./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:04:43,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:04:43,940 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 06:04:43,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:04:43,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:04:43,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:04:43,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:04:43,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:04:43,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:04:43,977 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:04:43,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:04:43,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:04:43,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:04:43,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:04:43,979 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:04:43,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:04:43,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:04:43,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:04:43,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:04:43,981 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 -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2025-02-08 06:04:44,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:04:44,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:04:44,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:04:44,216 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:04:44,216 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:04:44,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-02-08 06:04:45,515 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b501332e7/b9ff986424c74ca59256ff693822116e/FLAGbc46a40ba [2025-02-08 06:04:45,880 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:04:45,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-02-08 06:04:45,898 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b501332e7/b9ff986424c74ca59256ff693822116e/FLAGbc46a40ba [2025-02-08 06:04:45,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b501332e7/b9ff986424c74ca59256ff693822116e [2025-02-08 06:04:45,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:04:45,917 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:04:45,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:04:45,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:04:45,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:04:45,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:04:45" (1/1) ... [2025-02-08 06:04:45,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f9808d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:45, skipping insertion in model container [2025-02-08 06:04:45,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:04:45" (1/1) ... [2025-02-08 06:04:45,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:04:46,310 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 06:04:46,330 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 06:04:46,333 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 06:04:46,336 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 06:04:46,340 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 06:04:46,348 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 06:04:46,349 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 06:04:46,351 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 06:04:46,352 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 06:04:46,353 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 06:04:46,353 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 06:04:46,356 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 06:04:46,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:04:46,368 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 06:04:46,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@89ddc22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:46, skipping insertion in model container [2025-02-08 06:04:46,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:04:46,369 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 06:04:46,371 INFO L158 Benchmark]: Toolchain (without parser) took 452.94ms. Allocated memory is still 201.3MB. Free memory was 156.3MB in the beginning and 139.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:04:46,371 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:04:46,371 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.08ms. Allocated memory is still 201.3MB. Free memory was 156.3MB in the beginning and 139.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 06:04:46,372 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 133.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.08ms. Allocated memory is still 201.3MB. Free memory was 156.3MB in the beginning and 139.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 764]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:04:48,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:04:48,528 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 06:04:48,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:04:48,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:04:48,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:04:48,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:04:48,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:04:48,550 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:04:48,550 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:04:48,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:04:48,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:04:48,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:04:48,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:04:48,551 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:04:48,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:04:48,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:04:48,551 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:04:48,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:04:48,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:04:48,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:04:48,552 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:04:48,553 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:04:48,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:04:48,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:04:48,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:04:48,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:04:48,554 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 -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2025-02-08 06:04:48,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:04:48,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:04:48,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:04:48,902 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:04:48,902 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:04:48,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-02-08 06:04:50,235 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/80e4abd6a/db561b5ffc7e4a1abf2ba04390287610/FLAGbd1d4487a [2025-02-08 06:04:50,523 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:04:50,526 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2025-02-08 06:04:50,546 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/80e4abd6a/db561b5ffc7e4a1abf2ba04390287610/FLAGbd1d4487a [2025-02-08 06:04:50,563 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/80e4abd6a/db561b5ffc7e4a1abf2ba04390287610 [2025-02-08 06:04:50,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:04:50,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:04:50,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:04:50,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:04:50,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:04:50,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:04:50" (1/1) ... [2025-02-08 06:04:50,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ca3858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:50, skipping insertion in model container [2025-02-08 06:04:50,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:04:50" (1/1) ... [2025-02-08 06:04:50,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:04:50,896 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 06:04:50,932 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 06:04:50,940 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 06:04:50,943 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:04:50,948 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 06:04:50,959 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 06:04:50,960 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 06:04:50,966 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 06:04:50,967 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 06:04:50,968 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 06:04:50,968 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 06:04:50,976 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 06:04:50,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:04:51,002 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 06:04:51,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:04:51,053 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:04:51,074 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 06:04:51,076 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 06:04:51,077 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 06:04:51,084 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 06:04:51,096 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 06:04:51,098 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 06:04:51,101 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 06:04:51,102 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 06:04:51,103 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 06:04:51,105 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 06:04:51,109 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 06:04:51,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:04:51,117 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:04:51,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:04:51,250 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:04:51,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51 WrapperNode [2025-02-08 06:04:51,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:04:51,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:04:51,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:04:51,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:04:51,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,331 INFO L138 Inliner]: procedures = 179, calls = 231, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 759 [2025-02-08 06:04:51,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:04:51,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:04:51,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:04:51,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:04:51,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,357 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,423 INFO L175 MemorySlicer]: Split 206 memory accesses to 2 slices as follows [2, 204]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 50 writes are split as follows [0, 50]. [2025-02-08 06:04:51,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,462 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,470 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:04:51,485 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:04:51,485 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:04:51,486 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:04:51,486 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (1/1) ... [2025-02-08 06:04:51,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:04:51,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:04:51,531 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 06:04:51,537 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 06:04:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 06:04:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 06:04:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 06:04:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 06:04:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 06:04:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 06:04:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 06:04:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 06:04:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:04:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:04:51,720 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:04:51,722 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:04:59,154 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2025-02-08 06:04:59,154 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:04:59,170 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:04:59,170 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 06:04:59,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:04:59 BoogieIcfgContainer [2025-02-08 06:04:59,170 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:04:59,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:04:59,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:04:59,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:04:59,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:04:50" (1/3) ... [2025-02-08 06:04:59,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ea301b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:04:59, skipping insertion in model container [2025-02-08 06:04:59,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:04:51" (2/3) ... [2025-02-08 06:04:59,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ea301b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:04:59, skipping insertion in model container [2025-02-08 06:04:59,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:04:59" (3/3) ... [2025-02-08 06:04:59,181 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-2.i [2025-02-08 06:04:59,205 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:04:59,206 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test1-2.i that has 4 procedures, 159 locations, 1 initial locations, 25 loop locations, and 2 error locations. [2025-02-08 06:04:59,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:04:59,290 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;@5c460697, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:04:59,291 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 06:04:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 155 states, 136 states have (on average 1.661764705882353) internal successors, (226), 148 states have internal predecessors, (226), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-08 06:04:59,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 06:04:59,311 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:04:59,312 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:04:59,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:04:59,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:04:59,321 INFO L85 PathProgramCache]: Analyzing trace with hash -983602649, now seen corresponding path program 1 times [2025-02-08 06:04:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:04:59,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [630611777] [2025-02-08 06:04:59,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:04:59,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:04:59,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:04:59,341 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 06:04:59,343 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 06:04:59,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 06:04:59,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 06:04:59,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:04:59,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:04:59,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:04:59,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:04:59,551 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 06:04:59,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:04:59,552 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:04:59,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630611777] [2025-02-08 06:04:59,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630611777] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:04:59,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:04:59,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:04:59,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907495031] [2025-02-08 06:04:59,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:04:59,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:04:59,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:04:59,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:04:59,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:04:59,572 INFO L87 Difference]: Start difference. First operand has 155 states, 136 states have (on average 1.661764705882353) internal successors, (226), 148 states have internal predecessors, (226), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:05:00,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:00,345 INFO L93 Difference]: Finished difference Result 245 states and 344 transitions. [2025-02-08 06:05:00,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:05:00,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 06:05:00,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:00,357 INFO L225 Difference]: With dead ends: 245 [2025-02-08 06:05:00,357 INFO L226 Difference]: Without dead ends: 239 [2025-02-08 06:05:00,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:05:00,360 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 108 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:00,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 386 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-08 06:05:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2025-02-08 06:05:00,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 200. [2025-02-08 06:05:00,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 184 states have (on average 1.3858695652173914) internal successors, (255), 194 states have internal predecessors, (255), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:05:00,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 271 transitions. [2025-02-08 06:05:00,390 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 271 transitions. Word has length 7 [2025-02-08 06:05:00,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:00,390 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 271 transitions. [2025-02-08 06:05:00,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:05:00,390 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 271 transitions. [2025-02-08 06:05:00,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 06:05:00,391 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:00,391 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:00,398 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 06:05:00,594 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 06:05:00,594 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:00,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:00,595 INFO L85 PathProgramCache]: Analyzing trace with hash -983572858, now seen corresponding path program 1 times [2025-02-08 06:05:00,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:00,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [98852370] [2025-02-08 06:05:00,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:00,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:00,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:00,598 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 06:05:00,601 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 06:05:00,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 06:05:00,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 06:05:00,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:00,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:00,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 06:05:00,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:00,703 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 06:05:00,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:05:00,703 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:00,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98852370] [2025-02-08 06:05:00,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98852370] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:05:00,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:05:00,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 06:05:00,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855618472] [2025-02-08 06:05:00,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:05:00,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:05:00,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:00,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:05:00,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:05:00,705 INFO L87 Difference]: Start difference. First operand 200 states and 271 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:05:04,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:05:05,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:05,711 INFO L93 Difference]: Finished difference Result 237 states and 316 transitions. [2025-02-08 06:05:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:05:05,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 06:05:05,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:05,719 INFO L225 Difference]: With dead ends: 237 [2025-02-08 06:05:05,719 INFO L226 Difference]: Without dead ends: 236 [2025-02-08 06:05:05,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:05:05,720 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 52 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:05,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 373 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2025-02-08 06:05:05,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2025-02-08 06:05:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 202. [2025-02-08 06:05:05,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 186 states have (on average 1.381720430107527) internal successors, (257), 196 states have internal predecessors, (257), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:05:05,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 273 transitions. [2025-02-08 06:05:05,728 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 273 transitions. Word has length 7 [2025-02-08 06:05:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:05,729 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 273 transitions. [2025-02-08 06:05:05,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:05:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 273 transitions. [2025-02-08 06:05:05,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-02-08 06:05:05,729 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:05,729 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:05,737 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 06:05:05,930 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 06:05:05,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:05,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:05,930 INFO L85 PathProgramCache]: Analyzing trace with hash -100548365, now seen corresponding path program 1 times [2025-02-08 06:05:05,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:05,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411611980] [2025-02-08 06:05:05,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:05,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:05,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:05,934 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 06:05:05,935 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 06:05:06,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-08 06:05:06,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-08 06:05:06,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:06,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:06,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 06:05:06,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:06,054 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 06:05:06,054 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:05:06,055 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:06,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411611980] [2025-02-08 06:05:06,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411611980] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:05:06,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:05:06,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:05:06,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786184003] [2025-02-08 06:05:06,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:05:06,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:05:06,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:06,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:05:06,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:05:06,056 INFO L87 Difference]: Start difference. First operand 202 states and 273 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:05:10,245 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 06:05:12,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:12,332 INFO L93 Difference]: Finished difference Result 221 states and 289 transitions. [2025-02-08 06:05:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:05:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-02-08 06:05:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:12,339 INFO L225 Difference]: With dead ends: 221 [2025-02-08 06:05:12,339 INFO L226 Difference]: Without dead ends: 217 [2025-02-08 06:05:12,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:05:12,343 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 92 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:12,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 569 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2025-02-08 06:05:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2025-02-08 06:05:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 188. [2025-02-08 06:05:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 172 states have (on average 1.3430232558139534) internal successors, (231), 182 states have internal predecessors, (231), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:05:12,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 247 transitions. [2025-02-08 06:05:12,365 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 247 transitions. Word has length 9 [2025-02-08 06:05:12,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:12,372 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 247 transitions. [2025-02-08 06:05:12,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:05:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 247 transitions. [2025-02-08 06:05:12,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 06:05:12,374 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:12,374 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:12,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 06:05:12,575 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 06:05:12,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:12,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:12,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1937592239, now seen corresponding path program 1 times [2025-02-08 06:05:12,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:12,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1508214738] [2025-02-08 06:05:12,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:12,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:12,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:12,590 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 06:05:12,591 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 06:05:12,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 06:05:12,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 06:05:12,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:12,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:12,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:05:12,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:05:12,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:05:12,984 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:12,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508214738] [2025-02-08 