./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.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 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:55:04,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:55:04,666 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:55:04,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:55:04,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:55:04,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:55:04,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:55:04,682 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:55:04,682 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:55:04,682 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:55:04,682 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:55:04,683 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:55:04,683 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:55:04,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:55:04,684 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:55:04,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:55:04,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:55:04,684 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 -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2025-02-06 09:55:04,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:55:04,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:55:04,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:55:04,875 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:55:04,875 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:55:04,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2025-02-06 09:55:06,004 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53e936103/4635685a8fbe4bc6ba26f0e22a51ad12/FLAGef8e7972a [2025-02-06 09:55:06,348 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:55:06,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2025-02-06 09:55:06,358 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53e936103/4635685a8fbe4bc6ba26f0e22a51ad12/FLAGef8e7972a [2025-02-06 09:55:06,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/53e936103/4635685a8fbe4bc6ba26f0e22a51ad12 [2025-02-06 09:55:06,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:55:06,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:55:06,588 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:55:06,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:55:06,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:55:06,592 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:55:06" (1/1) ... [2025-02-06 09:55:06,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799a23ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:06, skipping insertion in model container [2025-02-06 09:55:06,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:55:06" (1/1) ... [2025-02-06 09:55:06,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:55:06,908 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,937 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,939 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,941 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,946 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,982 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,982 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,984 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,984 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,985 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,986 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,988 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,990 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,993 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:06,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:55:07,010 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 09:55:07,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@17c36064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:07, skipping insertion in model container [2025-02-06 09:55:07,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:55:07,011 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:55:07,012 INFO L158 Benchmark]: Toolchain (without parser) took 424.95ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 83.6MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:55:07,012 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 226.5MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:55:07,013 INFO L158 Benchmark]: CACSL2BoogieTranslator took 422.72ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 83.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:55:07,017 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 226.5MB. Free memory is still 142.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 422.72ms. Allocated memory is still 142.6MB. Free memory was 102.0MB in the beginning and 83.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.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 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:55:09,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:55:09,098 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:55:09,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:55:09,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:55:09,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:55:09,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:55:09,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:55:09,169 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:55:09,169 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:55:09,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:55:09,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:55:09,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:55:09,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:55:09,171 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:55:09,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:55:09,171 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:55:09,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:55:09,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:55:09,175 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:55:09,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:55:09,175 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 -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2025-02-06 09:55:09,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:55:09,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:55:09,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:55:09,425 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:55:09,426 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:55:09,426 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2025-02-06 09:55:10,598 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9759d2e0/bf23f45913c6443f9d610e9a564a4469/FLAG1145da910 [2025-02-06 09:55:10,913 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:55:10,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2025-02-06 09:55:10,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9759d2e0/bf23f45913c6443f9d610e9a564a4469/FLAG1145da910 [2025-02-06 09:55:10,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d9759d2e0/bf23f45913c6443f9d610e9a564a4469 [2025-02-06 09:55:10,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:55:10,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:55:10,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:55:10,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:55:10,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:55:10,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:55:10" (1/1) ... [2025-02-06 09:55:10,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117d3747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:10, skipping insertion in model container [2025-02-06 09:55:10,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:55:10" (1/1) ... [2025-02-06 09:55:10,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:55:11,235 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,258 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,261 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,263 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,270 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,307 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,307 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,312 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,312 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,314 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,315 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,316 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,318 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,323 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:55:11,335 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:55:11,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:55:11,382 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,401 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,403 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,404 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,411 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,436 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,436 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,437 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,437 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,438 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,443 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,443 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,443 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,445 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:55:11,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:55:11,454 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:55:11,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:55:11,537 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:55:11,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11 WrapperNode [2025-02-06 09:55:11,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:55:11,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:55:11,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:55:11,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:55:11,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,562 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,595 INFO L138 Inliner]: procedures = 179, calls = 272, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 973 [2025-02-06 09:55:11,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:55:11,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:55:11,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:55:11,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:55:11,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,610 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,656 INFO L175 MemorySlicer]: Split 253 memory accesses to 3 slices as follows [2, 217, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-02-06 09:55:11,660 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,661 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,696 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:55:11,711 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:55:11,711 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:55:11,712 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:55:11,712 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (1/1) ... [2025-02-06 09:55:11,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:55:11,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:11,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:55:11,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:55:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 09:55:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 09:55:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 09:55:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 09:55:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 09:55:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:55:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:55:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 09:55:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 09:55:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 09:55:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 09:55:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 09:55:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 09:55:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 09:55:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:55:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:55:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:55:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:55:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 09:55:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:55:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:55:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 09:55:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:55:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:55:11,925 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:55:11,926 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:55:18,581 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 09:55:18,634 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2025-02-06 09:55:18,635 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:55:18,646 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:55:18,647 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:55:18,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:55:18 BoogieIcfgContainer [2025-02-06 09:55:18,648 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:55:18,650 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:55:18,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:55:18,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:55:18,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:55:10" (1/3) ... [2025-02-06 09:55:18,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd2b5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:55:18, skipping insertion in model container [2025-02-06 09:55:18,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:55:11" (2/3) ... [2025-02-06 09:55:18,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cd2b5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:55:18, skipping insertion in model container [2025-02-06 09:55:18,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:55:18" (3/3) ... [2025-02-06 09:55:18,656 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-1.i [2025-02-06 09:55:18,675 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:55:18,676 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test7-1.i that has 5 procedures, 201 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-06 09:55:18,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:55:18,719 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;@3320f865, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:55:18,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:55:18,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 183 states have (on average 1.6557377049180328) internal successors, (303), 186 states have internal predecessors, (303), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 09:55:18,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 09:55:18,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:18,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:18,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:18,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:18,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2131869671, now seen corresponding path program 1 times [2025-02-06 09:55:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:18,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255814966] [2025-02-06 09:55:18,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:18,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:18,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:18,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:18,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:55:18,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 09:55:18,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 09:55:18,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:18,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:18,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 09:55:18,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:18,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:18,916 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:18,917 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:18,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255814966] [2025-02-06 09:55:18,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255814966] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:18,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:18,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:55:18,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46457882] [2025-02-06 09:55:18,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:18,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:55:18,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:18,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:55:18,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:55:18,939 INFO L87 Difference]: Start difference. First operand has 193 states, 183 states have (on average 1.6557377049180328) internal successors, (303), 186 states have internal predecessors, (303), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:18,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:18,961 INFO L93 Difference]: Finished difference Result 190 states and 245 transitions. [2025-02-06 09:55:18,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:55:18,962 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 [2025-02-06 09:55:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:18,967 INFO L225 Difference]: With dead ends: 190 [2025-02-06 09:55:18,968 INFO L226 Difference]: Without dead ends: 188 [2025-02-06 09:55:18,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:55:18,971 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:18,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:55:18,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2025-02-06 09:55:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2025-02-06 09:55:18,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 180 states have (on average 1.3055555555555556) internal successors, (235), 182 states have internal predecessors, (235), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 09:55:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 243 transitions. [2025-02-06 09:55:19,003 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 243 transitions. Word has length 8 [2025-02-06 09:55:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:19,003 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 243 transitions. [2025-02-06 09:55:19,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 243 transitions. [2025-02-06 09:55:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 09:55:19,004 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:19,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:19,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:19,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:19,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:19,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:19,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1766099573, now seen corresponding path program 1 times [2025-02-06 09:55:19,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:19,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076678052] [2025-02-06 09:55:19,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:19,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:19,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:19,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:19,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:55:19,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 09:55:19,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 09:55:19,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:19,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:19,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:55:19,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:19,343 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:19,344 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:19,344 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:19,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:55:19,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:19,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:55:19,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:19,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:19,435 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:19,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076678052] [2025-02-06 09:55:19,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076678052] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:19,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:19,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:19,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390776507] [2025-02-06 09:55:19,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:19,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:19,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:19,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:19,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:19,440 INFO L87 Difference]: Start difference. First operand 188 states and 243 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:19,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:19,845 INFO L93 Difference]: Finished difference Result 364 states and 475 transitions. [2025-02-06 09:55:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:19,846 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2025-02-06 09:55:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:19,847 INFO L225 Difference]: With dead ends: 364 [2025-02-06 09:55:19,847 INFO L226 Difference]: Without dead ends: 364 [2025-02-06 09:55:19,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:55:19,848 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 221 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:19,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 661 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 09:55:19,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2025-02-06 09:55:19,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 190. [2025-02-06 09:55:19,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 182 states have (on average 1.3021978021978022) internal successors, (237), 184 states have internal predecessors, (237), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 09:55:19,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 245 transitions. [2025-02-06 09:55:19,867 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 245 transitions. Word has length 10 [2025-02-06 09:55:19,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:19,867 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 245 transitions. [2025-02-06 09:55:19,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:19,867 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 245 transitions. [2025-02-06 09:55:19,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 09:55:19,868 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:19,868 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:19,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:20,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:20,070 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:20,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:20,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1474550230, now seen corresponding path program 1 times [2025-02-06 09:55:20,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:20,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688544577] [2025-02-06 09:55:20,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:20,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:20,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:20,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:20,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:55:20,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 09:55:20,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 09:55:20,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:20,351 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:20,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:55:20,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:20,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:20,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:20,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688544577] [2025-02-06 09:55:20,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688544577] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:20,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:20,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:55:20,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643974110] [2025-02-06 09:55:20,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:20,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:55:20,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:20,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:55:20,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:55:20,632 INFO L87 Difference]: Start difference. First operand 190 states and 245 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:21,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:21,098 INFO L93 Difference]: Finished difference Result 296 states and 385 transitions. [2025-02-06 09:55:21,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:55:21,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2025-02-06 09:55:21,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:21,100 INFO L225 Difference]: With dead ends: 296 [2025-02-06 09:55:21,100 INFO L226 Difference]: Without dead ends: 296 [2025-02-06 09:55:21,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:55:21,101 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 100 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:21,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 503 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 09:55:21,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2025-02-06 09:55:21,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 293. [2025-02-06 09:55:21,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 285 states have (on average 1.312280701754386) internal successors, (374), 287 states have internal predecessors, (374), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 09:55:21,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 382 transitions. [2025-02-06 09:55:21,118 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 382 transitions. Word has length 65 [2025-02-06 09:55:21,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:21,119 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 382 transitions. [2025-02-06 09:55:21,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:21,119 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 382 transitions. [2025-02-06 09:55:21,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-06 09:55:21,120 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:21,120 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:21,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:21,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:21,321 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:21,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:21,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1381620891, now seen corresponding path program 1 times [2025-02-06 09:55:21,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:21,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323501854] [2025-02-06 09:55:21,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:21,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:21,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:21,324 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:21,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:55:21,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 09:55:21,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 09:55:21,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:21,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:21,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:55:21,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:21,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:55:21,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:21,622 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:21,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323501854] [2025-02-06 09:55:21,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323501854] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:21,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:21,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:55:21,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455888123] [2025-02-06 09:55:21,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:21,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:55:21,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:21,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:55:21,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:55:21,624 INFO L87 Difference]: Start difference. First operand 293 states and 382 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:21,706 INFO L93 Difference]: Finished difference Result 333 states and 422 transitions. [2025-02-06 09:55:21,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:55:21,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2025-02-06 09:55:21,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:21,708 INFO L225 Difference]: With dead ends: 333 [2025-02-06 09:55:21,708 INFO L226 Difference]: Without dead ends: 333 [2025-02-06 09:55:21,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:55:21,709 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 8 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:21,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:21,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-02-06 09:55:21,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2025-02-06 09:55:21,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 325 states have (on average 1.2738461538461539) internal successors, (414), 327 states have internal predecessors, (414), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 09:55:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 422 transitions. [2025-02-06 09:55:21,716 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 422 transitions. Word has length 80 [2025-02-06 09:55:21,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:21,716 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 422 transitions. [2025-02-06 09:55:21,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 422 transitions. [2025-02-06 09:55:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-06 09:55:21,718 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:21,718 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:21,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:55:21,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:21,919 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:21,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:21,919 INFO L85 PathProgramCache]: Analyzing trace with hash 943611388, now seen corresponding path program 1 times [2025-02-06 09:55:21,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:21,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734869269] [2025-02-06 09:55:21,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:21,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:21,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:21,924 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:21,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:55:22,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 09:55:22,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 09:55:22,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:22,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:22,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:55:22,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:22,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:55:22,385 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:22,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:22,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734869269] [2025-02-06 09:55:22,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734869269] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:22,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:22,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:22,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602949760] [2025-02-06 09:55:22,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:22,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:22,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:22,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:22,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:22,387 INFO L87 Difference]: Start difference. First operand 333 states and 422 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:26,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:55:30,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:55:32,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:32,453 INFO L93 Difference]: Finished difference Result 420 states and 536 transitions. [2025-02-06 09:55:32,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:32,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2025-02-06 09:55:32,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:32,457 INFO L225 Difference]: With dead ends: 420 [2025-02-06 09:55:32,457 INFO L226 Difference]: Without dead ends: 420 [2025-02-06 09:55:32,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:55:32,458 INFO L435 NwaCegarLoop]: 249 mSDtfsCounter, 479 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:32,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 426 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2025-02-06 09:55:32,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2025-02-06 09:55:32,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 417. [2025-02-06 09:55:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 409 states have (on average 1.2836185819070904) internal successors, (525), 411 states have internal predecessors, (525), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 09:55:32,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 533 transitions. [2025-02-06 09:55:32,468 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 533 transitions. Word has length 80 [2025-02-06 09:55:32,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:32,468 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 533 transitions. [2025-02-06 09:55:32,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:32,468 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 533 transitions. [2025-02-06 09:55:32,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-06 09:55:32,470 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:32,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:32,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 09:55:32,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:32,674 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:32,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:32,674 INFO L85 PathProgramCache]: Analyzing trace with hash 572826023, now seen corresponding path program 1 times [2025-02-06 09:55:32,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:32,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683549148] [2025-02-06 09:55:32,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:32,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:32,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:32,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:32,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 09:55:32,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-06 09:55:32,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 09:55:32,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:32,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:32,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:55:32,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:55:33,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:33,009 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:33,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683549148] [2025-02-06 09:55:33,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683549148] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:33,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:33,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:33,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982617861] [2025-02-06 09:55:33,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:33,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:33,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:33,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:33,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:33,010 INFO L87 Difference]: Start difference. First operand 417 states and 533 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:33,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:33,127 INFO L93 Difference]: Finished difference Result 383 states and 477 transitions. [2025-02-06 09:55:33,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:55:33,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-02-06 09:55:33,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:33,130 INFO L225 Difference]: With dead ends: 383 [2025-02-06 09:55:33,130 INFO L226 Difference]: Without dead ends: 383 [2025-02-06 09:55:33,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:55:33,130 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 32 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:33,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 619 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2025-02-06 09:55:33,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2025-02-06 09:55:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 375 states have (on average 1.2506666666666666) internal successors, (469), 377 states have internal predecessors, (469), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 09:55:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 477 transitions. [2025-02-06 09:55:33,144 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 477 transitions. Word has length 82 [2025-02-06 09:55:33,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:33,144 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 477 transitions. [2025-02-06 09:55:33,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:33,144 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 477 transitions. [2025-02-06 09:55:33,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-06 09:55:33,145 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:33,145 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:33,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:55:33,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:33,348 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:33,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:33,349 INFO L85 PathProgramCache]: Analyzing trace with hash -57640320, now seen corresponding path program 1 times [2025-02-06 09:55:33,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:33,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453039409] [2025-02-06 09:55:33,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:33,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:33,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:33,351 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:33,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 09:55:33,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-06 09:55:33,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 09:55:33,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:33,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:33,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:55:33,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:55:33,671 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:33,672 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:33,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453039409] [2025-02-06 09:55:33,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453039409] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:33,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:33,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:33,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595918543] [2025-02-06 09:55:33,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:33,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:33,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:33,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:33,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:33,673 INFO L87 Difference]: Start difference. First operand 383 states and 477 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:33,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:33,702 INFO L93 Difference]: Finished difference Result 386 states and 481 transitions. [2025-02-06 09:55:33,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:33,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2025-02-06 09:55:33,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:33,705 INFO L225 Difference]: With dead ends: 386 [2025-02-06 09:55:33,705 INFO L226 Difference]: Without dead ends: 386 [2025-02-06 09:55:33,705 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:33,706 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:33,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 683 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:55:33,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2025-02-06 09:55:33,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2025-02-06 09:55:33,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 377 states have (on average 1.2519893899204244) internal successors, (472), 380 states have internal predecessors, (472), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 09:55:33,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 481 transitions. [2025-02-06 09:55:33,716 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 481 transitions. Word has length 82 [2025-02-06 09:55:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:33,716 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 481 transitions. [2025-02-06 09:55:33,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 481 transitions. [2025-02-06 09:55:33,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-06 09:55:33,717 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:33,719 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:33,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 09:55:33,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:33,920 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:33,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:33,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1512828636, now seen corresponding path program 1 times [2025-02-06 09:55:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [454432345] [2025-02-06 09:55:33,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:33,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:33,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:33,923 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:33,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 09:55:34,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-06 09:55:34,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-06 09:55:34,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:34,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:34,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:55:34,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:34,253 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:34,253 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:34,254 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:34,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:55:34,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:34,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:55:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:55:34,303 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:34,303 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:34,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454432345] [2025-02-06 09:55:34,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454432345] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:34,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:34,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:34,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486353400] [2025-02-06 09:55:34,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:34,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:34,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:34,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:34,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:34,304 INFO L87 Difference]: Start difference. First operand 386 states and 481 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:34,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:34,668 INFO L93 Difference]: Finished difference Result 529 states and 667 transitions. [2025-02-06 09:55:34,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:34,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-02-06 09:55:34,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:34,674 INFO L225 Difference]: With dead ends: 529 [2025-02-06 09:55:34,674 INFO L226 Difference]: Without dead ends: 529 [2025-02-06 09:55:34,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:55:34,675 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 203 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:34,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 673 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 09:55:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2025-02-06 09:55:34,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 388. [2025-02-06 09:55:34,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 379 states have (on average 1.2506596306068603) internal successors, (474), 382 states have internal predecessors, (474), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 09:55:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 483 transitions. [2025-02-06 09:55:34,698 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 483 transitions. Word has length 84 [2025-02-06 09:55:34,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:34,699 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 483 transitions. [2025-02-06 09:55:34,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:34,699 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 483 transitions. [2025-02-06 09:55:34,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 09:55:34,700 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:34,700 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:34,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 09:55:34,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:34,902 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:34,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:34,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1970812112, now seen corresponding path program 1 times [2025-02-06 09:55:34,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:34,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1043575662] [2025-02-06 09:55:34,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:34,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:34,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:34,906 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:34,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 09:55:35,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 09:55:35,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 09:55:35,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:35,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:35,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:55:35,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:35,297 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:55:35,297 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:35,297 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:35,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043575662] [2025-02-06 09:55:35,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043575662] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:35,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:35,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:55:35,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992119465] [2025-02-06 09:55:35,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:35,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:55:35,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:35,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:55:35,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:55:35,299 INFO L87 Difference]: Start difference. First operand 388 states and 483 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:35,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:35,409 INFO L93 Difference]: Finished difference Result 448 states and 543 transitions. [2025-02-06 09:55:35,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:55:35,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 127 [2025-02-06 09:55:35,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:35,411 INFO L225 Difference]: With dead ends: 448 [2025-02-06 09:55:35,411 INFO L226 Difference]: Without dead ends: 448 [2025-02-06 09:55:35,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:55:35,412 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 8 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:35,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 409 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:35,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2025-02-06 09:55:35,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2025-02-06 09:55:35,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 439 states have (on average 1.216400911161731) internal successors, (534), 442 states have internal predecessors, (534), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 09:55:35,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 543 transitions. [2025-02-06 09:55:35,419 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 543 transitions. Word has length 127 [2025-02-06 09:55:35,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:35,420 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 543 transitions. [2025-02-06 09:55:35,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:35,420 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 543 transitions. [2025-02-06 09:55:35,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 09:55:35,421 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:35,421 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:35,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:35,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:35,622 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:35,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:35,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2069418639, now seen corresponding path program 1 times [2025-02-06 09:55:35,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:35,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840023862] [2025-02-06 09:55:35,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:35,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:35,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:35,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:35,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 09:55:35,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 09:55:35,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 09:55:35,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:35,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:36,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:55:36,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:55:36,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:36,025 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:36,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840023862] [2025-02-06 09:55:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840023862] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:36,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:36,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:36,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924986193] [2025-02-06 09:55:36,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:36,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:36,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:36,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:36,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:36,027 INFO L87 Difference]: Start difference. First operand 448 states and 543 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:36,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:36,112 INFO L93 Difference]: Finished difference Result 397 states and 459 transitions. [2025-02-06 09:55:36,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:55:36,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 127 [2025-02-06 09:55:36,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:36,113 INFO L225 Difference]: With dead ends: 397 [2025-02-06 09:55:36,114 INFO L226 Difference]: Without dead ends: 397 [2025-02-06 09:55:36,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:55:36,114 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 32 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:36,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 586 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:36,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2025-02-06 09:55:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2025-02-06 09:55:36,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 388 states have (on average 1.1597938144329898) internal successors, (450), 391 states have internal predecessors, (450), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 09:55:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 459 transitions. [2025-02-06 09:55:36,128 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 459 transitions. Word has length 127 [2025-02-06 09:55:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:36,128 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 459 transitions. [2025-02-06 09:55:36,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:55:36,129 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 459 transitions. [2025-02-06 09:55:36,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 09:55:36,130 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:36,130 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:36,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:36,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:36,330 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:36,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:36,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1090033098, now seen corresponding path program 1 times [2025-02-06 09:55:36,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:36,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725530511] [2025-02-06 09:55:36,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:36,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:36,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:36,335 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:36,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 09:55:36,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 09:55:36,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 09:55:36,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:36,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:36,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:55:36,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:36,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:55:36,756 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:55:36,816 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:55:36,817 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:36,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725530511] [2025-02-06 09:55:36,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725530511] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:55:36,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:55:36,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 09:55:36,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536387464] [2025-02-06 09:55:36,817 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:55:36,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:55:36,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:36,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:55:36,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:55:36,818 INFO L87 Difference]: Start difference. First operand 397 states and 459 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:55:36,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:36,925 INFO L93 Difference]: Finished difference Result 408 states and 476 transitions. [2025-02-06 09:55:36,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:55:36,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 127 [2025-02-06 09:55:36,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:36,927 INFO L225 Difference]: With dead ends: 408 [2025-02-06 09:55:36,928 INFO L226 Difference]: Without dead ends: 408 [2025-02-06 09:55:36,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:55:36,928 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 5 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:36,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 864 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:36,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2025-02-06 09:55:36,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 406. [2025-02-06 09:55:36,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 396 states have (on average 1.1717171717171717) internal successors, (464), 399 states have internal predecessors, (464), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-02-06 09:55:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 474 transitions. [2025-02-06 09:55:36,937 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 474 transitions. Word has length 127 [2025-02-06 09:55:36,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:36,937 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 474 transitions. [2025-02-06 09:55:36,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:55:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 474 transitions. [2025-02-06 09:55:36,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-02-06 09:55:36,938 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:36,938 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:36,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:37,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:37,139 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:37,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:37,139 INFO L85 PathProgramCache]: Analyzing trace with hash -378454522, now seen corresponding path program 2 times [2025-02-06 09:55:37,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:37,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124669712] [2025-02-06 09:55:37,140 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:55:37,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:37,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:37,142 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:37,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 09:55:37,416 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 131 statements into 2 equivalence classes. [2025-02-06 09:55:37,608 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 131 of 131 statements. [2025-02-06 09:55:37,608 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:55:37,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:37,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:55:37,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 09:55:37,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:55:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:55:37,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:37,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124669712] [2025-02-06 09:55:37,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124669712] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:55:37,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:55:37,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 09:55:37,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471398021] [2025-02-06 09:55:37,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:55:37,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:55:37,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:37,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:55:37,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:55:37,825 INFO L87 Difference]: Start difference. First operand 406 states and 474 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:55:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:38,099 INFO L93 Difference]: Finished difference Result 414 states and 484 transitions. [2025-02-06 09:55:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:55:38,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2025-02-06 09:55:38,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:38,101 INFO L225 Difference]: With dead ends: 414 [2025-02-06 09:55:38,101 INFO L226 Difference]: Without dead ends: 412 [2025-02-06 09:55:38,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:55:38,102 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 6 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:38,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 871 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:55:38,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2025-02-06 09:55:38,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2025-02-06 09:55:38,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 400 states have (on average 1.175) internal successors, (470), 403 states have internal predecessors, (470), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-02-06 09:55:38,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 479 transitions. [2025-02-06 09:55:38,127 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 479 transitions. Word has length 131 [2025-02-06 09:55:38,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:38,127 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 479 transitions. [2025-02-06 09:55:38,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:55:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 479 transitions. [2025-02-06 09:55:38,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 09:55:38,128 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:38,128 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:38,145 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 [2025-02-06 09:55:38,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:38,333 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:38,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1317286842, now seen corresponding path program 3 times [2025-02-06 09:55:38,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:38,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [735935633] [2025-02-06 09:55:38,335 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:55:38,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:38,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:38,336 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:38,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 09:55:38,591 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 135 statements into 6 equivalence classes. [2025-02-06 09:55:38,770 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 118 of 135 statements. [2025-02-06 09:55:38,771 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 09:55:38,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:38,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 09:55:38,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:38,795 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:38,795 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:38,795 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:38,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:55:40,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:40,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 162 treesize of output 71 [2025-02-06 09:55:40,196 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:40,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 58 [2025-02-06 09:55:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-06 09:55:40,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:55:40,581 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:40,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735935633] [2025-02-06 09:55:40,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735935633] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:55:40,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2042340383] [2025-02-06 09:55:40,581 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:55:40,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2025-02-06 09:55:40,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2025-02-06 09:55:40,585 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2025-02-06 09:55:40,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2025-02-06 09:55:41,009 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 135 statements into 6 equivalence classes. [2025-02-06 09:55:41,394 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 118 of 135 statements. [2025-02-06 09:55:41,394 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 09:55:41,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:41,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:55:41,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:41,428 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:41,429 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:41,429 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:41,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 33 [2025-02-06 09:55:42,776 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:42,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 132 treesize of output 65 [2025-02-06 09:55:42,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:42,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 58 [2025-02-06 09:55:42,893 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-06 09:55:42,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:55:43,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2042340383] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 09:55:43,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:55:43,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2025-02-06 09:55:43,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540156252] [2025-02-06 09:55:43,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:55:43,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:55:43,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:43,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:55:43,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2025-02-06 09:55:43,081 INFO L87 Difference]: Start difference. First operand 410 states and 479 transitions. Second operand has 10 states, 10 states have (on average 18.4) internal successors, (184), 10 states have internal predecessors, (184), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:55:47,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:55:51,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:55:55,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:55:59,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:03,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:07,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:11,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:15,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:19,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:23,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:28,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:32,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:36,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:40,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:44,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:56:48,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]