./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.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/uthash-2.0.2/uthash_FNV_test5-3.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 a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:14:08,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:14:08,481 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 12:14:08,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:14:08,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:14:08,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:14:08,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:14:08,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:14:08,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:14:08,502 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:14:08,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:14:08,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:14:08,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:14:08,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:14:08,502 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:14:08,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:14:08,503 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:14:08,504 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:14:08,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:14:08,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:14:08,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 12:14:08,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 12:14:08,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:14:08,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:14:08,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:14:08,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:14:08,505 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 -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2025-02-06 12:14:08,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:14:08,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:14:08,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:14:08,748 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:14:08,748 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:14:08,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-06 12:14:09,887 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8e258741/2b3fd91e9691402a8945b720409337e4/FLAG0c6e74f6c [2025-02-06 12:14:10,170 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:14:10,172 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-06 12:14:10,184 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8e258741/2b3fd91e9691402a8945b720409337e4/FLAG0c6e74f6c [2025-02-06 12:14:10,453 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e8e258741/2b3fd91e9691402a8945b720409337e4 [2025-02-06 12:14:10,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:14:10,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:14:10,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:10,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:14:10,462 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:14:10,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:10" (1/1) ... [2025-02-06 12:14:10,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75295f72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:10, skipping insertion in model container [2025-02-06 12:14:10,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:10" (1/1) ... [2025-02-06 12:14:10,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:14:10,738 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 12:14:10,765 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 12:14:10,769 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 12:14:10,771 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 12:14:10,777 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 12:14:10,804 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 12:14:10,805 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 12:14:10,807 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 12:14:10,811 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 12:14:10,826 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 12:14:10,826 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 12:14:10,828 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 12:14:10,828 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 12:14:10,829 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 12:14:10,831 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 12:14:10,836 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 12:14:10,836 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 12:14:10,836 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 12:14:10,843 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 12:14:10,843 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 12:14:10,846 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 12:14:10,846 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 12:14:10,848 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 12:14:10,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:10,868 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 12:14:10,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f89f76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:10, skipping insertion in model container [2025-02-06 12:14:10,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:10,870 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 12:14:10,872 INFO L158 Benchmark]: Toolchain (without parser) took 414.25ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 87.3MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 12:14:10,873 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 12:14:10,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.30ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 87.3MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 12:14:10,876 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 201.3MB. Free memory is still 125.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.30ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 87.3MB in the end (delta: 22.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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/uthash-2.0.2/uthash_FNV_test5-3.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 a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 12:14:12,529 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 12:14:12,631 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-06 12:14:12,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 12:14:12,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 12:14:12,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 12:14:12,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 12:14:12,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 12:14:12,664 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 12:14:12,665 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 12:14:12,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 12:14:12,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 12:14:12,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 12:14:12,665 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 12:14:12,665 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 12:14:12,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 12:14:12,666 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 12:14:12,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:14:12,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 12:14:12,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 12:14:12,667 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 12:14:12,667 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 12:14:12,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 12:14:12,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 12:14:12,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 12:14:12,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 12:14:12,667 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 -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2025-02-06 12:14:12,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 12:14:12,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 12:14:12,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 12:14:12,925 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 12:14:12,926 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 12:14:12,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-06 12:14:14,086 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af9e81956/fd02b5a1200c45f198f59cdb76cf575b/FLAG6f26226c7 [2025-02-06 12:14:14,390 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 12:14:14,390 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2025-02-06 12:14:14,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af9e81956/fd02b5a1200c45f198f59cdb76cf575b/FLAG6f26226c7 [2025-02-06 12:14:14,660 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af9e81956/fd02b5a1200c45f198f59cdb76cf575b [2025-02-06 12:14:14,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 12:14:14,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 12:14:14,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:14,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 12:14:14,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 12:14:14,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:14" (1/1) ... [2025-02-06 12:14:14,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4130564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:14, skipping insertion in model container [2025-02-06 12:14:14,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 12:14:14" (1/1) ... [2025-02-06 12:14:14,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:14:14,943 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 12:14:14,969 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 12:14:14,974 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 12:14:14,978 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 12:14:14,982 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 12:14:15,012 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 12:14:15,015 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 12:14:15,017 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 12:14:15,022 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 12:14:15,043 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 12:14:15,044 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 12:14:15,046 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 12:14:15,046 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 12:14:15,047 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 12:14:15,049 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 12:14:15,052 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 12:14:15,053 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 12:14:15,053 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 12:14:15,056 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 12:14:15,057 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 12:14:15,057 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 12:14:15,058 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 12:14:15,063 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 12:14:15,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:15,087 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 12:14:15,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 12:14:15,116 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 12:14:15,125 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 12:14:15,126 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 12:14:15,127 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 12:14:15,131 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 12:14:15,163 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 12:14:15,166 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 12:14:15,167 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 12:14:15,171 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 12:14:15,182 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 12:14:15,183 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 12:14:15,184 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 12:14:15,184 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 12:14:15,185 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 12:14:15,186 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 