./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d 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_JEN_test1-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:57:52,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:57:52,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 05:57:52,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:57:52,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:57:52,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:57:52,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:57:52,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:57:52,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 05:57:52,956 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 05:57:52,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:57:52,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:57:52,957 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:57:52,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:57:52,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:57:52,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:57:52,959 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:57:52,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:57:52,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:57:52,959 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-memcleanup) ) 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 -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2025-02-08 05:57:53,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:57:53,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:57:53,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:57:53,241 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:57:53,241 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:57:53,242 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2025-02-08 05:57:54,406 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6199866c9/59b2645df5204f928e8833669341d71f/FLAGb108c56c7 [2025-02-08 05:57:54,806 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:57:54,809 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2025-02-08 05:57:54,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6199866c9/59b2645df5204f928e8833669341d71f/FLAGb108c56c7 [2025-02-08 05:57:54,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6199866c9/59b2645df5204f928e8833669341d71f [2025-02-08 05:57:54,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:57:54,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:57:54,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:54,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:57:54,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:57:54,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:54" (1/1) ... [2025-02-08 05:57:54,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762996bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:54, skipping insertion in model container [2025-02-08 05:57:54,858 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:54" (1/1) ... [2025-02-08 05:57:54,888 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:57:55,123 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,142 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,144 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,146 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,150 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,158 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,158 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,160 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,161 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,162 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,162 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,165 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:55,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:55,176 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) [2025-02-08 05:57:55,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@25a87879 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:55, skipping insertion in model container [2025-02-08 05:57:55,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:55,176 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 05:57:55,178 INFO L158 Benchmark]: Toolchain (without parser) took 333.29ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 140.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:57:55,178 INFO L158 Benchmark]: CDTParser took 1.55ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:57:55,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.46ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 140.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:57:55,179 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.46ms. Allocated memory is still 201.3MB. Free memory was 157.8MB in the beginning and 140.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: 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_JEN_test1-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:57:57,027 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:57:57,116 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 05:57:57,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:57:57,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:57:57,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:57:57,150 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:57:57,150 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:57:57,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 05:57:57,150 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 05:57:57,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:57:57,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:57:57,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:57:57,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:57:57,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:57:57,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:57:57,153 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:57:57,153 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:57:57,153 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:57:57,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:57:57,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 05:57:57,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:57:57,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:57:57,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:57:57,154 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:57:57,154 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:57:57,154 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:57:57,154 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:57:57,154 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:57:57,154 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:57:57,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:57:57,154 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-memcleanup) ) 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 -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2025-02-08 05:57:57,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:57:57,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:57:57,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:57:57,466 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:57:57,467 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:57:57,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2025-02-08 05:57:58,701 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac49ac62f/8142be11afe54d11821cbb23ad3e5fa4/FLAG6c7fba6dd [2025-02-08 05:57:58,936 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:57:58,936 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2025-02-08 05:57:58,947 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac49ac62f/8142be11afe54d11821cbb23ad3e5fa4/FLAG6c7fba6dd [2025-02-08 05:57:59,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac49ac62f/8142be11afe54d11821cbb23ad3e5fa4 [2025-02-08 05:57:59,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:57:59,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:57:59,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:59,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:57:59,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:57:59,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:57:59,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59, skipping insertion in model container [2025-02-08 05:57:59,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:57:59,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:57:59,603 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,624 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,627 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,629 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,634 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,650 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,651 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,653 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,658 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,659 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,660 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,664 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:59,678 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 05:57:59,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:57:59,712 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,730 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,732 