06:05:12,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508214738] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:05:12,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:05:12,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:05:12,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928083522] [2025-02-08 06:05:12,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:05:12,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:05:12,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:12,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:05:12,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:05:12,986 INFO L87 Difference]: Start difference. First operand 188 states and 247 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:13,117 INFO L93 Difference]: Finished difference Result 228 states and 287 transitions. [2025-02-08 06:05:13,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:05:13,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-02-08 06:05:13,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:13,125 INFO L225 Difference]: With dead ends: 228 [2025-02-08 06:05:13,125 INFO L226 Difference]: Without dead ends: 228 [2025-02-08 06:05:13,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:05:13,126 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 8 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:13,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 337 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:05:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-02-08 06:05:13,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2025-02-08 06:05:13,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 212 states have (on average 1.278301886792453) internal successors, (271), 222 states have internal predecessors, (271), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:05:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2025-02-08 06:05:13,145 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 287 transitions. Word has length 76 [2025-02-08 06:05:13,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:13,145 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 287 transitions. [2025-02-08 06:05:13,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:13,146 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 287 transitions. [2025-02-08 06:05:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-08 06:05:13,147 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:13,147 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:13,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 06:05:13,348 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 06:05:13,348 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:13,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:13,349 INFO L85 PathProgramCache]: Analyzing trace with hash 237087858, now seen corresponding path program 1 times [2025-02-08 06:05:13,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:13,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [635356301] [2025-02-08 06:05:13,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:13,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:13,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:13,359 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 06:05:13,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 06:05:13,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-08 06:05:13,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-08 06:05:13,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:13,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:13,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:05:13,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:13,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:05:13,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:05:13,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:13,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635356301] [2025-02-08 06:05:13,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635356301] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:05:13,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:05:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:05:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180686331] [2025-02-08 06:05:13,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:05:13,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:05:13,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:13,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:05:13,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:05:13,902 INFO L87 Difference]: Start difference. First operand 228 states and 287 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:18,123 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 06:05:22,132 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 06:05:23,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:23,421 INFO L93 Difference]: Finished difference Result 318 states and 406 transitions. [2025-02-08 06:05:23,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:05:23,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2025-02-08 06:05:23,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:23,430 INFO L225 Difference]: With dead ends: 318 [2025-02-08 06:05:23,430 INFO L226 Difference]: Without dead ends: 318 [2025-02-08 06:05:23,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:05:23,430 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 330 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:23,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 400 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 9.5s Time] [2025-02-08 06:05:23,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2025-02-08 06:05:23,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 230. [2025-02-08 06:05:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 214 states have (on average 1.266355140186916) internal successors, (271), 224 states have internal predecessors, (271), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:05:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 287 transitions. [2025-02-08 06:05:23,442 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 287 transitions. Word has length 76 [2025-02-08 06:05:23,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:23,443 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 287 transitions. [2025-02-08 06:05:23,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 287 transitions. [2025-02-08 06:05:23,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 06:05:23,446 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:23,446 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:23,458 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 06:05:23,646 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 06:05:23,647 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:23,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:23,648 INFO L85 PathProgramCache]: Analyzing trace with hash 456957054, now seen corresponding path program 1 times [2025-02-08 06:05:23,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:23,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1958718829] [2025-02-08 06:05:23,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:23,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:23,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:23,651 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 06:05:23,652 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 06:05:23,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-08 06:05:23,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 06:05:23,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:23,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:23,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:05:23,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:05:23,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:05:23,974 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:23,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958718829] [2025-02-08 06:05:23,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958718829] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:05:23,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:05:23,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:05:23,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148253842] [2025-02-08 06:05:23,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:05:23,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:05:23,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:23,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:05:23,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:05:23,976 INFO L87 Difference]: Start difference. First operand 230 states and 287 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:24,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:24,075 INFO L93 Difference]: Finished difference Result 196 states and 231 transitions. [2025-02-08 06:05:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:05:24,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-02-08 06:05:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:24,077 INFO L225 Difference]: With dead ends: 196 [2025-02-08 06:05:24,077 INFO L226 Difference]: Without dead ends: 196 [2025-02-08 06:05:24,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:05:24,078 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 32 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:24,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 475 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:05:24,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2025-02-08 06:05:24,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2025-02-08 06:05:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 180 states have (on average 1.1944444444444444) internal successors, (215), 190 states have internal predecessors, (215), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-08 06:05:24,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 231 transitions. [2025-02-08 06:05:24,082 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 231 transitions. Word has length 78 [2025-02-08 06:05:24,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:24,082 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 231 transitions. [2025-02-08 06:05:24,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 231 transitions. [2025-02-08 06:05:24,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-08 06:05:24,082 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:24,082 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:24,093 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 06:05:24,287 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 06:05:24,287 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:24,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:24,288 INFO L85 PathProgramCache]: Analyzing trace with hash 4904855, now seen corresponding path program 1 times [2025-02-08 06:05:24,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:24,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1537125608] [2025-02-08 06:05:24,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:24,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:24,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:24,294 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 06:05:24,296 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 06:05:24,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-08 06:05:24,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-08 06:05:24,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:24,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:24,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:05:24,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-08 06:05:24,653 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:05:24,653 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:24,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537125608] [2025-02-08 06:05:24,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537125608] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:05:24,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:05:24,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:05:24,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945537850] [2025-02-08 06:05:24,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:05:24,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:05:24,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:24,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:05:24,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:05:24,656 INFO L87 Difference]: Start difference. First operand 196 states and 231 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:24,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:24,685 INFO L93 Difference]: Finished difference Result 199 states and 235 transitions. [2025-02-08 06:05:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:05:24,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2025-02-08 06:05:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:24,688 INFO L225 Difference]: With dead ends: 199 [2025-02-08 06:05:24,688 INFO L226 Difference]: Without dead ends: 199 [2025-02-08 06:05:24,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:05:24,689 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 0 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:24,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 539 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 06:05:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2025-02-08 06:05:24,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2025-02-08 06:05:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 182 states have (on average 1.1978021978021978) internal successors, (218), 193 states have internal predecessors, (218), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-08 06:05:24,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 235 transitions. [2025-02-08 06:05:24,695 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 235 transitions. Word has length 78 [2025-02-08 06:05:24,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:24,695 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 235 transitions. [2025-02-08 06:05:24,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:05:24,696 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 235 transitions. [2025-02-08 06:05:24,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-08 06:05:24,697 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:24,697 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:24,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-08 06:05:24,898 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 06:05:24,899 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:24,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:24,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1049380589, now seen corresponding path program 1 times [2025-02-08 06:05:24,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:24,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948438479] [2025-02-08 06:05:24,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:24,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:24,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:24,902 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 06:05:24,904 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 06:05:25,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-08 06:05:25,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-08 06:05:25,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:25,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:25,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:05:25,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:25,329 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 06:05:25,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:05:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-08 06:05:25,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:25,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948438479] [2025-02-08 06:05:25,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948438479] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:05:25,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:05:25,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-02-08 06:05:25,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984344586] [2025-02-08 06:05:25,522 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:05:25,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 06:05:25,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:25,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 06:05:25,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-08 06:05:25,523 INFO L87 Difference]: Start difference. First operand 199 states and 235 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:05:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:25,889 INFO L93 Difference]: Finished difference Result 399 states and 473 transitions. [2025-02-08 06:05:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 06:05:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 80 [2025-02-08 06:05:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:25,891 INFO L225 Difference]: With dead ends: 399 [2025-02-08 06:05:25,891 INFO L226 Difference]: Without dead ends: 399 [2025-02-08 06:05:25,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-08 06:05:25,892 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 431 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:25,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 780 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 06:05:25,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2025-02-08 06:05:25,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2025-02-08 06:05:25,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 379 states have (on average 1.1794195250659631) internal successors, (447), 390 states have internal predecessors, (447), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-08 06:05:25,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 473 transitions. [2025-02-08 06:05:25,899 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 473 transitions. Word has length 80 [2025-02-08 06:05:25,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:25,899 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 473 transitions. [2025-02-08 06:05:25,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:05:25,899 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 473 transitions. [2025-02-08 06:05:25,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2025-02-08 06:05:25,901 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:25,901 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:25,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-08 06:05:26,101 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 06:05:26,102 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:26,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:26,103 INFO L85 PathProgramCache]: Analyzing trace with hash -111125256, now seen corresponding path program 1 times [2025-02-08 06:05:26,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:26,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935076631] [2025-02-08 06:05:26,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:05:26,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:26,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:26,106 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 06:05:26,107 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 06:05:26,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 242 statements into 1 equivalence classes. [2025-02-08 06:05:26,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 242 of 242 statements. [2025-02-08 06:05:26,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:05:26,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:26,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:05:26,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 115 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-08 06:05:26,932 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:05:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 115 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2025-02-08 06:05:27,012 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:27,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935076631] [2025-02-08 06:05:27,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935076631] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:05:27,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:05:27,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 06:05:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738565339] [2025-02-08 06:05:27,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:05:27,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 06:05:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:27,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 06:05:27,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 06:05:27,014 INFO L87 Difference]: Start difference. First operand 399 states and 473 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:05:27,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:27,131 INFO L93 Difference]: Finished difference Result 410 states and 496 transitions. [2025-02-08 06:05:27,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 06:05:27,131 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 242 [2025-02-08 06:05:27,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:27,133 INFO L225 Difference]: With dead ends: 410 [2025-02-08 06:05:27,133 INFO L226 Difference]: Without dead ends: 410 [2025-02-08 06:05:27,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 06:05:27,134 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 4 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:27,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 539 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:05:27,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2025-02-08 06:05:27,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 408. [2025-02-08 06:05:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 387 states have (on average 1.1912144702842378) internal successors, (461), 398 states have internal predecessors, (461), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2025-02-08 06:05:27,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 491 transitions. [2025-02-08 06:05:27,141 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 491 transitions. Word has length 242 [2025-02-08 06:05:27,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:27,141 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 491 transitions. [2025-02-08 06:05:27,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 06:05:27,142 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 491 transitions. [2025-02-08 06:05:27,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2025-02-08 06:05:27,143 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:27,143 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:27,169 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 06:05:27,344 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 06:05:27,344 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:27,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:27,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1506589892, now seen corresponding path program 2 times [2025-02-08 06:05:27,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:27,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [314178935] [2025-02-08 06:05:27,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 06:05:27,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:27,348 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 06:05:27,349 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 06:05:27,697 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 246 statements into 2 equivalence classes. [2025-02-08 06:05:28,126 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 246 of 246 statements. [2025-02-08 06:05:28,127 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 06:05:28,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:05:28,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:05:28,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:05:28,241 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 127 proven. 3 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2025-02-08 06:05:28,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:05:28,367 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 109 proven. 20 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2025-02-08 06:05:28,367 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:05:28,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [314178935] [2025-02-08 06:05:28,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [314178935] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:05:28,367 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:05:28,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 06:05:28,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259400787] [2025-02-08 06:05:28,368 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:05:28,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 06:05:28,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:05:28,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 06:05:28,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 06:05:28,369 INFO L87 Difference]: Start difference. First operand 408 states and 491 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:05:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:05:28,626 INFO L93 Difference]: Finished difference Result 416 states and 501 transitions. [2025-02-08 06:05:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 06:05:28,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 246 [2025-02-08 06:05:28,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:05:28,629 INFO L225 Difference]: With dead ends: 416 [2025-02-08 06:05:28,629 INFO L226 Difference]: Without dead ends: 414 [2025-02-08 06:05:28,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-08 06:05:28,630 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 6 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:05:28,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1075 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:05:28,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2025-02-08 06:05:28,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2025-02-08 06:05:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 391 states have (on average 1.1943734015345269) internal successors, (467), 402 states have internal predecessors, (467), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-08 06:05:28,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 493 transitions. [2025-02-08 06:05:28,638 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 493 transitions. Word has length 246 [2025-02-08 06:05:28,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:05:28,638 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 493 transitions. [2025-02-08 06:05:28,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 states have internal predecessors, (123), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:05:28,639 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 493 transitions. [2025-02-08 06:05:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2025-02-08 06:05:28,640 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:05:28,640 INFO L218 NwaCegarLoop]: trace histogram [10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:05:28,673 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 06:05:28,845 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 06:05:28,845 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:05:28,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:05:28,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1384077756, now seen corresponding path program 3 times [2025-02-08 06:05:28,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:05:28,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [916932454] [2025-02-08 06:05:28,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 06:05:28,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:05:28,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:05:28,849 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 06:05:28,851 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 06:05:29,349 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 250 statements into 9 equivalence classes.