12:14:15,187 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 12:14:15,187 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 12:14:15,187 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 12:14:15,190 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 12:14:15,190 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 12:14:15,190 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 12:14:15,192 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 12:14:15,195 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 12:14:15,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:15,205 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 12:14:15,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 12:14:15,322 INFO L204 MainTranslator]: Completed translation [2025-02-06 12:14:15,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15 WrapperNode [2025-02-06 12:14:15,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 12:14:15,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 12:14:15,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 12:14:15,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 12:14:15,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,406 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2025-02-06 12:14:15,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 12:14:15,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 12:14:15,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 12:14:15,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 12:14:15,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,430 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,550 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2025-02-06 12:14:15,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,591 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,603 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 12:14:15,627 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 12:14:15,627 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 12:14:15,627 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 12:14:15,628 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (1/1) ... [2025-02-06 12:14:15,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 12:14:15,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:15,656 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 12:14:15,659 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 12:14:15,681 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 12:14:15,681 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 12:14:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 12:14:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 12:14:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 12:14:15,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 12:14:15,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 12:14:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 12:14:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 12:14:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 12:14:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 12:14:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 12:14:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 12:14:15,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 12:14:15,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 12:14:15,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 12:14:15,885 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 12:14:15,887 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 12:14:20,167 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2025-02-06 12:14:20,279 INFO L? ?]: Removed 1905 outVars from TransFormulas that were not future-live. [2025-02-06 12:14:20,279 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 12:14:20,329 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 12:14:20,333 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 12:14:20,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:14:20 BoogieIcfgContainer [2025-02-06 12:14:20,333 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 12:14:20,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 12:14:20,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 12:14:20,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 12:14:20,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 12:14:14" (1/3) ... [2025-02-06 12:14:20,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5841c3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:14:20, skipping insertion in model container [2025-02-06 12:14:20,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 12:14:15" (2/3) ... [2025-02-06 12:14:20,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5841c3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 12:14:20, skipping insertion in model container [2025-02-06 12:14:20,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 12:14:20" (3/3) ... [2025-02-06 12:14:20,341 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-3.i [2025-02-06 12:14:20,351 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 12:14:20,353 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test5-3.i that has 6 procedures, 1847 locations, 1 initial locations, 58 loop locations, and 915 error locations. [2025-02-06 12:14:20,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 12:14:20,418 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;@e1266b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 12:14:20,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 915 error locations. [2025-02-06 12:14:20,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 1837 states, 911 states have (on average 2.2096597145993413) internal successors, (2013), 1827 states have internal predecessors, (2013), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 12:14:20,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 12:14:20,427 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:20,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 12:14:20,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:20,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1979196728, now seen corresponding path program 1 times [2025-02-06 12:14:20,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:20,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953849378] [2025-02-06 12:14:20,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:20,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:20,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:20,443 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 12:14:20,444 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 12:14:20,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 12:14:20,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 12:14:20,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:20,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:20,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 12:14:20,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:20,619 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 12:14:20,620 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:20,621 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:20,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953849378] [2025-02-06 12:14:20,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953849378] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:20,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:20,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:14:20,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818933242] [2025-02-06 12:14:20,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:20,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 12:14:20,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:20,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 12:14:20,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 12:14:20,648 INFO L87 Difference]: Start difference. First operand has 1837 states, 911 states have (on average 2.2096597145993413) internal successors, (2013), 1827 states have internal predecessors, (2013), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 12:14:20,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:20,723 INFO L93 Difference]: Finished difference Result 1817 states and 1918 transitions. [2025-02-06 12:14:20,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 12:14:20,725 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) Word has length 5 [2025-02-06 12:14:20,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:20,750 INFO L225 Difference]: With dead ends: 1817 [2025-02-06 12:14:20,751 INFO L226 Difference]: Without dead ends: 1815 [2025-02-06 12:14:20,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 12:14:20,754 INFO L435 NwaCegarLoop]: 1918 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1918 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:20,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:14:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2025-02-06 12:14:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2025-02-06 12:14:20,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 901 states have (on average 2.099889012208657) internal successors, (1892), 1805 states have internal predecessors, (1892), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 12:14:20,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 1916 transitions. [2025-02-06 12:14:20,855 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 1916 transitions. Word has length 5 [2025-02-06 12:14:20,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:20,855 INFO L471 AbstractCegarLoop]: Abstraction has 1815 states and 1916 transitions. [2025-02-06 12:14:20,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 12:14:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 1916 transitions. [2025-02-06 12:14:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 12:14:20,856 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:20,856 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 12:14:20,864 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 12:14:21,056 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 12:14:21,057 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:21,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1979196759, now seen corresponding path program 1 times [2025-02-06 12:14:21,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:21,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870391791] [2025-02-06 12:14:21,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:21,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:21,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:21,061 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 12:14:21,062 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 12:14:21,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 12:14:21,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 12:14:21,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:21,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:21,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:21,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:21,226 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 12:14:21,243 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 12:14:21,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:21,243 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:21,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870391791] [2025-02-06 12:14:21,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870391791] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:21,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:21,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:14:21,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510911169] [2025-02-06 12:14:21,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:21,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:14:21,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:21,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:14:21,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:21,247 INFO L87 Difference]: Start difference. First operand 1815 states and 1916 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:23,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:23,340 INFO L93 Difference]: Finished difference Result 1952 states and 2085 transitions. [2025-02-06 12:14:23,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:14:23,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2025-02-06 12:14:23,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:23,345 INFO L225 Difference]: With dead ends: 1952 [2025-02-06 12:14:23,346 INFO L226 Difference]: Without dead ends: 1952 [2025-02-06 12:14:23,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:23,346 INFO L435 NwaCegarLoop]: 1382 mSDtfsCounter, 1273 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1763 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:23,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1763 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-02-06 12:14:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2025-02-06 12:14:23,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1723. [2025-02-06 12:14:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 901 states have (on average 1.997780244173141) internal successors, (1800), 1713 states have internal predecessors, (1800), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 12:14:23,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 1824 transitions. [2025-02-06 12:14:23,388 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 1824 transitions. Word has length 5 [2025-02-06 12:14:23,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:23,388 INFO L471 AbstractCegarLoop]: Abstraction has 1723 states and 1824 transitions. [2025-02-06 12:14:23,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:23,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 1824 transitions. [2025-02-06 12:14:23,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 12:14:23,389 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:23,389 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 12:14:23,396 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 12:14:23,593 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 12:14:23,593 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr913REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:23,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:23,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1979196760, now seen corresponding path program 1 times [2025-02-06 12:14:23,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:23,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [640435594] [2025-02-06 12:14:23,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:23,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:23,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:23,596 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 12:14:23,597 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 12:14:23,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 12:14:23,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 12:14:23,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:23,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:23,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:14:23,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:23,716 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 12:14:23,730 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 12:14:23,730 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:23,730 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:23,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [640435594] [2025-02-06 12:14:23,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [640435594] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:23,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:23,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:14:23,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084178011] [2025-02-06 12:14:23,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:23,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:14:23,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:23,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:14:23,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:23,731 INFO L87 Difference]: Start difference. First operand 1723 states and 1824 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:26,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:26,396 INFO L93 Difference]: Finished difference Result 2275 states and 2427 transitions. [2025-02-06 12:14:26,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:14:26,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2025-02-06 12:14:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:26,402 INFO L225 Difference]: With dead ends: 2275 [2025-02-06 12:14:26,403 INFO L226 Difference]: Without dead ends: 2275 [2025-02-06 12:14:26,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:26,403 INFO L435 NwaCegarLoop]: 1744 mSDtfsCounter, 775 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:26,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 2564 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-06 12:14:26,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2025-02-06 12:14:26,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 1895. [2025-02-06 12:14:26,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1895 states, 1083 states have (on average 1.9621421975992612) internal successors, (2125), 1885 states have internal predecessors, (2125), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-02-06 12:14:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1895 states to 1895 states and 2149 transitions. [2025-02-06 12:14:26,432 INFO L78 Accepts]: Start accepts. Automaton has 1895 states and 2149 transitions. Word has length 5 [2025-02-06 12:14:26,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:26,432 INFO L471 AbstractCegarLoop]: Abstraction has 1895 states and 2149 transitions. [2025-02-06 12:14:26,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:26,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1895 states and 2149 transitions. [2025-02-06 12:14:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 12:14:26,432 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:26,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 12:14:26,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 12:14:26,633 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 12:14:26,633 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr292REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:26,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:26,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1977895930, now seen corresponding path program 1 times [2025-02-06 12:14:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:26,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376673337] [2025-02-06 12:14:26,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:26,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:26,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:26,636 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 12:14:26,637 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 12:14:26,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 12:14:26,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 12:14:26,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:26,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:26,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:26,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:26,747 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 12:14:26,754 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 12:14:26,755 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:26,755 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:26,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376673337] [2025-02-06 12:14:26,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376673337] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:26,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:26,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 12:14:26,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626486010] [2025-02-06 12:14:26,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:26,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:14:26,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:26,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:14:26,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:26,756 INFO L87 Difference]: Start difference. First operand 1895 states and 2149 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:29,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:29,109 INFO L93 Difference]: Finished difference Result 3396 states and 3872 transitions. [2025-02-06 12:14:29,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:14:29,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2025-02-06 12:14:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:29,117 INFO L225 Difference]: With dead ends: 3396 [2025-02-06 12:14:29,117 INFO L226 Difference]: Without dead ends: 3396 [2025-02-06 12:14:29,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:29,119 INFO L435 NwaCegarLoop]: 1269 mSDtfsCounter, 1602 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1613 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:29,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1613 Valid, 2100 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-06 12:14:29,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2025-02-06 12:14:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 2433. [2025-02-06 12:14:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2433 states, 1622 states have (on average 1.9254007398273736) internal successors, (3123), 2419 states have internal predecessors, (3123), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:29,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3155 transitions. [2025-02-06 12:14:29,159 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3155 transitions. Word has length 5 [2025-02-06 12:14:29,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:29,159 INFO L471 AbstractCegarLoop]: Abstraction has 2433 states and 3155 transitions. [2025-02-06 12:14:29,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:29,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3155 transitions. [2025-02-06 12:14:29,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 12:14:29,159 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:29,159 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 12:14:29,166 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 12:14:29,360 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 12:14:29,360 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr293REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:29,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:29,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1977895931, now seen corresponding path program 1 times [2025-02-06 12:14:29,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:29,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181219354] [2025-02-06 12:14:29,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:29,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:29,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:29,363 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 12:14:29,364 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 12:14:29,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 12:14:29,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 12:14:29,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:29,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:29,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 12:14:29,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:29,478 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 12:14:29,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:29,478 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:29,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181219354] [2025-02-06 12:14:29,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181219354] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:29,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:29,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:29,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018419745] [2025-02-06 12:14:29,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:29,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:14:29,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:29,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:14:29,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:29,479 INFO L87 Difference]: Start difference. First operand 2433 states and 3155 