12:52:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:52:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:52:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2025-02-06 12:52:40,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4657258064516129 [2025-02-06 12:52:40,895 INFO L175 Difference]: Start difference. First operand has 136 places, 120 transitions, 574 flow. Second operand 4 states and 231 transitions. [2025-02-06 12:52:40,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 144 transitions, 882 flow [2025-02-06 12:52:40,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 144 transitions, 846 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 12:52:40,904 INFO L231 Difference]: Finished difference. Result has 131 places, 116 transitions, 552 flow [2025-02-06 12:52:40,904 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=552, PETRI_PLACES=131, PETRI_TRANSITIONS=116} [2025-02-06 12:52:40,905 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 13 predicate places. [2025-02-06 12:52:40,905 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 116 transitions, 552 flow [2025-02-06 12:52:40,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:40,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:40,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:40,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 12:52:41,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:41,105 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:41,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:41,106 INFO L85 PathProgramCache]: Analyzing trace with hash 707493122, now seen corresponding path program 1 times [2025-02-06 12:52:41,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:41,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164091593] [2025-02-06 12:52:41,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:41,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:41,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:41,108 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:41,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 12:52:41,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:52:41,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:52:41,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:41,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:41,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 12:52:41,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:41,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:41,221 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:41,221 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:41,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-02-06 12:52:41,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:41,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:41,256 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:41,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 12:52:41,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 83 [2025-02-06 12:52:41,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:41,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:41,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:41,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164091593] [2025-02-06 12:52:41,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164091593] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:41,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:41,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:52:41,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377705172] [2025-02-06 12:52:41,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:41,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:52:41,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:41,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:52:41,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:52:41,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-02-06 12:52:41,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 116 transitions, 552 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:41,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:41,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-02-06 12:52:41,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:42,667 INFO L124 PetriNetUnfolderBase]: 4590/7885 cut-off events. [2025-02-06 12:52:42,667 INFO L125 PetriNetUnfolderBase]: For 10544/10548 co-relation queries the response was YES. [2025-02-06 12:52:42,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22125 conditions, 7885 events. 4590/7885 cut-off events. For 10544/10548 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 54069 event pairs, 2233 based on Foata normal form. 2/7408 useless extension candidates. Maximal degree in co-relation 20213. Up to 5326 conditions per place. [2025-02-06 12:52:42,723 INFO L140 encePairwiseOnDemand]: 114/124 looper letters, 125 selfloop transitions, 13 changer transitions 0/166 dead transitions. [2025-02-06 12:52:42,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 166 transitions, 1030 flow [2025-02-06 12:52:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:52:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 12:52:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 275 transitions. [2025-02-06 12:52:42,726 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5544354838709677 [2025-02-06 12:52:42,726 INFO L175 Difference]: Start difference. First operand has 131 places, 116 transitions, 552 flow. Second operand 4 states and 275 transitions. [2025-02-06 12:52:42,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 166 transitions, 1030 flow [2025-02-06 12:52:42,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 166 transitions, 1006 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-06 12:52:42,738 INFO L231 Difference]: Finished difference. Result has 134 places, 128 transitions, 648 flow [2025-02-06 12:52:42,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=648, PETRI_PLACES=134, PETRI_TRANSITIONS=128} [2025-02-06 12:52:42,739 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 16 predicate places. [2025-02-06 12:52:42,739 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 128 transitions, 648 flow [2025-02-06 12:52:42,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:42,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:42,739 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:42,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 12:52:42,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:42,940 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:42,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:42,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1645126833, now seen corresponding path program 1 times [2025-02-06 12:52:42,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:42,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1714239350] [2025-02-06 12:52:42,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:42,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:42,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:42,942 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:42,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 12:52:43,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 12:52:43,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 12:52:43,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:43,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:43,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:52:43,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:43,057 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:43,057 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:43,057 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:43,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-02-06 12:52:43,087 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:43,088 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:43,088 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:43,094 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 12:52:43,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 93 [2025-02-06 12:52:43,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 12:52:43,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 161 treesize of output 65 [2025-02-06 12:52:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:43,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:43,197 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:43,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714239350] [2025-02-06 12:52:43,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714239350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:43,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:43,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:52:43,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217633730] [2025-02-06 12:52:43,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:43,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:52:43,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:43,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:52:43,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:52:43,428 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-02-06 12:52:43,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 128 transitions, 648 flow. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:43,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:43,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-02-06 12:52:43,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:45,644 INFO L124 PetriNetUnfolderBase]: 5212/9088 cut-off events. [2025-02-06 12:52:45,644 INFO L125 PetriNetUnfolderBase]: For 15767/15771 co-relation queries the response was YES. [2025-02-06 12:52:45,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28199 conditions, 9088 events. 5212/9088 cut-off events. For 15767/15771 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 65145 event pairs, 3222 based on Foata normal form. 244/9289 useless extension candidates. Maximal degree in co-relation 26239. Up to 7472 conditions per place. [2025-02-06 12:52:45,680 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 140 selfloop transitions, 27 changer transitions 0/195 dead transitions. [2025-02-06 12:52:45,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 195 transitions, 1314 flow [2025-02-06 12:52:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:52:45,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 12:52:45,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 371 transitions. [2025-02-06 12:52:45,681 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4986559139784946 [2025-02-06 12:52:45,681 INFO L175 Difference]: Start difference. First operand has 134 places, 128 transitions, 648 flow. Second operand 6 states and 371 transitions. [2025-02-06 12:52:45,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 195 transitions, 1314 flow [2025-02-06 12:52:45,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 195 transitions, 1314 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 12:52:45,694 INFO L231 Difference]: Finished difference. Result has 143 places, 155 transitions, 963 flow [2025-02-06 12:52:45,694 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=963, PETRI_PLACES=143, PETRI_TRANSITIONS=155} [2025-02-06 12:52:45,695 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2025-02-06 12:52:45,695 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 155 transitions, 963 flow [2025-02-06 12:52:45,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:45,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:45,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:45,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-02-06 12:52:45,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:45,895 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:45,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:45,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1254275648, now seen corresponding path program 1 times [2025-02-06 12:52:45,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:45,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200264481] [2025-02-06 12:52:45,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:45,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:45,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:45,898 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:45,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 12:52:45,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:52:46,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:52:46,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:46,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:46,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 12:52:46,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:46,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:52:46,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:52:46,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:46,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:52:46,117 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:52:46,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:52:46,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:46,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:46,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:46,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200264481] [2025-02-06 12:52:46,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200264481] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:46,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:46,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:52:46,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814543558] [2025-02-06 12:52:46,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:46,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:52:46,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:46,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:52:46,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:52:46,368 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-02-06 12:52:46,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 155 transitions, 963 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:46,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:46,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-02-06 12:52:46,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:47,505 INFO L124 PetriNetUnfolderBase]: 4583/8399 cut-off events. [2025-02-06 12:52:47,505 INFO L125 PetriNetUnfolderBase]: For 18072/18078 co-relation queries the response was YES. [2025-02-06 12:52:47,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27608 conditions, 8399 events. 4583/8399 cut-off events. For 18072/18078 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 62248 event pairs, 1045 based on Foata normal form. 436/8809 useless extension candidates. Maximal degree in co-relation 25010. Up to 4883 conditions per place. [2025-02-06 12:52:47,551 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 211 selfloop transitions, 25 changer transitions 0/268 dead transitions. [2025-02-06 12:52:47,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 268 transitions, 1996 flow [2025-02-06 12:52:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:52:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:52:47,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 555 transitions. [2025-02-06 12:52:47,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49731182795698925 [2025-02-06 12:52:47,553 INFO L175 Difference]: Start difference. First operand has 143 places, 155 transitions, 963 flow. Second operand 9 states and 555 transitions. [2025-02-06 12:52:47,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 268 transitions, 1996 flow [2025-02-06 12:52:47,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 268 transitions, 1935 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-02-06 12:52:47,602 INFO L231 Difference]: Finished difference. Result has 147 places, 153 transitions, 967 flow [2025-02-06 12:52:47,603 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=967, PETRI_PLACES=147, PETRI_TRANSITIONS=153} [2025-02-06 12:52:47,603 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 29 predicate places. [2025-02-06 12:52:47,603 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 153 transitions, 967 flow [2025-02-06 12:52:47,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:47,603 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:47,604 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:47,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-06 12:52:47,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:47,804 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:47,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:47,804 INFO L85 PathProgramCache]: Analyzing trace with hash -820903004, now seen corresponding path program 1 times [2025-02-06 12:52:47,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:47,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940462349] [2025-02-06 12:52:47,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:47,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:47,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:47,807 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:47,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 12:52:47,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:52:47,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:52:47,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:47,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:47,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 12:52:47,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:47,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2025-02-06 12:52:47,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 12:52:48,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:48,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2025-02-06 12:52:48,026 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:52:48,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2025-02-06 12:52:48,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:48,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:48,046 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:48,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940462349] [2025-02-06 12:52:48,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940462349] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:48,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:48,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 12:52:48,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522437835] [2025-02-06 12:52:48,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:48,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 12:52:48,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:48,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 12:52:48,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:52:48,263 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 124 [2025-02-06 12:52:48,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 153 transitions, 967 flow. Second operand has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:48,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:48,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 124 [2025-02-06 12:52:48,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:49,415 INFO L124 PetriNetUnfolderBase]: 4513/8408 cut-off events. [2025-02-06 12:52:49,415 INFO L125 PetriNetUnfolderBase]: For 19790/19794 co-relation queries the response was YES. [2025-02-06 12:52:49,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27519 conditions, 8408 events. 4513/8408 cut-off events. For 19790/19794 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 64114 event pairs, 1105 based on Foata normal form. 328/8716 useless extension candidates. Maximal degree in co-relation 24531. Up to 4069 conditions per place. [2025-02-06 12:52:49,464 INFO L140 encePairwiseOnDemand]: 112/124 looper letters, 215 selfloop transitions, 25 changer transitions 0/272 dead transitions. [2025-02-06 12:52:49,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 272 transitions, 2043 flow [2025-02-06 12:52:49,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 12:52:49,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 12:52:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 556 transitions. [2025-02-06 12:52:49,466 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4982078853046595 [2025-02-06 12:52:49,466 INFO L175 Difference]: Start difference. First operand has 147 places, 153 transitions, 967 flow. Second operand 9 states and 556 transitions. [2025-02-06 12:52:49,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 272 transitions, 2043 flow [2025-02-06 12:52:49,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 272 transitions, 1990 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-02-06 12:52:49,514 INFO L231 Difference]: Finished difference. Result has 145 places, 151 transitions, 973 flow [2025-02-06 12:52:49,514 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=973, PETRI_PLACES=145, PETRI_TRANSITIONS=151} [2025-02-06 12:52:49,515 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2025-02-06 12:52:49,515 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 151 transitions, 973 flow [2025-02-06 12:52:49,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.166666666666664) internal successors, (271), 6 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:49,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:49,515 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:49,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-06 12:52:49,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:49,716 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:49,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:49,716 INFO L85 PathProgramCache]: Analyzing trace with hash 457450828, now seen corresponding path program 1 times [2025-02-06 12:52:49,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:49,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312004709] [2025-02-06 12:52:49,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:49,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:49,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:49,718 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:49,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 12:52:49,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 12:52:49,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 12:52:49,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:49,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:52:49,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 12:52:49,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:52:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:49,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:49,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:52:49,831 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:49,831 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 12:52:49,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2025-02-06 12:52:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:52:49,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:52:49,861 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:52:49,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312004709] [2025-02-06 12:52:49,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312004709] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:52:49,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:52:49,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:52:49,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490599888] [2025-02-06 12:52:49,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:52:49,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:52:49,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:52:49,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:52:49,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:52:49,930 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 124 [2025-02-06 12:52:49,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 973 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:49,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 12:52:49,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 124 [2025-02-06 12:52:49,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 12:52:50,947 INFO L124 PetriNetUnfolderBase]: 4931/8884 cut-off events. [2025-02-06 12:52:50,947 INFO L125 PetriNetUnfolderBase]: For 21865/21867 co-relation queries the response was YES. [2025-02-06 12:52:50,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29946 conditions, 8884 events. 4931/8884 cut-off events. For 21865/21867 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 65976 event pairs, 2988 based on Foata normal form. 120/8959 useless extension candidates. Maximal degree in co-relation 26909. Up to 7144 conditions per place. [2025-02-06 12:52:50,999 INFO L140 encePairwiseOnDemand]: 116/124 looper letters, 131 selfloop transitions, 18 changer transitions 0/177 dead transitions. [2025-02-06 12:52:51,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 177 transitions, 1415 flow [2025-02-06 12:52:51,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:52:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 12:52:51,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2025-02-06 12:52:51,001 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5376344086021505 [2025-02-06 12:52:51,001 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 973 flow. Second operand 3 states and 200 transitions. [2025-02-06 12:52:51,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 177 transitions, 1415 flow [2025-02-06 12:52:51,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 177 transitions, 1376 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-06 12:52:51,051 INFO L231 Difference]: Finished difference. Result has 143 places, 162 transitions, 1123 flow [2025-02-06 12:52:51,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1123, PETRI_PLACES=143, PETRI_TRANSITIONS=162} [2025-02-06 12:52:51,051 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 25 predicate places. [2025-02-06 12:52:51,051 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 162 transitions, 1123 flow [2025-02-06 12:52:51,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 12:52:51,052 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 12:52:51,052 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:51,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-06 12:52:51,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:51,252 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2025-02-06 12:52:51,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:52:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash -709291966, now seen corresponding path program 1 times [2025-02-06 12:52:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:52:51,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499217308] [2025-02-06 12:52:51,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:52:51,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:51,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:52:51,255 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 12:52:51,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 12:52:51,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:52:53,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:52:53,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:53,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:52:53,095 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 12:52:53,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 12:52:55,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 12:52:55,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:52:55,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 12:52:55,199 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 12:52:55,199 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 12:52:55,200 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (54 of 55 remaining) [2025-02-06 12:52:55,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (51 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 55 remaining) [2025-02-06 12:52:55,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (34 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (29 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (24 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 55 remaining) [2025-02-06 12:52:55,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK (21 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK (20 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 55 remaining) [2025-02-06 12:52:55,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 55 remaining) [2025-02-06 12:52:55,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location my_callbackErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 55 remaining) [2025-02-06 12:52:55,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-02-06 12:52:55,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:52:55,407 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:52:55,429 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-06 12:52:55,429 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 12:52:55,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 12:52:55 BasicIcfg [2025-02-06 12:52:55,432 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 12:52:55,432 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 12:52:55,433 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 12:52:55,433 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 12:52:55,433 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:52:21" (3/4) ... [2025-02-06 12:52:55,434 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 12:52:55,435 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 12:52:55,435 INFO L158 Benchmark]: Toolchain (without parser) took 35253.68ms. Allocated memory was 100.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 72.3MB in the beginning and 1.1GB in the end (delta: -978.4MB). Peak memory consumption was 638.6MB. Max. memory is 16.1GB. [2025-02-06 12:52:55,436 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:55,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.24ms. Allocated memory is still 100.7MB. Free memory was 72.3MB in the beginning and 66.2MB in the end (delta: 6.1MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2025-02-06 12:52:55,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.68ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 63.8MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:52:55,436 INFO L158 Benchmark]: Boogie Preprocessor took 52.46ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 59.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:52:55,436 INFO L158 Benchmark]: IcfgBuilder took 868.60ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 55.2MB in the end (delta: 4.3MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2025-02-06 12:52:55,436 INFO L158 Benchmark]: TraceAbstraction took 33733.47ms. Allocated memory was 100.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 54.6MB in the beginning and 1.1GB in the end (delta: -996.0MB). Peak memory consumption was 610.1MB. Max. memory is 16.1GB. [2025-02-06 12:52:55,437 INFO L158 Benchmark]: Witness Printer took 2.40ms. Allocated memory is still 1.7GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 70.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 12:52:55,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.24ms. Allocated memory is still 100.7MB. Free memory was 72.3MB in the beginning and 66.2MB in the end (delta: 6.1MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.68ms. Allocated memory is still 100.7MB. Free memory was 66.2MB in the beginning and 63.8MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.46ms. Allocated memory is still 100.7MB. Free memory was 63.3MB in the beginning and 59.5MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 868.60ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 55.2MB in the end (delta: 4.3MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * TraceAbstraction took 33733.47ms. Allocated memory was 100.7MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 54.6MB in the beginning and 1.1GB in the end (delta: -996.0MB). Peak memory consumption was 610.1MB. Max. memory is 16.1GB. * Witness Printer took 2.40ms. Allocated memory is still 1.7GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 70.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3883. Possible FailurePath: [L3888] 0 pthread_t t1,t2; [L3962] CALL, EXPR 0 my_drv_init() [L3956] 0 return 0; [L3962] RET, EXPR 0 my_drv_init() [L3962] 0 int ret = my_drv_init(); [L3963] COND TRUE 0 ret==0 [L3964] 0 int probe_ret; [L3965] 0 struct my_data data; [L3966] CALL, EXPR 0 my_drv_probe(&data) [L3919] 0 struct device *d = &data->dev; [L3923] 0 data->shared.a = 0 VAL [t1=0, t2=0] [L3924] 0 data->shared.b = 0 [L3925] 0 int res = __VERIFIER_nondet_int(); [L3926] COND FALSE 0 !(\read(res)) [L3929] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={256:24}, \old(data)={256:0}, d={256:24}, data={256:0}, res=0, t1=524287, t2=0] [L3902] 1 struct device *dev = (struct device*)arg; [L3903] 1 struct my_data *data; [L3904] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L3904] 1 { const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );} [L3904] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - __builtin_offsetof (struct my_data, dev) );}) [L3930] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [\old(arg)={256:24}, \old(data)={256:0}, arg={256:24}, d={256:24}, data={256:0}, data={256:0}, dev={256:24}, res=0, t1=524287, t2=524288] [L3931] 0 return 0; VAL [\old(arg)={256:24}, \old(data)={256:0}, \result=0, arg={256:24}, d={256:24}, data={256:0}, data={256:0}, dev={256:24}, res=0, t1=524287, t2=524288] [L3966] RET, EXPR 0 my_drv_probe(&data) [L3966] 0 probe_ret = my_drv_probe(&data) [L3967] COND TRUE 0 probe_ret==0 [L3968] CALL 0 my_drv_disconnect(&data) [L3937] 0 void *status; VAL [\old(arg)={256:24}, \old(data)={256:0}, arg={256:24}, data={256:0}, data={256:0}, dev={256:24}, status={2049:0}, t1=524287, t2=524288] [L3940] 0 data->shared.a = 3 VAL [\old(arg)={256:24}, arg={256:24}, data={256:0}, dev={256:24}, t1=524287, t2=524288] [L3943] 0 data->shared.b = 3 VAL [\old(arg)={256:24}, arg={256:24}, data={256:0}, dev={256:24}, t1=524287, t2=524288] [L3907] 1 data->shared.a = 1 VAL [\old(arg)={256:24}, arg={256:24}, data={256:0}, dev={256:24}, t1=524287, t2=524288] [L3946] EXPR 0 data->shared.a [L3946] CALL 0 ldv_assert(data->shared.a==3) [L3887] COND TRUE 0 !expression [L3887] CALL 0 reach_error() [L3883] 0 (0) ? (void) (0) : __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) [L3883] 0 __assert_fail ("0", "../sv-benchmarks/c/ldv-races/race-2_4-container_of.c", 13, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={256:24}, arg={256:24}, data={256:0}, dev={256:24}, t1=524287, t2=524288] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3961]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3883]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 3929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 3930]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 131 locations, 55 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 33.6s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2499 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2052 mSDsluCounter, 115 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 98 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5317 IncrementalHoareTripleChecker+Invalid, 5415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 98 mSolverCounterUnsat, 80 mSDtfsCounter, 5317 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1123occurred in iteration=17, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 1410 SizeOfPredicates, 97 NumberOfNonLiveVariables, 1694 ConjunctsInSsa, 171 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-06 12:52:55,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample