./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.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 c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:04:04,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:04:04,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-01-09 22:04:04,748 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:04:04,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:04:04,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:04:04,770 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:04:04,770 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:04:04,771 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:04:04,771 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:04:04,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:04:04,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:04:04,772 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:04:04,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:04:04,772 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:04:04,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:04:04,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 22:04:04,774 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:04:04,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:04:04,774 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:04:04,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 22:04:04,774 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:04:04,774 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:04:04,774 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:04:04,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:04,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:04,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:04:04,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:04:04,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:04:04,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:04:04,776 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 -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2025-01-09 22:04:05,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:04:05,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:04:05,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:04:05,016 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:04:05,017 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:04:05,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2025-01-09 22:04:06,186 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd40df548/7224574a57da4739a35abe5f7498c8c8/FLAGff713e1a0 [2025-01-09 22:04:06,510 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:04:06,510 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2025-01-09 22:04:06,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd40df548/7224574a57da4739a35abe5f7498c8c8/FLAGff713e1a0 [2025-01-09 22:04:06,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/dd40df548/7224574a57da4739a35abe5f7498c8c8 [2025-01-09 22:04:06,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:04:06,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:04:06,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:06,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:04:06,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:04:06,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:06" (1/1) ... [2025-01-09 22:04:06,553 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1217c1a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:06, skipping insertion in model container [2025-01-09 22:04:06,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:06" (1/1) ... [2025-01-09 22:04:06,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:04:06,843 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,876 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,879 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,881 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,885 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,908 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,910 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,914 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,917 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,923 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,924 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,925 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,926 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,927 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,927 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,931 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,932 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,933 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,933 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,935 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:06,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:06,954 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) [2025-01-09 22:04:06,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43143aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:06, skipping insertion in model container [2025-01-09 22:04:06,954 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:06,954 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-09 22:04:06,955 INFO L158 Benchmark]: Toolchain (without parser) took 408.39ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 90.3MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 22:04:06,956 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:04:06,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.42ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 90.3MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 22:04:06,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.42ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 90.3MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 769]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.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 c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:04:08,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:04:08,664 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-01-09 22:04:08,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:04:08,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:04:08,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:04:08,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:04:08,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:04:08,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:04:08,689 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:04:08,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:04:08,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:04:08,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:04:08,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:04:08,690 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:04:08,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:04:08,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 22:04:08,690 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:04:08,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:04:08,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:04:08,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:04:08,691 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:04:08,692 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:08,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:08,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:04:08,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:04:08,693 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 22:04:08,693 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 22:04:08,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:04:08,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:04:08,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:04:08,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:04:08,693 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 -> c24ad121bcc9573550d02da9627a07166858762ae4177dec26b10c884148a83b [2025-01-09 22:04:08,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:04:08,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:04:08,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:04:08,898 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:04:08,899 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:04:08,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2025-01-09 22:04:10,040 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a00d4c6c6/da3a17efda654c11a95d7fb236f3b0c4/FLAGc271cbf48 [2025-01-09 22:04:10,316 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:04:10,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-3.i [2025-01-09 22:04:10,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a00d4c6c6/da3a17efda654c11a95d7fb236f3b0c4/FLAGc271cbf48 [2025-01-09 22:04:10,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a00d4c6c6/da3a17efda654c11a95d7fb236f3b0c4 [2025-01-09 22:04:10,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:04:10,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:04:10,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:10,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:04:10,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:04:10,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:10" (1/1) ... [2025-01-09 22:04:10,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a24c1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:10, skipping insertion in model container [2025-01-09 22:04:10,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:10" (1/1) ... [2025-01-09 22:04:10,644 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:04:10,894 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,929 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,932 