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:29,553 INFO L93 Difference]: Finished difference Result 4109 states and 5225 transitions. [2025-02-06 12:14:29,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:14:29,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2025-02-06 12:14:29,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:29,570 INFO L225 Difference]: With dead ends: 4109 [2025-02-06 12:14:29,571 INFO L226 Difference]: Without dead ends: 4109 [2025-02-06 12:14:29,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:29,571 INFO L435 NwaCegarLoop]: 2244 mSDtfsCounter, 1367 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 4046 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:29,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1378 Valid, 4046 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:14:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4109 states. [2025-02-06 12:14:29,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4109 to 2435. [2025-02-06 12:14:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 1624 states have (on average 1.9236453201970443) internal successors, (3124), 2421 states have internal predecessors, (3124), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:29,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 3156 transitions. [2025-02-06 12:14:29,634 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 3156 transitions. Word has length 5 [2025-02-06 12:14:29,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:29,634 INFO L471 AbstractCegarLoop]: Abstraction has 2435 states and 3156 transitions. [2025-02-06 12:14:29,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 12:14:29,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 3156 transitions. [2025-02-06 12:14:29,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 12:14:29,634 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:29,634 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:29,642 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 12:14:29,834 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 12:14:29,835 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr908REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:29,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash 710246320, now seen corresponding path program 1 times [2025-02-06 12:14:29,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:29,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626692531] [2025-02-06 12:14:29,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:29,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:29,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:29,838 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 12:14:29,838 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 12:14:29,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 12:14:29,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 12:14:29,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:29,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:29,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:29,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:29,976 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 12:14:29,977 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:29,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:29,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626692531] [2025-02-06 12:14:29,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626692531] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:29,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:29,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:29,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823942772] [2025-02-06 12:14:29,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:29,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:29,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:29,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:29,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:29,980 INFO L87 Difference]: Start difference. First operand 2435 states and 3156 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 12:14:32,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:32,122 INFO L93 Difference]: Finished difference Result 2420 states and 3118 transitions. [2025-02-06 12:14:32,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:32,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2025-02-06 12:14:32,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:32,128 INFO L225 Difference]: With dead ends: 2420 [2025-02-06 12:14:32,128 INFO L226 Difference]: Without dead ends: 2420 [2025-02-06 12:14:32,128 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:32,129 INFO L435 NwaCegarLoop]: 1101 mSDtfsCounter, 1323 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:32,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 2133 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-02-06 12:14:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2420 states. [2025-02-06 12:14:32,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2420 to 2412. [2025-02-06 12:14:32,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2412 states, 1624 states have (on average 1.895320197044335) internal successors, (3078), 2398 states have internal predecessors, (3078), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2412 states to 2412 states and 3110 transitions. [2025-02-06 12:14:32,157 INFO L78 Accepts]: Start accepts. Automaton has 2412 states and 3110 transitions. Word has length 11 [2025-02-06 12:14:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:32,157 INFO L471 AbstractCegarLoop]: Abstraction has 2412 states and 3110 transitions. [2025-02-06 12:14:32,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 12:14:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2412 states and 3110 transitions. [2025-02-06 12:14:32,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 12:14:32,158 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:32,158 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:32,165 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 12:14:32,362 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 12:14:32,362 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr909REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:32,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:32,362 INFO L85 PathProgramCache]: Analyzing trace with hash 710246321, now seen corresponding path program 1 times [2025-02-06 12:14:32,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:32,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971968974] [2025-02-06 12:14:32,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:32,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:32,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:32,364 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 12:14:32,366 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 12:14:32,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 12:14:32,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 12:14:32,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:32,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:32,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 12:14:32,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:32,497 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 12:14:32,560 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 12:14:32,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:32,560 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:32,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971968974] [2025-02-06 12:14:32,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971968974] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:32,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:32,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:32,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893960264] [2025-02-06 12:14:32,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:32,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:32,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:32,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:32,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:32,561 INFO L87 Difference]: Start difference. First operand 2412 states and 3110 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 12:14:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:35,696 INFO L93 Difference]: Finished difference Result 2934 states and 3556 transitions. [2025-02-06 12:14:35,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:35,696 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2025-02-06 12:14:35,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:35,702 INFO L225 Difference]: With dead ends: 2934 [2025-02-06 12:14:35,702 INFO L226 Difference]: Without dead ends: 2934 [2025-02-06 12:14:35,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:35,703 INFO L435 NwaCegarLoop]: 1463 mSDtfsCounter, 897 mSDsluCounter, 1712 mSDsCounter, 0 mSdLazyCounter, 2041 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 2063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:35,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 3175 Invalid, 2063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2041 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-02-06 12:14:35,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2025-02-06 12:14:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2526. [2025-02-06 12:14:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 1738 states have (on average 1.8504027617951668) internal successors, (3216), 2512 states have internal predecessors, (3216), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 3248 transitions. [2025-02-06 12:14:35,739 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 3248 transitions. Word has length 11 [2025-02-06 12:14:35,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:35,739 INFO L471 AbstractCegarLoop]: Abstraction has 2526 states and 3248 transitions. [2025-02-06 12:14:35,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 12:14:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 3248 transitions. [2025-02-06 12:14:35,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-06 12:14:35,740 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:35,740 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:35,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 12:14:35,941 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 12:14:35,941 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr909REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:35,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:35,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1656768959, now seen corresponding path program 1 times [2025-02-06 12:14:35,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:35,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1010070003] [2025-02-06 12:14:35,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:35,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:35,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:35,943 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 12:14:35,944 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 12:14:36,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 12:14:36,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 12:14:36,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:36,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:36,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:14:36,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:36,111 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 12:14:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:36,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:14:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:14:36,565 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:36,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010070003] [2025-02-06 12:14:36,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010070003] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:14:36,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:14:36,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-02-06 12:14:36,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782102199] [2025-02-06 12:14:36,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:14:36,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:14:36,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:36,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:14:36,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:14:36,566 INFO L87 Difference]: Start difference. First operand 2526 states and 3248 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 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 12:14:44,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:44,265 INFO L93 Difference]: Finished difference Result 3342 states and 4126 transitions. [2025-02-06 12:14:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:14:44,266 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 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) Word has length 30 [2025-02-06 12:14:44,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:44,272 INFO L225 Difference]: With dead ends: 3342 [2025-02-06 12:14:44,273 INFO L226 Difference]: Without dead ends: 3342 [2025-02-06 12:14:44,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2025-02-06 12:14:44,274 INFO L435 NwaCegarLoop]: 1464 mSDtfsCounter, 2632 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2639 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 3112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:44,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2639 Valid, 4178 Invalid, 3112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3079 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2025-02-06 12:14:44,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3342 states. [2025-02-06 12:14:44,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3342 to 2690. [2025-02-06 12:14:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 1902 states have (on average 1.8128286014721346) internal successors, (3448), 2676 states have internal predecessors, (3448), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:44,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3480 transitions. [2025-02-06 12:14:44,304 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3480 transitions. Word has length 30 [2025-02-06 12:14:44,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:44,305 INFO L471 AbstractCegarLoop]: Abstraction has 2690 states and 3480 transitions. [2025-02-06 12:14:44,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 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 12:14:44,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3480 transitions. [2025-02-06 12:14:44,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-02-06 12:14:44,306 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:44,306 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:44,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 12:14:44,506 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 12:14:44,506 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr856REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:44,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:44,507 INFO L85 PathProgramCache]: Analyzing trace with hash -121293992, now seen corresponding path program 1 times [2025-02-06 12:14:44,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:44,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193821711] [2025-02-06 12:14:44,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:44,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:44,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:44,509 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 12:14:44,510 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 12:14:44,625 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 12:14:44,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 12:14:44,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:44,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:44,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:44,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:44,818 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 12:14:44,819 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:44,819 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:44,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193821711] [2025-02-06 12:14:44,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193821711] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:44,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:44,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 12:14:44,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836280722] [2025-02-06 12:14:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:44,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 12:14:44,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:44,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 12:14:44,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:44,819 INFO L87 Difference]: Start difference. First operand 2690 states and 3480 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 12:14:44,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:44,965 INFO L93 Difference]: Finished difference Result 3286 states and 4171 transitions. [2025-02-06 12:14:44,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 12:14:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) Word has length 43 [2025-02-06 12:14:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:44,973 INFO L225 Difference]: With dead ends: 3286 [2025-02-06 12:14:44,973 INFO L226 Difference]: Without dead ends: 3286 [2025-02-06 12:14:44,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 12:14:44,974 INFO L435 NwaCegarLoop]: 1862 mSDtfsCounter, 445 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:44,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 3585 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:14:44,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3286 states. [2025-02-06 12:14:44,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3286 to 2908. [2025-02-06 12:14:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2120 states have (on average 1.7674528301886792) internal successors, (3747), 2894 states have internal predecessors, (3747), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 3779 transitions. [2025-02-06 12:14:45,004 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 3779 transitions. Word has length 43 [2025-02-06 12:14:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:45,005 INFO L471 AbstractCegarLoop]: Abstraction has 2908 states and 3779 transitions. [2025-02-06 12:14:45,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 12:14:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 3779 transitions. [2025-02-06 12:14:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-06 12:14:45,007 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:45,008 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:45,020 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 12:14:45,208 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 12:14:45,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr827REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:45,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:45,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1402356100, now seen corresponding path program 1 times [2025-02-06 12:14:45,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:45,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226881796] [2025-02-06 12:14:45,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:45,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:45,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:45,211 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 12:14:45,212 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 12:14:45,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 12:14:45,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 12:14:45,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:45,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:45,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:45,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:45,415 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 12:14:45,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:45,415 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226881796] [2025-02-06 12:14:45,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226881796] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:45,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:45,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:45,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432005232] [2025-02-06 12:14:45,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:45,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:45,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:45,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:45,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:45,417 INFO L87 Difference]: Start difference. First operand 2908 states and 3779 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 12:14:45,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:45,473 INFO L93 Difference]: Finished difference Result 2453 states and 3125 transitions. [2025-02-06 12:14:45,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:14:45,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) Word has length 46 [2025-02-06 12:14:45,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:45,482 INFO L225 Difference]: With dead ends: 2453 [2025-02-06 12:14:45,482 INFO L226 Difference]: Without dead ends: 2453 [2025-02-06 12:14:45,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:45,483 INFO L435 NwaCegarLoop]: 1729 mSDtfsCounter, 56 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 5114 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:45,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 5114 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:14:45,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2453 states. [2025-02-06 12:14:45,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2453 to 2450. [2025-02-06 12:14:45,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 1685 states have (on average 1.8338278931750742) internal successors, (3090), 2436 states have internal predecessors, (3090), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3122 transitions. [2025-02-06 12:14:45,509 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3122 transitions. Word has length 46 [2025-02-06 12:14:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:45,509 INFO L471 AbstractCegarLoop]: Abstraction has 2450 states and 3122 transitions. [2025-02-06 12:14:45,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 12:14:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3122 transitions. [2025-02-06 12:14:45,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-02-06 12:14:45,510 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:45,510 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:45,519 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 12:14:45,710 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 12:14:45,711 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr827REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:45,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:45,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1809683012, now seen corresponding path program 1 times [2025-02-06 12:14:45,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:45,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029559201] [2025-02-06 12:14:45,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:45,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:45,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:45,714 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 12:14:45,715 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 12:14:45,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-06 12:14:45,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-06 12:14:45,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:45,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:45,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:14:45,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:45,916 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 12:14:46,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-02-06 12:14:46,211 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 12:14:46,225 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:14:46,225 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 12:14:46,228 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 12:14:46,228 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:46,228 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029559201] [2025-02-06 12:14:46,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029559201] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:46,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:46,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:46,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838969289] [2025-02-06 12:14:46,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:46,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:14:46,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:46,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:14:46,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:46,230 INFO L87 Difference]: Start difference. First operand 2450 states and 3122 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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 12:14:48,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:48,836 INFO L93 Difference]: Finished difference Result 2366 states and 3002 transitions. [2025-02-06 12:14:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 12:14:48,836 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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) Word has length 54 [2025-02-06 12:14:48,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:48,840 INFO L225 Difference]: With dead ends: 2366 [2025-02-06 12:14:48,840 INFO L226 Difference]: Without dead ends: 2366 [2025-02-06 12:14:48,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:14:48,841 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 2348 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 2156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:48,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 1660 Invalid, 2156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2048 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-02-06 12:14:48,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2025-02-06 12:14:48,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2006. [2025-02-06 12:14:48,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2006 states, 1325 states have (on average 1.7388679245283019) internal successors, (2304), 1992 states have internal predecessors, (2304), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:48,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2336 transitions. [2025-02-06 12:14:48,858 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2336 transitions. Word has length 54 [2025-02-06 12:14:48,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:48,859 INFO L471 AbstractCegarLoop]: Abstraction has 2006 states and 2336 transitions. [2025-02-06 12:14:48,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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 12:14:48,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2336 transitions. [2025-02-06 12:14:48,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-02-06 12:14:48,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:48,860 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:48,869 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 12:14:49,060 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 12:14:49,060 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr820REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:49,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1915509019, now seen corresponding path program 1 times [2025-02-06 12:14:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:49,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984300530] [2025-02-06 12:14:49,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:49,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:49,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:49,063 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 12:14:49,063 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 12:14:49,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 12:14:49,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 12:14:49,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:49,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:49,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 12:14:49,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:49,260 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 12:14:49,270 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 19 treesize of output 1 [2025-02-06 12:14:49,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 12:14:49,289 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 12:14:49,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:49,289 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:49,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984300530] [2025-02-06 12:14:49,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984300530] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:49,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:49,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:49,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177510163] [2025-02-06 12:14:49,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:49,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:14:49,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:49,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:14:49,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:49,290 INFO L87 Difference]: Start difference. First operand 2006 states and 2336 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 12:14:51,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:51,640 INFO L93 Difference]: Finished difference Result 2005 states and 2334 transitions. [2025-02-06 12:14:51,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:14:51,641 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) Word has length 59 [2025-02-06 12:14:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:51,645 INFO L225 Difference]: With dead ends: 2005 [2025-02-06 12:14:51,645 INFO L226 Difference]: Without dead ends: 2005 [2025-02-06 12:14:51,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:14:51,645 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 2 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4287 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:51,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4287 Invalid, 2341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-06 12:14:51,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2005 states. [2025-02-06 12:14:51,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2005 to 2005. [2025-02-06 12:14:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2005 states, 1325 states have (on average 1.7373584905660377) internal successors, (2302), 1991 states have internal predecessors, (2302), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2005 states to 2005 states and 2334 transitions. [2025-02-06 12:14:51,665 INFO L78 Accepts]: Start accepts. Automaton has 2005 states and 2334 transitions. Word has length 59 [2025-02-06 12:14:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:51,665 INFO L471 AbstractCegarLoop]: Abstraction has 2005 states and 2334 transitions. [2025-02-06 12:14:51,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 12:14:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2005 states and 2334 transitions. [2025-02-06 12:14:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-02-06 12:14:51,666 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:51,666 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:51,679 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 12:14:51,866 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 12:14:51,867 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr821REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:51,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:51,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1915509020, now seen corresponding path program 1 times [2025-02-06 12:14:51,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:51,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2134541752] [2025-02-06 12:14:51,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:51,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:51,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:51,869 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 12:14:51,870 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 12:14:51,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 12:14:52,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 12:14:52,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:52,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:52,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 12:14:52,064 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:52,072 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 12:14:52,088 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 13 treesize of output 9 [2025-02-06 12:14:52,094 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 19 treesize of output 1 [2025-02-06 12:14:52,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2025-02-06 12:14:52,144 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 12:14:52,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:52,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:52,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134541752] [2025-02-06 12:14:52,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134541752] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:52,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:52,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:52,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519752551] [2025-02-06 12:14:52,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:52,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 12:14:52,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:52,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 12:14:52,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 12:14:52,145 INFO L87 Difference]: Start difference. First operand 2005 states and 2334 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 12:14:55,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:55,146 INFO L93 Difference]: Finished difference Result 2004 states and 2332 transitions. [2025-02-06 12:14:55,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 12:14:55,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) Word has length 59 [2025-02-06 12:14:55,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:55,149 INFO L225 Difference]: With dead ends: 2004 [2025-02-06 12:14:55,149 INFO L226 Difference]: Without dead ends: 2004 [2025-02-06 12:14:55,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 12:14:55,150 INFO L435 NwaCegarLoop]: 1655 mSDtfsCounter, 1 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4333 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:55,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4333 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-02-06 12:14:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2025-02-06 12:14:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 2004. [2025-02-06 12:14:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1323 states have (on average 1.7384731670445956) internal successors, (2300), 1990 states have internal predecessors, (2300), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 12:14:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 2332 transitions. [2025-02-06 12:14:55,169 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 2332 transitions. Word has length 59 [2025-02-06 12:14:55,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:55,169 INFO L471 AbstractCegarLoop]: Abstraction has 2004 states and 2332 transitions. [2025-02-06 12:14:55,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 12:14:55,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 2332 transitions. [2025-02-06 12:14:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-06 12:14:55,170 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:55,170 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:55,182 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 12:14:55,372 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 12:14:55,373 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:55,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:55,373 INFO L85 PathProgramCache]: Analyzing trace with hash 550378456, now