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,733 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,736 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,741 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,742 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,743 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,744 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,744 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,745 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,746 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 05:57:59,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:59,750 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:57:59,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:57:59,865 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:57:59,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59 WrapperNode [2025-02-08 05:57:59,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:57:59,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:57:59,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:57:59,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:57:59,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:57:59,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:57:59,944 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 759 [2025-02-08 05:57:59,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:57:59,949 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:57:59,949 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:57:59,949 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:57:59,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:57:59,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:57:59,971 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,025 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2025-02-08 05:58:00,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,080 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:58:00,090 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:58:00,090 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:58:00,090 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:58:00,090 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (1/1) ... [2025-02-08 05:58:00,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:58:00,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:00,131 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) [2025-02-08 05:58:00,137 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 [2025-02-08 05:58:00,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 05:58:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 05:58:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 05:58:00,156 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:58:00,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 05:58:00,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:58:00,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:58:00,304 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:58:00,306 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:58:06,645 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2025-02-08 05:58:06,645 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:58:06,655 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:58:06,655 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:58:06,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:58:06 BoogieIcfgContainer [2025-02-08 05:58:06,656 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:58:06,657 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:58:06,657 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:58:06,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:58:06,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:57:59" (1/3) ... [2025-02-08 05:58:06,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c8aac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:58:06, skipping insertion in model container [2025-02-08 05:58:06,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:57:59" (2/3) ... [2025-02-08 05:58:06,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c8aac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:58:06, skipping insertion in model container [2025-02-08 05:58:06,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:58:06" (3/3) ... [2025-02-08 05:58:06,664 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-2.i [2025-02-08 05:58:06,673 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:58:06,675 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_test1-2.i that has 4 procedures, 159 locations, 1 initial locations, 25 loop locations, and 2 error locations. [2025-02-08 05:58:06,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:58:06,736 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;@540b0a1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:58:06,738 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 05:58:06,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 136 states have (on average 1.661764705882353) internal successors, (226), 148 states have internal predecessors, (226), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-08 05:58:06,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 05:58:06,746 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:06,747 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:06,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:06,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:06,752 INFO L85 PathProgramCache]: Analyzing trace with hash -983602649, now seen corresponding path program 1 times [2025-02-08 05:58:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:06,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785950090] [2025-02-08 05:58:06,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:06,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:06,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:06,767 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) [2025-02-08 05:58:06,779 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 [2025-02-08 05:58:06,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 05:58:06,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 05:58:06,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:06,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:06,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:58:06,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:58:06,957 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:06,957 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:06,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785950090] [2025-02-08 05:58:06,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785950090] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:06,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:06,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 05:58:06,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717931780] [2025-02-08 05:58:06,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:06,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:58:06,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:06,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:58:06,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:58:06,977 INFO L87 Difference]: Start difference. First operand has 155 states, 136 states have (on average 1.661764705882353) internal successors, (226), 148 states have internal predecessors, (226), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-02-08 05:58:07,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:07,724 INFO L93 Difference]: Finished difference Result 245 states and 344 transitions. [2025-02-08 05:58:07,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:58:07,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-02-08 05:58:07,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:07,737 INFO L225 Difference]: With dead ends: 245 [2025-02-08 05:58:07,737 INFO L226 Difference]: Without dead ends: 239 [2025-02-08 05:58:07,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:58:07,740 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 108 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:07,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 386 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 05:58:07,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2025-02-08 05:58:07,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 200. [2025-02-08 05:58:07,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 184 states have (on average 1.3858695652173914) internal successors, (255), 194 states have internal predecessors, (255), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:58:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 271 transitions. [2025-02-08 05:58:07,802 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 271 transitions. Word has length 7 [2025-02-08 05:58:07,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:07,802 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 271 transitions. [2025-02-08 05:58:07,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-02-08 05:58:07,802 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 271 transitions. [2025-02-08 05:58:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 05:58:07,802 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:07,803 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:07,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:58:08,003 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 [2025-02-08 05:58:08,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:08,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:08,005 INFO L85 PathProgramCache]: Analyzing trace with hash -983572858, now seen corresponding path program 1 times [2025-02-08 05:58:08,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:08,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1010408255] [2025-02-08 05:58:08,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:08,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:08,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:08,007 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) [2025-02-08 05:58:08,014 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 [2025-02-08 05:58:08,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 05:58:08,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 05:58:08,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:08,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:08,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 05:58:08,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:58:08,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:08,133 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:08,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010408255] [2025-02-08 05:58:08,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010408255] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:08,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:08,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 05:58:08,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764428878] [2025-02-08 05:58:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:08,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:58:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:08,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:58:08,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:58:08,135 INFO L87 Difference]: Start difference. First operand 200 states and 271 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-02-08 05:58:12,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:58:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:12,435 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2025-02-08 05:58:12,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:58:12,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-02-08 05:58:12,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:12,445 INFO L225 Difference]: With dead ends: 237 [2025-02-08 05:58:12,446 INFO L226 Difference]: Without dead ends: 236 [2025-02-08 05:58:12,446 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:58:12,447 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 52 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:12,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 373 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2025-02-08 05:58:12,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2025-02-08 05:58:12,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 202. [2025-02-08 05:58:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 186 states have (on average 1.381720430107527) internal successors, (257), 196 states have internal predecessors, (257), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:58:12,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 273 transitions. [2025-02-08 05:58:12,459 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 273 transitions. Word has length 7 [2025-02-08 05:58:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:12,460 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 273 transitions. [2025-02-08 05:58:12,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2025-02-08 05:58:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 273 transitions. [2025-02-08 05:58:12,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-08 05:58:12,460 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:12,460 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:12,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 05:58:12,665 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 [2025-02-08 05:58:12,665 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:12,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:12,669 INFO L85 PathProgramCache]: Analyzing trace with hash -100548365, now seen corresponding path program 1 times [2025-02-08 05:58:12,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:12,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672033547] [2025-02-08 05:58:12,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:12,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:12,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:12,671 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) [2025-02-08 05:58:12,673 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 [2025-02-08 05:58:12,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 05:58:12,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 05:58:12,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:12,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:12,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 05:58:12,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:58:12,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:12,843 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:12,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672033547] [2025-02-08 05:58:12,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672033547] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:12,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:12,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:58:12,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733694321] [2025-02-08 05:58:12,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:12,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:58:12,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:12,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:58:12,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:12,845 INFO L87 Difference]: Start difference. First operand 202 states and 273 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:58:17,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:58:19,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:19,232 INFO L93 Difference]: Finished difference Result 221 states and 289 transitions. [2025-02-08 05:58:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:58:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-08 05:58:19,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:19,235 INFO L225 Difference]: With dead ends: 221 [2025-02-08 05:58:19,235 INFO L226 Difference]: Without dead ends: 217 [2025-02-08 05:58:19,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:58:19,237 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 92 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:19,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 569 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2025-02-08 05:58:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2025-02-08 05:58:19,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 188. [2025-02-08 05:58:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 172 states have (on average 1.3430232558139534) internal successors, (231), 182 states have internal predecessors, (231), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:58:19,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 247 transitions. [2025-02-08 05:58:19,252 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 247 transitions. Word has length 9 [2025-02-08 05:58:19,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:19,256 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 247 transitions. [2025-02-08 05:58:19,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:58:19,256 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 247 transitions. [2025-02-08 05:58:19,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 05:58:19,258 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:19,258 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:19,268 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 05:58:19,458 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 [2025-02-08 05:58:19,459 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:19,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:19,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1937592239, now seen corresponding path program 1 times [2025-02-08 05:58:19,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:19,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934610830] [2025-02-08 05:58:19,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:19,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:19,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:19,464 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) [2025-02-08 05:58:19,466 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 [2025-02-08 05:58:19,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 05:58:19,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 05:58:19,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:19,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:19,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:58:19,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:19,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:58:19,755 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:19,755 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:19,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934610830] [2025-02-08 