./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.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_SFH_test7-2.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 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:09:22,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:09:22,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 06:09:22,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:09:22,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:09:22,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:09:22,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:09:22,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:09:22,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:09:22,503 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:09:22,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:09:22,503 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:09:22,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:09:22,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:09:22,503 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:09:22,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:09:22,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:09:22,504 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:09:22,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:09:22,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:09:22,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:09:22,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:09:22,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:09:22,506 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:09:22,506 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:09:22,506 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:09:22,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:09:22,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:09:22,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:09:22,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:09:22,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:09:22,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:09:22,507 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:09:22,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:09:22,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:09:22,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:09:22,507 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:09:22,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:09:22,507 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 -> 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc [2025-02-08 06:09:22,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:09:22,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:09:22,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:09:22,805 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:09:22,805 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:09:22,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-02-08 06:09:24,020 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5704b3c3/53538de4149348448edc48d5879d7652/FLAGf93fda65b [2025-02-08 06:09:24,448 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:09:24,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-02-08 06:09:24,472 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5704b3c3/53538de4149348448edc48d5879d7652/FLAGf93fda65b [2025-02-08 06:09:24,487 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c5704b3c3/53538de4149348448edc48d5879d7652 [2025-02-08 06:09:24,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:09:24,490 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:09:24,492 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:09:24,492 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:09:24,496 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:09:24,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:09:24" (1/1) ... [2025-02-08 06:09:24,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a2235f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:24, skipping insertion in model container [2025-02-08 06:09:24,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:09:24" (1/1) ... [2025-02-08 06:09:24,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:09:24,819 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 06:09:24,847 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 06:09:24,849 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 06:09:24,856 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 06:09:24,865 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 06:09:24,905 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 06:09:24,906 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 06:09:24,907 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 06:09:24,908 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 06:09:24,910 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 06:09:24,911 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 06:09:24,912 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 06:09:24,912 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 06:09:24,915 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 06:09:24,916 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 06:09:24,918 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 06:09:24,919 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 06:09:24,919 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 06:09:24,921 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 06:09:24,925 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 06:09:24,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:09:24,948 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 06:09:24,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b9ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:24, skipping insertion in model container [2025-02-08 06:09:24,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:09:24,951 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 06:09:24,953 INFO L158 Benchmark]: Toolchain (without parser) took 461.67ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 85.2MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:09:24,953 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:09:24,953 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.39ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 85.2MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:09:24,954 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.39ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 85.2MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: 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_SFH_test7-2.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 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:09:26,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:09:27,027 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 06:09:27,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:09:27,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:09:27,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:09:27,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:09:27,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:09:27,053 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:09:27,054 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:09:27,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:09:27,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:09:27,054 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:09:27,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:09:27,054 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:09:27,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:09:27,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:09:27,055 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:09:27,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:09:27,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:09:27,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:09:27,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:09:27,055 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:09:27,056 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:09:27,057 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:09:27,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:09:27,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:09:27,057 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 -> 9e43379b3f2624d77eec1084820c7c07499f5ec4432514ab066d4f5cf96eeebc [2025-02-08 06:09:27,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:09:27,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:09:27,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:09:27,382 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:09:27,382 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:09:27,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-02-08 06:09:28,736 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91ad51ed9/c5f3ca80bbd74e83873bc30a17533c79/FLAGdb54d7d28 [2025-02-08 06:09:29,095 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:09:29,099 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-2.i [2025-02-08 06:09:29,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91ad51ed9/c5f3ca80bbd74e83873bc30a17533c79/FLAGdb54d7d28 [2025-02-08 06:09:29,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91ad51ed9/c5f3ca80bbd74e83873bc30a17533c79 [2025-02-08 06:09:29,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:09:29,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:09:29,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:09:29,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:09:29,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:09:29,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:29,157 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 06:09:29, skipping insertion in model container [2025-02-08 06:09:29,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:29,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:09:29,504 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 06:09:29,544 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 06:09:29,548 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 06:09:29,551 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 06:09:29,560 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 06:09:29,595 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 06:09:29,595 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 06:09:29,598 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 06:09:29,598 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 06:09:29,601 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 06:09:29,602 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 06:09:29,603 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 06:09:29,603 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 06:09:29,608 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 06:09:29,610 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 06:09:29,612 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 06:09:29,613 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 06:09:29,614 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 06:09:29,617 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 06:09:29,620 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 06:09:29,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:09:29,637 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 06:09:29,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:09:29,689 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 06:09:29,710 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 06:09:29,715 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 06:09:29,717 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 06:09:29,720 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 06:09:29,744 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 06:09:29,744 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 06:09:29,749 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 06:09:29,749 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 06:09:29,751 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 06:09:29,751 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 06:09:29,752 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 06:09:29,752 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 06:09:29,757 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 06:09:29,761 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 06:09:29,762 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 06:09:29,763 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 06:09:29,764 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 06:09:29,765 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:09:29,767 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 06:09:29,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:09:29,777 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:09:29,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:09:29,911 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:09:29,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29 WrapperNode [2025-02-08 06:09:29,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:09:29,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:09:29,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:09:29,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:09:29,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:29,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,031 INFO L138 Inliner]: procedures = 179, calls = 323, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1124 [2025-02-08 06:09:30,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:09:30,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:09:30,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:09:30,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:09:30,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,155 INFO L175 MemorySlicer]: Split 301 memory accesses to 3 slices as follows [2, 265, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2025-02-08 06:09:30,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,206 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,239 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:09:30,240 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:09:30,241 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:09:30,241 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:09:30,242 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (1/1) ... [2025-02-08 06:09:30,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:09:30,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:30,274 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 06:09:30,276 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 06:09:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 06:09:30,299 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 06:09:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 06:09:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 06:09:30,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 06:09:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 06:09:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 06:09:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 06:09:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 06:09:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 06:09:30,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 06:09:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 06:09:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 06:09:30,300 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 06:09:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 06:09:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:09:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 06:09:30,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 06:09:30,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:09:30,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:09:30,541 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:09:30,543 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:09:38,219 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-08 06:09:38,304 INFO L? ?]: Removed 137 outVars from TransFormulas that were not future-live. [2025-02-08 06:09:38,304 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:09:38,320 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:09:38,322 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 06:09:38,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:09:38 BoogieIcfgContainer [2025-02-08 06:09:38,324 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:09:38,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:09:38,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:09:38,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:09:38,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:09:29" (1/3) ... [2025-02-08 06:09:38,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4cd0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:09:38, skipping insertion in model container [2025-02-08 06:09:38,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:09:29" (2/3) ... [2025-02-08 06:09:38,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4cd0db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:09:38, skipping insertion in model container [2025-02-08 06:09:38,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:09:38" (3/3) ... [2025-02-08 06:09:38,336 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test7-2.i [2025-02-08 06:09:38,349 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:09:38,350 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test7-2.i that has 5 procedures, 229 locations, 1 initial locations, 43 loop locations, and 2 error locations. [2025-02-08 06:09:38,410 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:09:38,422 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;@2c05c2e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:09:38,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 06:09:38,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 211 states have (on average 1.6587677725118484) internal successors, (350), 214 states have internal predecessors, (350), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-08 06:09:38,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-08 06:09:38,438 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:38,438 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:38,439 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:38,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:38,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1999133039, now seen corresponding path program 1 times [2025-02-08 06:09:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:38,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2091214722] [2025-02-08 06:09:38,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:38,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:38,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:38,460 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 06:09:38,463 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 06:09:38,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 06:09:38,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 06:09:38,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:38,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:38,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 06:09:38,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:38,684 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 06:09:38,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:38,685 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:38,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091214722] [2025-02-08 06:09:38,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091214722] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:38,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:38,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:09:38,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546156749] [2025-02-08 06:09:38,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:38,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 06:09:38,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:38,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 06:09:38,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 06:09:38,714 INFO L87 Difference]: Start difference. First operand has 221 states, 211 states have (on average 1.6587677725118484) internal successors, (350), 214 states have internal predecessors, (350), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 06:09:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:38,748 INFO L93 Difference]: Finished difference Result 218 states and 284 transitions. [2025-02-08 06:09:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 06:09:38,750 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 06:09:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:38,759 INFO L225 Difference]: With dead ends: 218 [2025-02-08 06:09:38,759 INFO L226 Difference]: Without dead ends: 216 [2025-02-08 06:09:38,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 06:09:38,764 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:38,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:09:38,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2025-02-08 06:09:38,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2025-02-08 06:09:38,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 208 states have (on average 1.3173076923076923) internal successors, (274), 210 states have internal predecessors, (274), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:09:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 282 transitions. [2025-02-08 06:09:38,818 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 282 transitions. Word has length 9 [2025-02-08 06:09:38,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:38,819 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 282 transitions. [2025-02-08 06:09:38,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 06:09:38,819 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 282 transitions. [2025-02-08 06:09:38,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-08 06:09:38,820 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:38,820 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:38,830 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 06:09:39,021 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 06:09:39,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:39,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:39,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1872981501, now seen corresponding path program 1 times [2025-02-08 06:09:39,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:39,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216198849] [2025-02-08 06:09:39,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:39,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:39,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:39,024 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 06:09:39,025 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 06:09:39,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 06:09:39,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 06:09:39,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:39,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:39,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 06:09:39,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:39,350 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 06:09:39,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:39,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:39,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216198849] [2025-02-08 06:09:39,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216198849] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:39,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:39,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:09:39,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062463600] [2025-02-08 06:09:39,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:39,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:39,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:39,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:39,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:39,357 INFO L87 Difference]: Start difference. First operand 216 states and 282 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 06:09:43,769 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 06:09:45,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:45,257 INFO L93 Difference]: Finished difference Result 358 states and 468 transitions. [2025-02-08 06:09:45,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:09:45,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 11 [2025-02-08 06:09:45,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:45,262 INFO L225 Difference]: With dead ends: 358 [2025-02-08 06:09:45,263 INFO L226 Difference]: Without dead ends: 358 [2025-02-08 06:09:45,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:09:45,263 INFO L435 NwaCegarLoop]: 289 mSDtfsCounter, 177 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:45,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 791 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2025-02-08 06:09:45,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2025-02-08 06:09:45,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 327. [2025-02-08 06:09:45,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 319 states have (on average 1.316614420062696) internal successors, (420), 321 states have internal predecessors, (420), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:09:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 428 transitions. [2025-02-08 06:09:45,282 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 428 transitions. Word has length 11 [2025-02-08 06:09:45,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:45,282 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 428 transitions. [2025-02-08 06:09:45,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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 06:09:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 428 transitions. [2025-02-08 06:09:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 06:09:45,283 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:45,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:45,291 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 06:09:45,484 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 06:09:45,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:45,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:45,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2055439140, now seen corresponding path program 1 times [2025-02-08 06:09:45,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:45,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502488853] [2025-02-08 06:09:45,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:45,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:45,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:45,488 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 06:09:45,490 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 06:09:45,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 06:09:45,628 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 06:09:45,628 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:45,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:45,631 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:09:45,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:45,657 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:45,659 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:45,659 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:45,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:09:45,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:09:45,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 06:09:45,780 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 06:09:45,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:45,780 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:45,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502488853] [2025-02-08 06:09:45,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502488853] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:45,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:09:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409482326] [2025-02-08 06:09:45,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:45,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:45,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:45,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:45,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:45,781 INFO L87 Difference]: Start difference. First operand 327 states and 428 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 06:09:46,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:46,228 INFO L93 Difference]: Finished difference Result 516 states and 679 transitions. [2025-02-08 06:09:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:09:46,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2025-02-08 06:09:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:46,233 INFO L225 Difference]: With dead ends: 516 [2025-02-08 06:09:46,234 INFO L226 Difference]: Without dead ends: 516 [2025-02-08 06:09:46,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:09:46,234 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 258 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:46,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 778 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 06:09:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2025-02-08 06:09:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 326. [2025-02-08 06:09:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 318 states have (on average 1.3144654088050314) internal successors, (418), 320 states have internal predecessors, (418), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:09:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 426 transitions. [2025-02-08 06:09:46,256 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 426 transitions. Word has length 12 [2025-02-08 06:09:46,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:46,257 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 426 transitions. [2025-02-08 06:09:46,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 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 06:09:46,257 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 426 transitions. [2025-02-08 06:09:46,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-08 06:09:46,259 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:46,259 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, 1] [2025-02-08 06:09:46,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-08 06:09:46,463 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 06:09:46,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:46,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash 10013779, now seen corresponding path program 1 times [2025-02-08 06:09:46,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:46,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630224080] [2025-02-08 06:09:46,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:46,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:46,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:46,468 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 06:09:46,469 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 06:09:46,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-08 06:09:46,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-08 06:09:46,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:46,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:46,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:46,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:09:46,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:46,893 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:46,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630224080] [2025-02-08 06:09:46,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630224080] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:46,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:46,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:09:46,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342751353] [2025-02-08 06:09:46,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:46,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:09:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:46,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:09:46,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:46,895 INFO L87 Difference]: Start difference. First operand 326 states and 426 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 06:09:47,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:47,068 INFO L93 Difference]: Finished difference Result 366 states and 466 transitions. [2025-02-08 06:09:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:09:47,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 81 [2025-02-08 06:09:47,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:47,070 INFO L225 Difference]: With dead ends: 366 [2025-02-08 06:09:47,070 INFO L226 Difference]: Without dead ends: 366 [2025-02-08 06:09:47,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 06:09:47,071 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 8 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:47,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 509 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:09:47,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2025-02-08 06:09:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2025-02-08 06:09:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 358 states have (on average 1.2793296089385475) internal successors, (458), 360 states have internal predecessors, (458), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:09:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 466 transitions. [2025-02-08 06:09:47,091 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 466 transitions. Word has length 81 [2025-02-08 06:09:47,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:47,091 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 466 transitions. [2025-02-08 06:09:47,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 06:09:47,092 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 466 transitions. [2025-02-08 06:09:47,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-08 06:09:47,093 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:47,094 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, 1] [2025-02-08 06:09:47,109 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 06:09:47,294 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 06:09:47,294 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:47,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:47,295 INFO L85 PathProgramCache]: Analyzing trace with hash -10323596, now seen corresponding path program 1 times [2025-02-08 06:09:47,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:47,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532326606] [2025-02-08 06:09:47,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:47,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:47,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:47,298 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 06:09:47,299 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 06:09:47,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-08 06:09:47,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-08 06:09:47,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:47,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:47,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:47,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:09:47,729 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:47,729 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:47,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532326606] [2025-02-08 06:09:47,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532326606] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:47,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:47,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:47,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116494347] [2025-02-08 06:09:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:47,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:47,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:47,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:47,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:47,731 INFO L87 Difference]: Start difference. First operand 366 states and 466 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 06:09:47,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:47,863 INFO L93 Difference]: Finished difference Result 332 states and 410 transitions. [2025-02-08 06:09:47,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:09:47,864 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), 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 81 [2025-02-08 06:09:47,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:47,865 INFO L225 Difference]: With dead ends: 332 [2025-02-08 06:09:47,865 INFO L226 Difference]: Without dead ends: 332 [2025-02-08 06:09:47,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 06:09:47,866 INFO L435 NwaCegarLoop]: 250 mSDtfsCounter, 32 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 736 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 06:09:47,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 736 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:09:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2025-02-08 06:09:47,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2025-02-08 06:09:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 324 states have (on average 1.2407407407407407) internal successors, (402), 326 states have internal predecessors, (402), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:09:47,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 410 transitions. [2025-02-08 06:09:47,879 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 410 transitions. Word has length 81 [2025-02-08 06:09:47,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:47,879 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 410 transitions. [2025-02-08 06:09:47,879 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), 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 06:09:47,879 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 410 transitions. [2025-02-08 06:09:47,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-08 06:09:47,880 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:47,880 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, 1] [2025-02-08 06:09:47,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 06:09:48,081 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 06:09:48,081 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:48,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:48,082 INFO L85 PathProgramCache]: Analyzing trace with hash -640789939, now seen corresponding path program 1 times [2025-02-08 06:09:48,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:48,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315640059] [2025-02-08 06:09:48,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:48,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:48,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:48,085 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 06:09:48,088 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 06:09:48,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-08 06:09:48,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-08 06:09:48,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:48,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:48,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:48,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 06:09:48,526 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:48,526 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:48,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315640059] [2025-02-08 06:09:48,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315640059] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:48,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:48,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:48,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758378530] [2025-02-08 06:09:48,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:48,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:48,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:48,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:48,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:48,528 INFO L87 Difference]: Start difference. First operand 332 states and 410 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 06:09:48,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:48,578 INFO L93 Difference]: Finished difference Result 335 states and 414 transitions. [2025-02-08 06:09:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:09:48,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 81 [2025-02-08 06:09:48,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:48,582 INFO L225 Difference]: With dead ends: 335 [2025-02-08 06:09:48,582 INFO L226 Difference]: Without dead ends: 335 [2025-02-08 06:09:48,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 78 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 06:09:48,583 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 800 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 06:09:48,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 800 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:09:48,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2025-02-08 06:09:48,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2025-02-08 06:09:48,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 326 states have (on average 1.2423312883435582) internal successors, (405), 329 states have internal predecessors, (405), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:09:48,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 414 transitions. [2025-02-08 06:09:48,591 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 414 transitions. Word has length 81 [2025-02-08 06:09:48,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:48,592 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 414 transitions. [2025-02-08 06:09:48,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 06:09:48,592 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 414 transitions. [2025-02-08 06:09:48,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-08 06:09:48,593 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:48,593 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 1] [2025-02-08 06:09:48,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 06:09:48,793 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 06:09:48,794 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:48,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:48,794 INFO L85 PathProgramCache]: Analyzing trace with hash -2876759, now seen corresponding path program 1 times [2025-02-08 06:09:48,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:48,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276234785] [2025-02-08 06:09:48,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:48,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:48,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:48,796 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 06:09:48,797 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 06:09:49,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-08 06:09:49,164 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-08 06:09:49,164 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:49,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:49,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:09:49,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:49,188 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:49,189 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:49,189 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:09:49,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:09:49,283 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:09:49,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-08 06:09:49,311 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:09:49,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:49,311 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:49,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276234785] [2025-02-08 06:09:49,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276234785] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:49,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:49,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:49,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10862881] [2025-02-08 06:09:49,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:49,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:49,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:49,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:49,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:49,312 INFO L87 Difference]: Start difference. First operand 335 states and 414 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), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:09:49,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:49,802 INFO L93 Difference]: Finished difference Result 493 states and 623 transitions. [2025-02-08 06:09:49,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:09:49,803 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), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2025-02-08 06:09:49,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:49,805 INFO L225 Difference]: With dead ends: 493 [2025-02-08 06:09:49,805 INFO L226 Difference]: Without dead ends: 493 [2025-02-08 06:09:49,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:09:49,806 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 204 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:49,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 800 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 06:09:49,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2025-02-08 06:09:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 337. [2025-02-08 06:09:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 328 states have (on average 1.2408536585365855) internal successors, (407), 331 states have internal predecessors, (407), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:09:49,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 416 transitions. [2025-02-08 06:09:49,814 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 416 transitions. Word has length 83 [2025-02-08 06:09:49,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:49,815 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 416 transitions. [2025-02-08 06:09:49,815 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), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:09:49,815 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 416 transitions. [2025-02-08 06:09:49,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-02-08 06:09:49,816 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:49,816 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:49,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 06:09:50,016 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 06:09:50,017 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:50,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:50,017 INFO L85 PathProgramCache]: Analyzing trace with hash 549400901, now seen corresponding path program 1 times [2025-02-08 06:09:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:50,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930475871] [2025-02-08 06:09:50,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:50,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:50,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:50,020 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 06:09:50,021 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 06:09:50,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-02-08 06:09:50,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-02-08 06:09:50,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:50,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:50,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:50,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:50,452 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:09:50,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:50,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:50,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930475871] [2025-02-08 06:09:50,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930475871] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:50,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:50,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:09:50,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255372082] [2025-02-08 06:09:50,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:50,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:09:50,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:50,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:09:50,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:50,454 INFO L87 Difference]: Start difference. First operand 337 states and 416 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (3), 2 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 06:09:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:50,621 INFO L93 Difference]: Finished difference Result 377 states and 456 transitions. [2025-02-08 06:09:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:09:50,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (3), 2 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 118 [2025-02-08 06:09:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:50,624 INFO L225 Difference]: With dead ends: 377 [2025-02-08 06:09:50,625 INFO L226 Difference]: Without dead ends: 377 [2025-02-08 06:09:50,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 06:09:50,625 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 8 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:50,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 487 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:09:50,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2025-02-08 06:09:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2025-02-08 06:09:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 368 states have (on average 1.2146739130434783) internal successors, (447), 371 states have internal predecessors, (447), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:09:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 456 transitions. [2025-02-08 06:09:50,635 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 456 transitions. Word has length 118 [2025-02-08 06:09:50,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:50,636 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 456 transitions. [2025-02-08 06:09:50,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (3), 2 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 06:09:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 456 transitions. [2025-02-08 06:09:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-02-08 06:09:50,637 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:50,637 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:09:50,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 06:09:50,838 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 06:09:50,838 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:50,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 958225126, now seen corresponding path program 1 times [2025-02-08 06:09:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847405432] [2025-02-08 06:09:50,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:50,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:50,841 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 06:09:50,843 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 06:09:51,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-02-08 06:09:51,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-02-08 06:09:51,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:51,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:51,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:51,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 06:09:51,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:51,722 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:51,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847405432] [2025-02-08 06:09:51,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847405432] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:51,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:51,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:51,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148971335] [2025-02-08 06:09:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:51,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:51,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:51,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:51,723 INFO L87 Difference]: Start difference. First operand 377 states and 456 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 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 06:09:56,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:10:00,326 WARN L539 Checker$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 06:10:02,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:10:02,544 INFO L93 Difference]: Finished difference Result 484 states and 590 transitions. [2025-02-08 06:10:02,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:10:02,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 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 118 [2025-02-08 06:10:02,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:10:02,549 INFO L225 Difference]: With dead ends: 484 [2025-02-08 06:10:02,549 INFO L226 Difference]: Without dead ends: 484 [2025-02-08 06:10:02,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 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 06:10:02,549 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 426 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2025-02-08 06:10:02,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 497 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2025-02-08 06:10:02,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2025-02-08 06:10:02,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 481. [2025-02-08 06:10:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 472 states have (on average 1.2245762711864407) internal successors, (578), 475 states have internal predecessors, (578), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:10:02,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 587 transitions. [2025-02-08 06:10:02,562 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 587 transitions. Word has length 118 [2025-02-08 06:10:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:10:02,562 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 587 transitions. [2025-02-08 06:10:02,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (3), 2 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 06:10:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 587 transitions. [2025-02-08 06:10:02,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-08 06:10:02,564 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:10:02,564 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:02,580 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 06:10:02,764 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 06:10:02,764 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:10:02,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:10:02,765 INFO L85 PathProgramCache]: Analyzing trace with hash -932412526, now seen corresponding path program 1 times [2025-02-08 06:10:02,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:10:02,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251033990] [2025-02-08 06:10:02,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:10:02,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:10:02,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:10:02,768 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 06:10:02,769 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 06:10:03,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-08 06:10:03,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-08 06:10:03,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:10:03,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:10:03,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:10:03,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:10:03,268 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:10:03,269 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:10:03,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:10:03,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251033990] [2025-02-08 06:10:03,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251033990] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:10:03,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:10:03,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:10:03,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142436643] [2025-02-08 06:10:03,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:10:03,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:10:03,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:10:03,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:10:03,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:10:03,271 INFO L87 Difference]: Start difference. First operand 481 states and 587 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 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 06:10:03,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:10:03,403 INFO L93 Difference]: Finished difference Result 430 states and 503 transitions. [2025-02-08 06:10:03,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:10:03,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 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 126 [2025-02-08 06:10:03,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:10:03,406 INFO L225 Difference]: With dead ends: 430 [2025-02-08 06:10:03,406 INFO L226 Difference]: Without dead ends: 430 [2025-02-08 06:10:03,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 123 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 06:10:03,408 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 32 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 703 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 06:10:03,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 703 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:10:03,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2025-02-08 06:10:03,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2025-02-08 06:10:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 421 states have (on average 1.173396674584323) internal successors, (494), 424 states have internal predecessors, (494), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:10:03,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 503 transitions. [2025-02-08 06:10:03,419 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 503 transitions. Word has length 126 [2025-02-08 06:10:03,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:10:03,420 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 503 transitions. [2025-02-08 06:10:03,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (3), 2 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 06:10:03,420 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 503 transitions. [2025-02-08 06:10:03,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-02-08 06:10:03,421 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:10:03,421 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:03,437 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 06:10:03,622 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 06:10:03,622 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:10:03,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:10:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2067928085, now seen corresponding path program 1 times [2025-02-08 06:10:03,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:10:03,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767022056] [2025-02-08 06:10:03,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:10:03,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:10:03,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:10:03,627 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 06:10:03,629 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 06:10:03,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-02-08 06:10:04,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-02-08 06:10:04,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:10:04,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:10:04,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:10:04,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:10:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:10:04,202 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:10:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-08 06:10:04,307 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:10:04,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767022056] [2025-02-08 06:10:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767022056] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:10:04,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:10:04,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 06:10:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623751717] [2025-02-08 06:10:04,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:10:04,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 06:10:04,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:10:04,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 06:10:04,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 06:10:04,309 INFO L87 Difference]: Start difference. First operand 430 states and 503 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 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 06:10:04,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:10:04,428 INFO L93 Difference]: Finished difference Result 441 states and 520 transitions. [2025-02-08 06:10:04,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 06:10:04,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 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 126 [2025-02-08 06:10:04,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:10:04,432 INFO L225 Difference]: With dead ends: 441 [2025-02-08 06:10:04,432 INFO L226 Difference]: Without dead ends: 441 [2025-02-08 06:10:04,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 244 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 06:10:04,432 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 5 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:10:04,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1018 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:10:04,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2025-02-08 06:10:04,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 439. [2025-02-08 06:10:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 429 states have (on average 1.1841491841491842) internal successors, (508), 432 states have internal predecessors, (508), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-08 06:10:04,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 518 transitions. [2025-02-08 06:10:04,441 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 518 transitions. Word has length 126 [2025-02-08 06:10:04,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:10:04,442 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 518 transitions. [2025-02-08 06:10:04,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 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 06:10:04,442 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 518 transitions. [2025-02-08 06:10:04,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-02-08 06:10:04,443 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:10:04,443 INFO L218 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:04,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 06:10:04,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:10:04,643 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:10:04,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:10:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1801633255, now seen corresponding path program 2 times [2025-02-08 06:10:04,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:10:04,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397265127] [2025-02-08 06:10:04,644 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 06:10:04,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:10:04,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:10:04,646 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:10:04,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 06:10:04,946 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 130 statements into 2 equivalence classes. [2025-02-08 06:10:05,213 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-02-08 06:10:05,213 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 06:10:05,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:10:05,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:10:05,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:10:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-08 06:10:05,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:10:05,499 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-08 06:10:05,499 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:10:05,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397265127] [2025-02-08 06:10:05,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397265127] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:10:05,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:10:05,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 06:10:05,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841023475] [2025-02-08 06:10:05,500 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:10:05,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 06:10:05,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:10:05,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 06:10:05,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 06:10:05,502 INFO L87 Difference]: Start difference. First operand 439 states and 518 transitions. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 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 06:10:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:10:05,803 INFO L93 Difference]: Finished difference Result 447 states and 528 transitions. [2025-02-08 06:10:05,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 06:10:05,804 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 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 130 [2025-02-08 06:10:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:10:05,805 INFO L225 Difference]: With dead ends: 447 [2025-02-08 06:10:05,805 INFO L226 Difference]: Without dead ends: 445 [2025-02-08 06:10:05,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 250 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 06:10:05,806 INFO L435 NwaCegarLoop]: 258 mSDtfsCounter, 5 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:10:05,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1783 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:10:05,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2025-02-08 06:10:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 443. [2025-02-08 06:10:05,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 433 states have (on average 1.1870669745958429) internal successors, (514), 436 states have internal predecessors, (514), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:10:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 523 transitions. [2025-02-08 06:10:05,816 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 523 transitions. Word has length 130 [2025-02-08 06:10:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:10:05,816 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 523 transitions. [2025-02-08 06:10:05,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 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 06:10:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 523 transitions. [2025-02-08 06:10:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-02-08 06:10:05,817 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:10:05,818 INFO L218 NwaCegarLoop]: trace histogram [10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:10:05,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 06:10:06,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:10:06,022 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:10:06,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:10:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1800579751, now seen corresponding path program 3 times [2025-02-08 06:10:06,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:10:06,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825866243] [2025-02-08 06:10:06,023 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 06:10:06,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:10:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:10:06,025 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:10:06,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 06:10:06,344 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 134 statements into 6 equivalence classes. [2025-02-08 06:10:06,509 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 117 of 134 statements. [2025-02-08 06:10:06,510 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 06:10:06,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:10:06,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 06:10:06,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:10:06,541 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:10:06,541 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:10:06,541 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:10:06,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-08 06:10:08,314 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:10:08,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 162 treesize of output 71 [2025-02-08 06:10:08,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:10:08,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 58 [2025-02-08 06:10:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-08 06:10:08,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:10:08,836 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:10:08,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825866243] [2025-02-08 06:10:08,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825866243] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 06:10:08,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1836208531] [2025-02-08 06:10:08,837 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 06:10:08,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-08 06:10:08,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-08 06:10:08,839 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-08 06:10:08,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2025-02-08 06:10:09,307 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 134 statements into 6 equivalence classes. [2025-02-08 06:10:09,678 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 117 of 134 statements. [2025-02-08 06:10:09,678 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 06:10:09,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:10:09,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 06:10:09,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:10:09,704 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:10:09,705 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:10:09,705 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-08 06:10:09,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2025-02-08 06:10:11,138 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:10:11,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 65 [2025-02-08 06:10:11,215 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-08 06:10:11,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 58 [2025-02-08 06:10:11,248 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-08 06:10:11,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:10:11,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1836208531] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 06:10:11,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:10:11,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2025-02-08 06:10:11,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294780891] [2025-02-08 06:10:11,403 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:10:11,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 06:10:11,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:10:11,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 06:10:11,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2025-02-08 06:10:11,404 INFO L87 Difference]: Start difference. First operand 443 states and 523 transitions. Second operand has 10 states, 10 states have (on average 18.3) internal successors, (183), 9 states have internal predecessors, (183), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:10:15,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:19,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:23,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:27,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:31,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:35,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:40,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:44,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:48,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:52,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-08 06:10:56,344 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 [0]