seen corresponding path program 1 times [2025-02-06 12:14:55,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:55,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [890529140] [2025-02-06 12:14:55,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:55,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:55,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:55,376 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 12:14:55,377 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 12:14:55,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-06 12:14:55,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-06 12:14:55,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:55,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:55,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 12:14:55,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:55,577 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 19 treesize of output 1 [2025-02-06 12:14:55,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-02-06 12:14:55,637 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 12:14:55,637 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:55,637 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890529140] [2025-02-06 12:14:55,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890529140] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:55,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 12:14:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816924811] [2025-02-06 12:14:55,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:55,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 12:14:55,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:55,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 12:14:55,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 12:14:55,638 INFO L87 Difference]: Start difference. First operand 2004 states and 2332 transitions. Second operand has 7 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 12:14:59,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:59,145 INFO L93 Difference]: Finished difference Result 2022 states and 2363 transitions. [2025-02-06 12:14:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 12:14:59,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2025-02-06 12:14:59,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:59,148 INFO L225 Difference]: With dead ends: 2022 [2025-02-06 12:14:59,148 INFO L226 Difference]: Without dead ends: 2022 [2025-02-06 12:14:59,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-06 12:14:59,149 INFO L435 NwaCegarLoop]: 1637 mSDtfsCounter, 13 mSDsluCounter, 5236 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6873 SdHoareTripleChecker+Invalid, 3064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:59,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6873 Invalid, 3064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3051 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-02-06 12:14:59,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2025-02-06 12:14:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 2013. [2025-02-06 12:14:59,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2013 states, 1331 states have (on average 1.7362885048835461) internal successors, (2311), 1997 states have internal predecessors, (2311), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (25), 13 states have call predecessors, (25), 15 states have call successors, (25) [2025-02-06 12:14:59,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2013 states to 2013 states and 2353 transitions. [2025-02-06 12:14:59,166 INFO L78 Accepts]: Start accepts. Automaton has 2013 states and 2353 transitions. Word has length 67 [2025-02-06 12:14:59,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:59,166 INFO L471 AbstractCegarLoop]: Abstraction has 2013 states and 2353 transitions. [2025-02-06 12:14:59,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 12:14:59,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2013 states and 2353 transitions. [2025-02-06 12:14:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-06 12:14:59,166 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:59,166 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:59,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 12:14:59,366 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 12:14:59,367 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:59,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:59,367 INFO L85 PathProgramCache]: Analyzing trace with hash 550378457, now seen corresponding path program 1 times [2025-02-06 12:14:59,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:59,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762688664] [2025-02-06 12:14:59,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:59,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:59,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:59,369 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 12:14:59,370 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 12:14:59,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-06 12:14:59,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-06 12:14:59,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:14:59,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:14:59,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 12:14:59,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:14:59,578 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 12:14:59,578 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 12:14:59,578 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:14:59,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762688664] [2025-02-06 12:14:59,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762688664] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 12:14:59,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 12:14:59,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 12:14:59,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019396015] [2025-02-06 12:14:59,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 12:14:59,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 12:14:59,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:14:59,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 12:14:59,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:59,579 INFO L87 Difference]: Start difference. First operand 2013 states and 2353 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 12:14:59,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:14:59,623 INFO L93 Difference]: Finished difference Result 2007 states and 2337 transitions. [2025-02-06 12:14:59,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 12:14:59,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2025-02-06 12:14:59,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:14:59,629 INFO L225 Difference]: With dead ends: 2007 [2025-02-06 12:14:59,629 INFO L226 Difference]: Without dead ends: 2007 [2025-02-06 12:14:59,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 12:14:59,630 INFO L435 NwaCegarLoop]: 1654 mSDtfsCounter, 0 mSDsluCounter, 3300 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4954 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 12:14:59,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4954 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 12:14:59,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2025-02-06 12:14:59,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 2007. [2025-02-06 12:14:59,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1325 states have (on average 1.73811320754717) internal successors, (2303), 1993 states have internal predecessors, (2303), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-02-06 12:14:59,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2337 transitions. [2025-02-06 12:14:59,653 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2337 transitions. Word has length 67 [2025-02-06 12:14:59,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:14:59,653 INFO L471 AbstractCegarLoop]: Abstraction has 2007 states and 2337 transitions. [2025-02-06 12:14:59,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 12:14:59,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2337 transitions. [2025-02-06 12:14:59,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-06 12:14:59,654 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:14:59,654 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:14:59,665 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 12:14:59,858 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 12:14:59,858 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:14:59,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:14:59,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1304148453, now seen corresponding path program 1 times [2025-02-06 12:14:59,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:14:59,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429698686] [2025-02-06 12:14:59,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:14:59,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:14:59,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:14:59,861 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 12:14:59,862 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 12:15:00,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-06 12:15:00,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-06 12:15:00,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:00,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:00,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 12:15:00,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:00,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:00,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:15:00,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:00,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:00,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429698686] [2025-02-06 12:15:00,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429698686] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:15:00,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:15:00,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 12:15:00,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670250525] [2025-02-06 12:15:00,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:15:00,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 12:15:00,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:00,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 12:15:00,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 12:15:00,145 INFO L87 Difference]: Start difference. First operand 2007 states and 2337 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:15:00,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:00,262 INFO L93 Difference]: Finished difference Result 2019 states and 2355 transitions. [2025-02-06 12:15:00,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 12:15:00,263 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2025-02-06 12:15:00,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:00,266 INFO L225 Difference]: With dead ends: 2019 [2025-02-06 12:15:00,267 INFO L226 Difference]: Without dead ends: 2019 [2025-02-06 12:15:00,267 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 12:15:00,268 INFO L435 NwaCegarLoop]: 1653 mSDtfsCounter, 8 mSDsluCounter, 6591 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8244 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:00,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8244 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 12:15:00,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2025-02-06 12:15:00,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2017. [2025-02-06 12:15:00,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1334 states have (on average 1.737631184407796) internal successors, (2318), 2002 states have internal predecessors, (2318), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-02-06 12:15:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2352 transitions. [2025-02-06 12:15:00,291 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2352 transitions. Word has length 68 [2025-02-06 12:15:00,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:00,291 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2352 transitions. [2025-02-06 