05:58:19,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934610830] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:19,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:19,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:58:19,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330201321] [2025-02-08 05:58:19,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:19,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:58:19,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:19,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:58:19,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:58:19,757 INFO L87 Difference]: Start difference. First operand 188 states and 247 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:19,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:19,834 INFO L93 Difference]: Finished difference Result 228 states and 287 transitions. [2025-02-08 05:58:19,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:58:19,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-02-08 05:58:19,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:19,835 INFO L225 Difference]: With dead ends: 228 [2025-02-08 05:58:19,835 INFO L226 Difference]: Without dead ends: 228 [2025-02-08 05:58:19,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:58:19,836 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 8 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:19,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 337 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:58:19,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-02-08 05:58:19,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2025-02-08 05:58:19,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 212 states have (on average 1.278301886792453) internal successors, (271), 222 states have internal predecessors, (271), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:58:19,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2025-02-08 05:58:19,841 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 287 transitions. Word has length 76 [2025-02-08 05:58:19,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:19,842 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 287 transitions. [2025-02-08 05:58:19,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:19,842 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 287 transitions. [2025-02-08 05:58:19,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 05:58:19,843 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:19,843 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:19,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 05:58:20,043 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 [2025-02-08 05:58:20,044 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:20,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:20,044 INFO L85 PathProgramCache]: Analyzing trace with hash 237087858, now seen corresponding path program 1 times [2025-02-08 05:58:20,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:20,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732099711] [2025-02-08 05:58:20,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:20,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:20,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:20,054 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) [2025-02-08 05:58:20,055 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 [2025-02-08 05:58:20,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 05:58:20,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 05:58:20,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:20,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:20,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:58:20,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:58:20,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:20,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:20,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732099711] [2025-02-08 05:58:20,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732099711] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:20,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:20,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:58:20,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161278767] [2025-02-08 05:58:20,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:20,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:58:20,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:20,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:58:20,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:20,443 INFO L87 Difference]: Start difference. First operand 228 states and 287 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:24,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:58:28,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 05:58:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:30,607 INFO L93 Difference]: Finished difference Result 318 states and 406 transitions. [2025-02-08 05:58:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:58:30,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-02-08 05:58:30,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:30,610 INFO L225 Difference]: With dead ends: 318 [2025-02-08 05:58:30,610 INFO L226 Difference]: Without dead ends: 318 [2025-02-08 05:58:30,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:58:30,611 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 330 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:30,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 400 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2025-02-08 05:58:30,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2025-02-08 05:58:30,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 230. [2025-02-08 05:58:30,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 214 states have (on average 1.266355140186916) internal successors, (271), 224 states have internal predecessors, (271), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:58:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 287 transitions. [2025-02-08 05:58:30,616 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 287 transitions. Word has length 76 [2025-02-08 05:58:30,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:30,617 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 287 transitions. [2025-02-08 05:58:30,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 287 transitions. [2025-02-08 05:58:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 05:58:30,621 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:30,624 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:30,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-08 05:58:30,824 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 [2025-02-08 05:58:30,824 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:30,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:30,825 INFO L85 PathProgramCache]: Analyzing trace with hash 456957054, now seen corresponding path program 1 times [2025-02-08 05:58:30,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:30,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215533207] [2025-02-08 05:58:30,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:30,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:30,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:30,833 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) [2025-02-08 05:58:30,833 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 [2025-02-08 05:58:31,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-08 05:58:31,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 05:58:31,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:31,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:31,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:58:31,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:31,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 05:58:31,129 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:31,129 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:31,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215533207] [2025-02-08 05:58:31,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215533207] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:31,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:31,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:58:31,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790615401] [2025-02-08 05:58:31,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:31,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:58:31,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:31,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:58:31,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:31,131 INFO L87 Difference]: Start difference. First operand 230 states and 287 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:31,202 INFO L93 Difference]: Finished difference Result 196 states and 231 transitions. [2025-02-08 05:58:31,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 05:58:31,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-02-08 05:58:31,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:31,203 INFO L225 Difference]: With dead ends: 196 [2025-02-08 05:58:31,203 INFO L226 Difference]: Without dead ends: 196 [2025-02-08 05:58:31,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 05:58:31,204 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 32 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:31,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 475 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:58:31,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2025-02-08 05:58:31,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2025-02-08 05:58:31,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 180 states have (on average 1.1944444444444444) internal successors, (215), 190 states have internal predecessors, (215), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 05:58:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 231 transitions. [2025-02-08 05:58:31,208 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 231 transitions. Word has length 78 [2025-02-08 05:58:31,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:31,209 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 231 transitions. [2025-02-08 05:58:31,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:31,209 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 231 transitions. [2025-02-08 05:58:31,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 05:58:31,210 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:31,210 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:31,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 05:58:31,414 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 [2025-02-08 05:58:31,414 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:31,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:31,415 INFO L85 PathProgramCache]: Analyzing trace with hash 4904855, now seen corresponding path program 1 times [2025-02-08 05:58:31,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:31,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730552681] [2025-02-08 05:58:31,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:31,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:31,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:31,417 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) [2025-02-08 05:58:31,420 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 [2025-02-08 05:58:31,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-08 05:58:31,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 05:58:31,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:31,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:31,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:58:31,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 05:58:31,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 05:58:31,709 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:31,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730552681] [2025-02-08 05:58:31,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730552681] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:58:31,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:58:31,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 05:58:31,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231722298] [2025-02-08 05:58:31,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:58:31,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 05:58:31,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:31,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 05:58:31,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:31,710 INFO L87 Difference]: Start difference. First operand 196 states and 231 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:31,736 INFO L93 Difference]: Finished difference Result 199 states and 235 transitions. [2025-02-08 05:58:31,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 05:58:31,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-02-08 05:58:31,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:31,739 INFO L225 Difference]: With dead ends: 199 [2025-02-08 05:58:31,739 INFO L226 Difference]: Without dead ends: 199 [2025-02-08 05:58:31,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 05:58:31,739 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:31,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 539 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 05:58:31,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-02-08 05:58:31,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2025-02-08 05:58:31,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 182 states have (on average 1.1978021978021978) internal successors, (218), 193 states have internal predecessors, (218), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 05:58:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 235 transitions. [2025-02-08 05:58:31,744 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 235 transitions. Word has length 78 [2025-02-08 05:58:31,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:31,744 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 235 transitions. [2025-02-08 05:58:31,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 05:58:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 235 transitions. [2025-02-08 05:58:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-08 05:58:31,745 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:31,745 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:31,756 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 [2025-02-08 05:58:31,945 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 [2025-02-08 05:58:31,946 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:31,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:31,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1049380589, now seen corresponding path program 1 times [2025-02-08 05:58:31,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:31,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [42593532] [2025-02-08 05:58:31,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:31,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:31,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:31,949 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) [2025-02-08 05:58:31,950 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 [2025-02-08 05:58:32,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-08 05:58:32,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-08 05:58:32,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:32,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:32,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 05:58:32,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 05:58:32,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:58:32,499 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 05:58:32,499 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:32,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42593532] [2025-02-08 05:58:32,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42593532] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:58:32,499 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:58:32,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-02-08 05:58:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512860226] [2025-02-08 05:58:32,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:58:32,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:58:32,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:32,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:58:32,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:58:32,501 INFO L87 Difference]: Start difference. First operand 199 states and 235 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:32,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:32,785 INFO L93 Difference]: Finished difference Result 399 states and 473 transitions. [2025-02-08 05:58:32,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:58:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 80 [2025-02-08 05:58:32,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:32,790 INFO L225 Difference]: With dead ends: 399 [2025-02-08 05:58:32,790 INFO L226 Difference]: Without dead ends: 399 [2025-02-08 05:58:32,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-08 05:58:32,790 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 431 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:32,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 780 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 05:58:32,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2025-02-08 05:58:32,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2025-02-08 05:58:32,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 379 states have (on average 1.1794195250659631) internal successors, (447), 390 states have internal predecessors, (447), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-08 05:58:32,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 473 transitions. [2025-02-08 05:58:32,797 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 473 transitions. Word has length 80 [2025-02-08 05:58:32,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:32,797 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 473 transitions. [2025-02-08 05:58:32,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:32,798 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 473 transitions. [2025-02-08 05:58:32,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2025-02-08 05:58:32,799 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:32,799 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:32,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 05:58:33,000 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 [2025-02-08 05:58:33,000 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:33,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:33,001 INFO L85 PathProgramCache]: Analyzing trace with hash -111125256, now seen corresponding path program 1 times [2025-02-08 05:58:33,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:33,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442654732] [2025-02-08 05:58:33,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:58:33,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:33,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:33,003 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) [2025-02-08 05:58:33,005 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 [2025-02-08 05:58:33,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 242 statements into 1 equivalence classes. [2025-02-08 05:58:33,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 242 of 242 statements. [2025-02-08 05:58:33,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:58:33,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:33,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:58:33,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 115 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-08 05:58:33,714 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:58:33,778 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 115 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-08 05:58:33,778 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:33,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442654732] [2025-02-08 05:58:33,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442654732] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:58:33,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:58:33,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 05:58:33,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521942932] [2025-02-08 05:58:33,779 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:58:33,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 05:58:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:33,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 05:58:33,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 05:58:33,780 INFO L87 Difference]: Start difference. First operand 399 states and 473 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:58:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:33,871 INFO L93 Difference]: Finished difference Result 410 states and 496 transitions. [2025-02-08 05:58:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 05:58:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 242 [2025-02-08 05:58:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:33,874 INFO L225 Difference]: With dead ends: 410 [2025-02-08 05:58:33,874 INFO L226 Difference]: Without dead ends: 410 [2025-02-08 05:58:33,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 05:58:33,874 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 4 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:33,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 539 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:58:33,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2025-02-08 05:58:33,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 408. [2025-02-08 05:58:33,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 387 states have (on average 1.1912144702842378) internal successors, (461), 398 states have internal predecessors, (461), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2025-02-08 05:58:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 491 transitions. [2025-02-08 05:58:33,881 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 491 transitions. Word has length 242 [2025-02-08 05:58:33,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:33,882 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 491 transitions. [2025-02-08 05:58:33,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 05:58:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 491 transitions. [2025-02-08 05:58:33,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2025-02-08 05:58:33,884 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:33,884 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:33,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 05:58:34,088 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 [2025-02-08 05:58:34,088 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:34,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:34,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1506589892, now seen corresponding path program 2 times [2025-02-08 05:58:34,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:34,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411346644] [2025-02-08 05:58:34,089 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:58:34,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:34,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:34,092 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) [2025-02-08 05:58:34,093 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 [2025-02-08 05:58:34,444 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 246 statements into 2 equivalence classes. [2025-02-08 05:58:34,861 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 246 of 246 statements. [2025-02-08 05:58:34,861 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 05:58:34,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:58:34,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 05:58:34,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:58:34,960 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 127 proven. 3 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2025-02-08 05:58:34,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:58:35,065 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 109 proven. 20 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-02-08 05:58:35,065 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 05:58:35,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411346644] [2025-02-08 05:58:35,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411346644] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:58:35,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 05:58:35,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 05:58:35,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831714989] [2025-02-08 05:58:35,065 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 05:58:35,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:58:35,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 05:58:35,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:58:35,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:58:35,066 INFO L87 Difference]: Start difference. First operand 408 states and 491 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:35,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 05:58:35,274 INFO L93 Difference]: Finished difference Result 416 states and 501 transitions. [2025-02-08 05:58:35,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 05:58:35,274 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 246 [2025-02-08 05:58:35,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 05:58:35,276 INFO L225 Difference]: With dead ends: 416 [2025-02-08 05:58:35,276 INFO L226 Difference]: Without dead ends: 414 [2025-02-08 05:58:35,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-08 05:58:35,277 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 6 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 05:58:35,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1075 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 05:58:35,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2025-02-08 05:58:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2025-02-08 05:58:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 391 states have (on average 1.1943734015345269) internal successors, (467), 402 states have internal predecessors, (467), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-08 05:58:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 493 transitions. [2025-02-08 05:58:35,284 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 493 transitions. Word has length 246 [2025-02-08 05:58:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 05:58:35,284 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 493 transitions. [2025-02-08 05:58:35,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 05:58:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 493 transitions. [2025-02-08 05:58:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2025-02-08 05:58:35,286 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 05:58:35,286 INFO L218 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:58:35,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 05:58:35,486 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 [2025-02-08 05:58:35,487 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 05:58:35,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:58:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1384077756, now seen corresponding path program 3 times [2025-02-08 05:58:35,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 05:58:35,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202844263] [2025-02-08 05:58:35,488 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:58:35,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:58:35,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:58:35,490 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) [2025-02-08 05:58:35,492 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 [2025-02-08 05:58:35,844 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 250 statements into 9 equivalence classes.