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,936 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,941 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,966 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,967 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,969 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,972 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,980 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,981 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,983 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,984 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,984 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,985 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,988 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,989 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,989 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,989 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,992 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:10,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:11,005 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-09 22:04:11,017 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:04:11,051 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,070 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,071 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,073 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,075 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,086 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,087 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,088 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,095 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,100 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,103 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,104 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,104 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,105 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,113 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,114 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,114 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,115 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,116 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:11,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:11,124 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 22:04:11,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:11,219 INFO L204 MainTranslator]: Completed translation [2025-01-09 22:04:11,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11 WrapperNode [2025-01-09 22:04:11,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:11,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 22:04:11,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 22:04:11,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 22:04:11,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,308 INFO L138 Inliner]: procedures = 179, calls = 435, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1414 [2025-01-09 22:04:11,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 22:04:11,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 22:04:11,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 22:04:11,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 22:04:11,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,405 INFO L175 MemorySlicer]: Split 403 memory accesses to 2 slices as follows [2, 401]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 98 writes are split as follows [0, 98]. [2025-01-09 22:04:11,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,452 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 22:04:11,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 22:04:11,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 22:04:11,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 22:04:11,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (1/1) ... [2025-01-09 22:04:11,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:11,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:11,524 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) [2025-01-09 22:04:11,526 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 [2025-01-09 22:04:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-09 22:04:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-09 22:04:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 22:04:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 22:04:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 22:04:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-01-09 22:04:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-01-09 22:04:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 22:04:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 22:04:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 22:04:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 22:04:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 22:04:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 22:04:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 22:04:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 22:04:11,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 22:04:11,769 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 22:04:11,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 22:04:24,378 INFO L? ?]: Removed 207 outVars from TransFormulas that were not future-live. [2025-01-09 22:04:24,378 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 22:04:24,387 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 22:04:24,387 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2025-01-09 22:04:24,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:04:24 BoogieIcfgContainer [2025-01-09 22:04:24,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 22:04:24,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 22:04:24,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 22:04:24,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 22:04:24,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:04:10" (1/3) ... [2025-01-09 22:04:24,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e403099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:04:24, skipping insertion in model container [2025-01-09 22:04:24,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:11" (2/3) ... [2025-01-09 22:04:24,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e403099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:04:24, skipping insertion in model container [2025-01-09 22:04:24,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:04:24" (3/3) ... [2025-01-09 22:04:24,394 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-3.i [2025-01-09 22:04:24,404 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 22:04:24,405 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test4-3.i that has 4 procedures, 269 locations, 1 initial locations, 45 loop locations, and 2 error locations. [2025-01-09 22:04:24,430 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 22:04:24,437 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;@42d18dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 22:04:24,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 22:04:24,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 244 states have (on average 1.651639344262295) internal successors, (403), 256 states have internal predecessors, (403), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 22:04:24,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-09 22:04:24,446 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:24,447 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:24,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:24,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:24,451 INFO L85 PathProgramCache]: Analyzing trace with hash -324519729, now seen corresponding path program 1 times [2025-01-09 22:04:24,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:24,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027670433] [2025-01-09 22:04:24,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:24,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:24,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:24,459 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) [2025-01-09 22:04:24,460 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 [2025-01-09 22:04:24,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-09 22:04:24,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-09 22:04:24,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:24,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:24,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 22:04:24,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:24,656 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:24,657 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:24,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027670433] [2025-01-09 22:04:24,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027670433] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:24,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:24,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 22:04:24,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877606985] [2025-01-09 22:04:24,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:24,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:04:24,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:24,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:04:24,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:24,677 INFO L87 Difference]: Start difference. First operand has 265 states, 244 states have (on average 1.651639344262295) internal successors, (403), 256 states have internal predecessors, (403), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-01-09 22:04:28,775 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 [] [2025-01-09 22:04:32,820 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 [] [2025-01-09 22:04:32,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:32,972 INFO L93 Difference]: Finished difference Result 339 states and 470 transitions. [2025-01-09 22:04:32,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:04:32,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2025-01-09 22:04:32,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:32,985 INFO L225 Difference]: With dead ends: 339 [2025-01-09 22:04:32,985 INFO L226 Difference]: Without dead ends: 336 [2025-01-09 22:04:32,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:32,988 INFO L435 NwaCegarLoop]: 386 mSDtfsCounter, 85 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:32,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 715 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2025-01-09 22:04:32,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2025-01-09 22:04:33,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 289. [2025-01-09 22:04:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 259 states have (on average 1.3552123552123552) internal successors, (351), 280 states have internal predecessors, (351), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 8 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 22:04:33,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2025-01-09 22:04:33,026 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 8 [2025-01-09 22:04:33,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:33,026 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2025-01-09 22:04:33,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-01-09 22:04:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2025-01-09 22:04:33,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 22:04:33,027 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:33,027 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:33,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 22:04:33,233 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 [2025-01-09 22:04:33,233 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:33,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:33,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1569614576, now seen corresponding path program 1 times [2025-01-09 22:04:33,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:33,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718975095] [2025-01-09 22:04:33,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:33,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:33,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:33,237 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) [2025-01-09 22:04:33,238 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 [2025-01-09 22:04:33,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 22:04:33,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 22:04:33,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:33,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:33,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:04:33,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:33,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:33,444 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:33,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:33,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718975095] [2025-01-09 22:04:33,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718975095] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:33,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:33,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:04:33,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485314485] [2025-01-09 22:04:33,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:33,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:04:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:33,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:04:33,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:33,446 INFO L87 Difference]: Start difference. First operand 289 states and 403 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-01-09 22:04:37,842 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 [] [2025-01-09 22:04:42,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:04:48,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:04:49,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:04:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:49,192 INFO L93 Difference]: Finished difference Result 389 states and 520 transitions. [2025-01-09 22:04:49,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:04:49,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 10 [2025-01-09 22:04:49,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:49,197 INFO L225 Difference]: With dead ends: 389 [2025-01-09 22:04:49,197 INFO L226 Difference]: Without dead ends: 389 [2025-01-09 22:04:49,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:49,197 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 154 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:49,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 982 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2025-01-09 22:04:49,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2025-01-09 22:04:49,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2025-01-09 22:04:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 366 states have (on average 1.3169398907103824) internal successors, (482), 377 states have internal predecessors, (482), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:04:49,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 520 transitions. [2025-01-09 22:04:49,213 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 520 transitions. Word has length 10 [2025-01-09 22:04:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:49,213 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 520 transitions. [2025-01-09 22:04:49,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-01-09 22:04:49,213 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 520 transitions. [2025-01-09 22:04:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-09 22:04:49,214 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:49,214 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:49,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 22:04:49,418 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 [2025-01-09 22:04:49,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:49,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2039460058, now seen corresponding path program 1 times [2025-01-09 22:04:49,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:49,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1809487194] [2025-01-09 22:04:49,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:49,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:49,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:49,421 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) [2025-01-09 22:04:49,421 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 [2025-01-09 22:04:49,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-09 22:04:49,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-09 22:04:49,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:49,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:49,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 22:04:49,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:49,561 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:49,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:49,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809487194] [2025-01-09 22:04:49,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809487194] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:49,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:49,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:04:49,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565624029] [2025-01-09 22:04:49,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:49,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:04:49,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:49,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:04:49,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:49,562 INFO L87 Difference]: Start difference. First operand 389 states and 520 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2025-01-09 22:04:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:49,586 INFO L93 Difference]: Finished difference Result 390 states and 521 transitions. [2025-01-09 22:04:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:04:49,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2025-01-09 22:04:49,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:49,588 INFO L225 Difference]: With dead ends: 390 [2025-01-09 22:04:49,588 INFO L226 Difference]: Without dead ends: 390 [2025-01-09 22:04:49,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:49,588 INFO L435 NwaCegarLoop]: 352 mSDtfsCounter, 0 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:49,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 699 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:04:49,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-01-09 22:04:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2025-01-09 22:04:49,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 367 states have (on average 1.3160762942779292) internal successors, (483), 378 states have internal predecessors, (483), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:04:49,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 521 transitions. [2025-01-09 22:04:49,603 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 521 transitions. Word has length 22 [2025-01-09 22:04:49,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:49,605 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 521 transitions. [2025-01-09 22:04:49,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2025-01-09 22:04:49,605 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 521 transitions. [2025-01-09 22:04:49,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-09 22:04:49,605 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:49,606 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:49,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 22:04:49,806 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 [2025-01-09 22:04:49,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:49,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:49,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1244389988, now seen corresponding path program 1 times [2025-01-09 22:04:49,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:49,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386324566] [2025-01-09 22:04:49,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:49,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:49,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:49,811 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) [2025-01-09 22:04:49,813 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 [2025-01-09 22:04:49,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-09 22:04:49,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-09 22:04:49,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:49,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:49,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:04:49,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:49,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 22:04:49,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:49,978 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:49,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386324566] [2025-01-09 22:04:49,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386324566] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:49,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:49,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:04:49,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489288010] [2025-01-09 22:04:49,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:49,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:04:49,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:49,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:04:49,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:49,979 INFO L87 Difference]: Start difference. First operand 390 states and 521 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2025-01-09 22:04:50,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:50,540 INFO L93 Difference]: Finished difference Result 441 states and 587 transitions. [2025-01-09 22:04:50,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:04:50,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2025-01-09 22:04:50,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:50,546 INFO L225 Difference]: With dead ends: 441 [2025-01-09 22:04:50,546 INFO L226 Difference]: Without dead ends: 441 [2025-01-09 22:04:50,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:50,547 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 118 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:50,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 673 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 22:04:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2025-01-09 22:04:50,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 388. [2025-01-09 22:04:50,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 365 states have (on average 1.3123287671232877) internal successors, (479), 376 states have internal predecessors, (479), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:04:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 517 transitions. [2025-01-09 22:04:50,556 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 517 transitions. Word has length 22 [2025-01-09 22:04:50,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:50,556 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 517 transitions. [2025-01-09 22:04:50,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2025-01-09 22:04:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 517 transitions. [2025-01-09 22:04:50,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-09 22:04:50,557 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:50,557 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:50,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 22:04:50,757 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 [2025-01-09 22:04:50,758 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:50,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:50,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1056432602, now seen corresponding path program 1 times [2025-01-09 22:04:50,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:50,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309684620] [2025-01-09 22:04:50,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:50,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:50,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:50,760 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) [2025-01-09 22:04:50,762 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 [2025-01-09 22:04:50,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-01-09 22:04:50,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-01-09 22:04:50,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:50,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:50,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:04:50,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:50,955 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:50,955 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:50,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309684620] [2025-01-09 22:04:50,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309684620] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:50,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:50,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:04:50,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272269004] [2025-01-09 22:04:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:50,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:04:50,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:50,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:04:50,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:50,956 INFO L87 Difference]: Start difference. First operand 388 states and 517 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2025-01-09 22:04:55,157 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 [] [2025-01-09 22:04:59,430 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 [] [2025-01-09 22:05:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:01,640 INFO L93 Difference]: Finished difference Result 441 states and 586 transitions. [2025-01-09 22:05:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:05:01,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2025-01-09 22:05:01,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:01,643 INFO L225 Difference]: With dead ends: 441 [2025-01-09 22:05:01,643 INFO L226 Difference]: Without dead ends: 437 [2025-01-09 22:05:01,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:05:01,644 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 120 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2025-01-09 22:05:01,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1014 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2025-01-09 22:05:01,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2025-01-09 22:05:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 384. [2025-01-09 22:05:01,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 361 states have (on average 1.3130193905817173) internal successors, (474), 372 states have internal predecessors, (474), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:05:01,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 512 transitions. [2025-01-09 22:05:01,656 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 512 transitions. Word has length 22 [2025-01-09 22:05:01,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:01,656 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 512 transitions. [2025-01-09 22:05:01,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2025-01-09 22:05:01,657 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 512 transitions. [2025-01-09 22:05:01,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 22:05:01,659 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:01,660 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:01,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 22:05:01,860 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 [2025-01-09 22:05:01,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:01,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash -198979941, now seen corresponding path program 1 times [2025-01-09 22:05:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054914672] [2025-01-09 22:05:01,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:01,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:01,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:01,863 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) [2025-01-09 22:05:01,864 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 [2025-01-09 22:05:02,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 22:05:02,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 22:05:02,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:02,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:02,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:05:02,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 22:05:02,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:05:02,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:02,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054914672] [2025-01-09 22:05:02,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054914672] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:05:02,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:05:02,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:05:02,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442764887] [2025-01-09 22:05:02,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:05:02,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:05:02,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:02,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:05:02,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:05:02,338 INFO L87 Difference]: Start difference. First operand 384 states and 512 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 22:05:02,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:02,467 INFO L93 Difference]: Finished difference Result 424 states and 552 transitions. [2025-01-09 22:05:02,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:05:02,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2025-01-09 22:05:02,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:02,474 INFO L225 Difference]: With dead ends: 424 [2025-01-09 22:05:02,474 INFO L226 Difference]: Without dead ends: 424 [2025-01-09 22:05:02,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:05:02,475 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 7 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 653 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 [2025-01-09 22:05:02,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 653 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:05:02,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2025-01-09 22:05:02,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2025-01-09 22:05:02,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 401 states have (on average 1.2817955112219452) internal successors, (514), 412 states have internal predecessors, (514), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:05:02,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 552 transitions. [2025-01-09 22:05:02,487 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 552 transitions. Word has length 142 [2025-01-09 22:05:02,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:02,488 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 552 transitions. [2025-01-09 22:05:02,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 22:05:02,488 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 552 transitions. [2025-01-09 22:05:02,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 22:05:02,491 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:02,491 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:02,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 22:05:02,691 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 [2025-01-09 22:05:02,692 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:02,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2127912167, now seen corresponding path program 1 times [2025-01-09 22:05:02,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:02,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994011638] [2025-01-09 22:05:02,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:02,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:02,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:02,694 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) [2025-01-09 22:05:02,696 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 [2025-01-09 22:05:02,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 22:05:03,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 22:05:03,144 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:03,144 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:03,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:05:03,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-09 22:05:03,197 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:05:03,197 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:03,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994011638] [2025-01-09 22:05:03,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994011638] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:05:03,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:05:03,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:05:03,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473173289] [2025-01-09 22:05:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:05:03,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:05:03,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:03,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:05:03,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:05:03,200 INFO L87 Difference]: Start difference. First operand 424 states and 552 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:05:03,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:03,327 INFO L93 Difference]: Finished difference Result 464 states and 592 transitions. [2025-01-09 22:05:03,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:05:03,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 142 [2025-01-09 22:05:03,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:03,329 INFO L225 Difference]: With dead ends: 464 [2025-01-09 22:05:03,329 INFO L226 Difference]: Without dead ends: 464 [2025-01-09 22:05:03,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:05:03,330 INFO L435 NwaCegarLoop]: 333 mSDtfsCounter, 8 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 651 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 [2025-01-09 22:05:03,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 651 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:05:03,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2025-01-09 22:05:03,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2025-01-09 22:05:03,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 441 states have (on average 1.256235827664399) internal successors, (554), 452 states have internal predecessors, (554), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:05:03,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 592 transitions. [2025-01-09 22:05:03,340 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 592 transitions. Word has length 142 [2025-01-09 22:05:03,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:03,341 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 592 transitions. [2025-01-09 22:05:03,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:05:03,342 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 592 transitions. [2025-01-09 22:05:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 22:05:03,343 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:03,343 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:03,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 22:05:03,543 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 [2025-01-09 22:05:03,543 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:03,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:03,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1965231195, now seen corresponding path program 1 times [2025-01-09 22:05:03,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:03,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25955165] [2025-01-09 22:05:03,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:03,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:03,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:03,547 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) [2025-01-09 22:05:03,549 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 [2025-01-09 22:05:03,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 22:05:04,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 22:05:04,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:04,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:04,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:05:04,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:04,456 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 22:05:04,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:05:04,456 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:04,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25955165] [2025-01-09 22:05:04,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25955165] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:05:04,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:05:04,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:05:04,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572522857] [2025-01-09 22:05:04,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:05:04,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:05:04,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:04,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:05:04,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:05:04,458 INFO L87 Difference]: Start difference. First operand 464 states and 592 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 22:05:08,775 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 [] [2025-01-09 22:05:12,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:05:17,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:05:21,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:05:28,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 22:05:28,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:28,671 INFO L93 Difference]: Finished difference Result 487 states and 634 transitions. [2025-01-09 22:05:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:05:28,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2025-01-09 22:05:28,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:28,674 INFO L225 Difference]: With dead ends: 487 [2025-01-09 22:05:28,674 INFO L226 Difference]: Without dead ends: 487 [2025-01-09 22:05:28,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:05:28,674 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 325 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2025-01-09 22:05:28,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 828 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 5 Unknown, 0 Unchecked, 24.2s Time] [2025-01-09 22:05:28,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2025-01-09 22:05:28,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 465. [2025-01-09 22:05:28,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 442 states have (on average 1.253393665158371) internal successors, (554), 453 states have internal predecessors, (554), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:05:28,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 592 transitions. [2025-01-09 22:05:28,688 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 592 transitions. Word has length 142 [2025-01-09 22:05:28,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:28,688 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 592 transitions. [2025-01-09 22:05:28,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 22:05:28,689 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 592 transitions. [2025-01-09 22:05:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-09 22:05:28,689 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:28,690 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:28,704 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 [2025-01-09 22:05:28,890 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 [2025-01-09 22:05:28,890 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:28,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:28,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1297970308, now seen corresponding path program 1 times [2025-01-09 22:05:28,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:28,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068233160] [2025-01-09 22:05:28,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:28,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:28,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:28,893 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) [2025-01-09 22:05:28,894 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 [2025-01-09 22:05:29,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 22:05:29,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 22:05:29,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:29,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:29,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:05:29,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-09 22:05:29,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:05:29,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:29,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068233160] [2025-01-09 22:05:29,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068233160] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:05:29,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:05:29,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:05:29,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983858962] [2025-01-09 22:05:29,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:05:29,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:05:29,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:29,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:05:29,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:05:29,373 INFO L87 Difference]: Start difference. First operand 465 states and 592 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:05:29,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:29,479 INFO L93 Difference]: Finished difference Result 431 states and 536 transitions. [2025-01-09 22:05:29,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:05:29,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 144 [2025-01-09 22:05:29,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:29,480 INFO L225 Difference]: With dead ends: 431 [2025-01-09 22:05:29,480 INFO L226 Difference]: Without dead ends: 431 [2025-01-09 22:05:29,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:05:29,481 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 32 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 949 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 [2025-01-09 22:05:29,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 949 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:05:29,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2025-01-09 22:05:29,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2025-01-09 22:05:29,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 408 states have (on average 1.2205882352941178) internal successors, (498), 419 states have internal predecessors, (498), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:05:29,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 536 transitions. [2025-01-09 22:05:29,490 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 536 transitions. Word has length 144 [2025-01-09 22:05:29,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:29,490 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 536 transitions. [2025-01-09 22:05:29,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:05:29,490 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 536 transitions. [2025-01-09 22:05:29,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-09 22:05:29,491 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:29,491 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:29,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 22:05:29,692 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 [2025-01-09 22:05:29,692 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:29,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:29,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2092892590, now seen corresponding path program 1 times [2025-01-09 22:05:29,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:29,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [250782536] [2025-01-09 22:05:29,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:29,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:29,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:29,695 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) [2025-01-09 22:05:29,695 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 [2025-01-09 22:05:30,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 22:05:30,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 22:05:30,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:30,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:30,190 INFO L256 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:05:30,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 22:05:30,231 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:05:30,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:30,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250782536] [2025-01-09 22:05:30,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250782536] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:05:30,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:05:30,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 22:05:30,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267678016] [2025-01-09 22:05:30,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:05:30,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 22:05:30,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:30,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 22:05:30,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:05:30,233 INFO L87 Difference]: Start difference. First operand 431 states and 536 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 22:05:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:30,311 INFO L93 Difference]: Finished difference Result 397 states and 480 transitions. [2025-01-09 22:05:30,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:05:30,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 144 [2025-01-09 22:05:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:30,313 INFO L225 Difference]: With dead ends: 397 [2025-01-09 22:05:30,313 INFO L226 Difference]: Without dead ends: 397 [2025-01-09 22:05:30,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:05:30,313 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 37 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:05:30,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 916 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:05:30,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2025-01-09 22:05:30,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2025-01-09 22:05:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 374 states have (on average 1.1818181818181819) internal successors, (442), 385 states have internal predecessors, (442), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 10 states have call predecessors, (19), 19 states have call successors, (19) [2025-01-09 22:05:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 480 transitions. [2025-01-09 22:05:30,320 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 480 transitions. Word has length 144 [2025-01-09 22:05:30,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:30,320 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 480 transitions. [2025-01-09 22:05:30,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 5 states have internal predecessors, (126), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-01-09 22:05:30,320 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 480 transitions. [2025-01-09 22:05:30,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-01-09 22:05:30,321 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:30,321 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:30,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-09 22:05:30,522 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 [2025-01-09 22:05:30,522 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:30,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash 684165946, now seen corresponding path program 1 times [2025-01-09 22:05:30,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:30,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1517372774] [2025-01-09 22:05:30,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:30,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:30,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:30,525 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) [2025-01-09 22:05:30,526 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 [2025-01-09 22:05:30,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 22:05:30,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 22:05:30,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:30,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:30,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:05:30,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 22:05:31,018 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:05:31,019 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:31,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517372774] [2025-01-09 22:05:31,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517372774] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:05:31,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:05:31,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:05:31,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963339730] [2025-01-09 22:05:31,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:05:31,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:05:31,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:31,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:05:31,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:05:31,020 INFO L87 Difference]: Start difference. First operand 397 states and 480 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:05:31,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:31,074 INFO L93 Difference]: Finished difference Result 400 states and 486 transitions. [2025-01-09 22:05:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:05:31,074 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 144 [2025-01-09 22:05:31,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:31,076 INFO L225 Difference]: With dead ends: 400 [2025-01-09 22:05:31,076 INFO L226 Difference]: Without dead ends: 400 [2025-01-09 22:05:31,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:05:31,076 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 0 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:05:31,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 974 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:05:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2025-01-09 22:05:31,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2025-01-09 22:05:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 376 states have (on average 1.1835106382978724) internal successors, (445), 388 states have internal predecessors, (445), 19 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (22), 10 states have call predecessors, (22), 19 states have call successors, (22) [2025-01-09 22:05:31,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 486 transitions. [2025-01-09 22:05:31,083 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 486 transitions. Word has length 144 [2025-01-09 22:05:31,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:31,083 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 486 transitions. [2025-01-09 22:05:31,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 22:05:31,083 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 486 transitions. [2025-01-09 22:05:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 22:05:31,084 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:31,084 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:31,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-09 22:05:31,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:31,288 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:31,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash 521217146, now seen corresponding path program 1 times [2025-01-09 22:05:31,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:31,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224982362] [2025-01-09 22:05:31,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:31,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:31,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:31,290 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:05:31,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 22:05:31,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 22:05:31,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 22:05:31,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:31,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:31,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:05:31,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 22:05:32,018 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:05:32,412 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 22:05:32,412 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:32,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224982362] [2025-01-09 22:05:32,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224982362] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:05:32,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:05:32,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-01-09 22:05:32,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424416353] [2025-01-09 22:05:32,412 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:05:32,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 22:05:32,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:32,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 22:05:32,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-01-09 22:05:32,414 INFO L87 Difference]: Start difference. First operand 400 states and 486 transitions. Second operand has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-01-09 22:05:32,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:32,803 INFO L93 Difference]: Finished difference Result 777 states and 933 transitions. [2025-01-09 22:05:32,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 22:05:32,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 148 [2025-01-09 22:05:32,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:32,806 INFO L225 Difference]: With dead ends: 777 [2025-01-09 22:05:32,806 INFO L226 Difference]: Without dead ends: 777 [2025-01-09 22:05:32,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-01-09 22:05:32,807 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 632 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 22:05:32,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1822 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 22:05:32,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2025-01-09 22:05:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2025-01-09 22:05:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 744 states have (on average 1.168010752688172) internal successors, (869), 756 states have internal predecessors, (869), 28 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (36), 19 states have call predecessors, (36), 28 states have call successors, (36) [2025-01-09 22:05:32,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 933 transitions. [2025-01-09 22:05:32,819 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 933 transitions. Word has length 148 [2025-01-09 22:05:32,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:32,820 INFO L471 AbstractCegarLoop]: Abstraction has 777 states and 933 transitions. [2025-01-09 22:05:32,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 states have internal predecessors, (243), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-01-09 22:05:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 933 transitions. [2025-01-09 22:05:32,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2025-01-09 22:05:32,824 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:32,824 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, 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, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:32,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-09 22:05:33,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:33,025 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:33,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:33,025 INFO L85 PathProgramCache]: Analyzing trace with hash 680917173, now seen corresponding path program 1 times [2025-01-09 22:05:33,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:33,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078748208] [2025-01-09 22:05:33,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:05:33,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:33,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:33,029 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:05:33,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-09 22:05:33,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 460 statements into 1 equivalence classes. [2025-01-09 22:05:34,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 460 of 460 statements. [2025-01-09 22:05:34,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:05:34,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:34,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 2265 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:05:34,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 143 proven. 1 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2025-01-09 22:05:34,251 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:05:34,387 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 115 proven. 13 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2025-01-09 22:05:34,387 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:34,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078748208] [2025-01-09 22:05:34,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078748208] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:05:34,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:05:34,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-09 22:05:34,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626648708] [2025-01-09 22:05:34,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:05:34,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 22:05:34,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:34,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 22:05:34,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 22:05:34,390 INFO L87 Difference]: Start difference. First operand 777 states and 933 transitions. Second operand has 8 states, 8 states have (on average 22.5) internal successors, (180), 8 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 22:05:34,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:34,521 INFO L93 Difference]: Finished difference Result 788 states and 964 transitions. [2025-01-09 22:05:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 22:05:34,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 8 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 460 [2025-01-09 22:05:34,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:34,525 INFO L225 Difference]: With dead ends: 788 [2025-01-09 22:05:34,525 INFO L226 Difference]: Without dead ends: 788 [2025-01-09 22:05:34,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 921 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-09 22:05:34,526 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 5 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:05:34,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 970 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:05:34,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2025-01-09 22:05:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 786. [2025-01-09 22:05:34,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 752 states have (on average 1.1742021276595744) internal successors, (883), 764 states have internal predecessors, (883), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (44), 19 states have call predecessors, (44), 28 states have call successors, (44) [2025-01-09 22:05:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 955 transitions. [2025-01-09 22:05:34,544 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 955 transitions. Word has length 460 [2025-01-09 22:05:34,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:34,544 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 955 transitions. [2025-01-09 22:05:34,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.5) internal successors, (180), 8 states have internal predecessors, (180), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-01-09 22:05:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 955 transitions. [2025-01-09 22:05:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2025-01-09 22:05:34,550 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:34,550 INFO L218 NwaCegarLoop]: trace histogram [12, 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, 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, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:34,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-09 22:05:34,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:34,754 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:34,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash 980424117, now seen corresponding path program 2 times [2025-01-09 22:05:34,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:34,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610727821] [2025-01-09 22:05:34,756 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 22:05:34,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:34,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:34,758 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:05:34,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-09 22:05:35,314 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 468 statements into 2 equivalence classes. [2025-01-09 22:05:35,899 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 468 of 468 statements. [2025-01-09 22:05:35,900 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 22:05:35,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:05:35,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 2353 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 22:05:35,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:05:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 157 proven. 3 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2025-01-09 22:05:36,053 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:05:36,218 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 109 proven. 48 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2025-01-09 22:05:36,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:05:36,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610727821] [2025-01-09 22:05:36,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610727821] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:05:36,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:05:36,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-01-09 22:05:36,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254621948] [2025-01-09 22:05:36,219 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:05:36,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 22:05:36,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:05:36,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 22:05:36,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-01-09 22:05:36,221 INFO L87 Difference]: Start difference. First operand 786 states and 955 transitions. Second operand has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-01-09 22:05:36,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:05:36,533 INFO L93 Difference]: Finished difference Result 794 states and 965 transitions. [2025-01-09 22:05:36,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-09 22:05:36,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 468 [2025-01-09 22:05:36,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:05:36,536 INFO L225 Difference]: With dead ends: 794 [2025-01-09 22:05:36,536 INFO L226 Difference]: Without dead ends: 792 [2025-01-09 22:05:36,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 939 GetRequests, 926 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-01-09 22:05:36,536 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 6 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 22:05:36,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1299 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 22:05:36,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2025-01-09 22:05:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 790. [2025-01-09 22:05:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 756 states have (on average 1.1759259259259258) internal successors, (889), 768 states have internal predecessors, (889), 28 states have call successors, (28), 3 states have call predecessors, (28), 4 states have return successors, (36), 19 states have call predecessors, (36), 28 states have call successors, (36) [2025-01-09 22:05:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 953 transitions. [2025-01-09 22:05:36,549 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 953 transitions. Word has length 468 [2025-01-09 22:05:36,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:05:36,549 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 953 transitions. [2025-01-09 22:05:36,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.2) internal successors, (182), 10 states have internal predecessors, (182), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-01-09 22:05:36,550 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 953 transitions. [2025-01-09 22:05:36,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2025-01-09 22:05:36,553 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:05:36,553 INFO L218 NwaCegarLoop]: trace histogram [20, 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, 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, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:05:36,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-09 22:05:36,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:36,754 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:05:36,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:05:36,754 INFO L85 PathProgramCache]: Analyzing trace with hash 972848949, now seen corresponding path program 3 times [2025-01-09 22:05:36,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:05:36,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938690682] [2025-01-09 22:05:36,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 22:05:36,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:05:36,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:05:36,758 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:05:36,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-09 22:05:37,322 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 476 statements into 16 equivalence classes.