12:15:00,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:15:00,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2352 transitions. [2025-02-06 12:15:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-02-06 12:15:00,292 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:00,292 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:00,303 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 12:15:00,492 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 12:15:00,492 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:15:00,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:00,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1102334184, now seen corresponding path program 2 times [2025-02-06 12:15:00,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:00,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359816628] [2025-02-06 12:15:00,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:15:00,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:00,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:00,495 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 12:15:00,496 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 12:15:00,640 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-02-06 12:15:13,691 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 12:15:13,691 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:15:13,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:13,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 12:15:13,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:13,792 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2025-02-06 12:15:13,792 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 12:15:13,804 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 19 treesize of output 1 [2025-02-06 12:15:13,922 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-02-06 12:15:13,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2025-02-06 12:15:13,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2025-02-06 12:15:13,958 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 12:15:13,958 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:15:14,035 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2025-02-06 12:15:14,035 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 25 treesize of output 24 [2025-02-06 12:15:14,046 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_955 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem32#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_955) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2025-02-06 12:15:14,055 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:14,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359816628] [2025-02-06 12:15:14,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359816628] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 12:15:14,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1577749618] [2025-02-06 12:15:14,056 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:15:14,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 12:15:14,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 12:15:14,058 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 12:15:14,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2025-02-06 12:15:14,258 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 71 statements into 2 equivalence classes. [2025-02-06 12:15:15,025 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 71 of 71 statements. [2025-02-06 12:15:15,025 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 12:15:15,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:15,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 12:15:15,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:15,162 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:15,162 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:15:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:15,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1577749618] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:15:15,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 12:15:15,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2025-02-06 12:15:15,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787151837] [2025-02-06 12:15:15,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 12:15:15,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 12:15:15,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:15,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 12:15:15,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2025-02-06 12:15:15,371 INFO L87 Difference]: Start difference. First operand 2017 states and 2352 transitions. Second operand has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 12:15:25,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:25,248 INFO L93 Difference]: Finished difference Result 2033 states and 2374 transitions. [2025-02-06 12:15:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-02-06 12:15:25,248 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2025-02-06 12:15:25,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:25,250 INFO L225 Difference]: With dead ends: 2033 [2025-02-06 12:15:25,250 INFO L226 Difference]: Without dead ends: 2027 [2025-02-06 12:15:25,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=392, Invalid=2161, Unknown=1, NotChecked=98, Total=2652 [2025-02-06 12:15:25,252 INFO L435 NwaCegarLoop]: 1072 mSDtfsCounter, 1229 mSDsluCounter, 14165 mSDsCounter, 0 mSdLazyCounter, 10294 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 15237 SdHoareTripleChecker+Invalid, 10331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 10294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:25,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 15237 Invalid, 10331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 10294 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2025-02-06 12:15:25,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2025-02-06 12:15:25,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2025. [2025-02-06 12:15:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2025 states, 1343 states have (on average 1.7326880119136263) internal successors, (2327), 2010 states have internal predecessors, (2327), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-02-06 12:15:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2361 transitions. [2025-02-06 12:15:25,269 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2361 transitions. Word has length 71 [2025-02-06 12:15:25,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:25,270 INFO L471 AbstractCegarLoop]: Abstraction has 2025 states and 2361 transitions. [2025-02-06 12:15:25,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 12:15:25,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2361 transitions. [2025-02-06 12:15:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-02-06 12:15:25,270 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:25,270 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:25,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2025-02-06 12:15:25,494 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 12:15:25,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:25,671 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:15:25,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1580323833, now seen corresponding path program 1 times [2025-02-06 12:15:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:25,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038750457] [2025-02-06 12:15:25,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 12:15:25,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:25,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:25,674 INFO L229 MonitoredProcess]: Starting monitored process 20 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 12:15:25,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-06 12:15:25,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-02-06 12:15:25,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-02-06 12:15:25,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 12:15:25,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 12:15:25,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-02-06 12:15:25,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 12:15:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:25,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 12:15:26,371 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 12:15:26,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 12:15:26,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038750457] [2025-02-06 12:15:26,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038750457] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 12:15:26,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 12:15:26,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2025-02-06 12:15:26,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093458138] [2025-02-06 12:15:26,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 12:15:26,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-06 12:15:26,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 12:15:26,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-06 12:15:26,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2025-02-06 12:15:26,372 INFO L87 Difference]: Start difference. First operand 2025 states and 2361 transitions. Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:15:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 12:15:27,455 INFO L93 Difference]: Finished difference Result 2049 states and 2400 transitions. [2025-02-06 12:15:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-06 12:15:27,456 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 77 [2025-02-06 12:15:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 12:15:27,459 INFO L225 Difference]: With dead ends: 2049 [2025-02-06 12:15:27,459 INFO L226 Difference]: Without dead ends: 2043 [2025-02-06 12:15:27,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2025-02-06 12:15:27,460 INFO L435 NwaCegarLoop]: 1653 mSDtfsCounter, 16 mSDsluCounter, 18138 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 19791 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 12:15:27,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 19791 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 12:15:27,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2025-02-06 12:15:27,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 2043. [2025-02-06 12:15:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1361 states have (on average 1.7266715650257163) internal successors, (2350), 2028 states have internal predecessors, (2350), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2025-02-06 12:15:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2384 transitions. [2025-02-06 12:15:27,476 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2384 transitions. Word has length 77 [2025-02-06 12:15:27,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 12:15:27,477 INFO L471 AbstractCegarLoop]: Abstraction has 2043 states and 2384 transitions. [2025-02-06 12:15:27,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 12:15:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2384 transitions. [2025-02-06 12:15:27,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-02-06 12:15:27,477 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 12:15:27,477 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 12:15:27,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-06 12:15:27,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:27,678 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr817REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2025-02-06 12:15:27,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 12:15:27,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1875416505, now seen corresponding path program 2 times [2025-02-06 12:15:27,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 12:15:27,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530207475] [2025-02-06 12:15:27,679 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 12:15:27,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 12:15:27,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 12:15:27,681 INFO L229 MonitoredProcess]: Starting monitored process 21 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 12:15:27,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-06 12:15:27,874 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes.