./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:08:40,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:08:40,708 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-08 06:08:40,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:08:40,721 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:08:40,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:08:40,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:08:40,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:08:40,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:08:40,744 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:08:40,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:08:40,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:08:40,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:08:40,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:08:40,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:08:40,747 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:08:40,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:40,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:08:40,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:08:40,748 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 06:08:40,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 06:08:40,748 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:08:40,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:08:40,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:08:40,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:08:40,748 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 -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2025-02-08 06:08:41,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:08:41,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:08:41,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:08:41,051 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:08:41,051 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:08:41,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2025-02-08 06:08:42,378 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e12ac8c7f/66049eb167244672a71ed322811b9f29/FLAGed49ab006 [2025-02-08 06:08:42,841 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:08:42,841 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2025-02-08 06:08:42,857 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e12ac8c7f/66049eb167244672a71ed322811b9f29/FLAGed49ab006 [2025-02-08 06:08:42,872 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e12ac8c7f/66049eb167244672a71ed322811b9f29 [2025-02-08 06:08:42,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:08:42,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:08:42,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:42,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:08:42,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:08:42,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:42" (1/1) ... [2025-02-08 06:08:42,885 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f39a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:42, skipping insertion in model container [2025-02-08 06:08:42,885 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:42" (1/1) ... [2025-02-08 06:08:42,927 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:08:43,338 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,372 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,375 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,379 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,384 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,425 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,428 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,430 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,435 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,458 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,459 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,460 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,461 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,462 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,464 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,465 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,465 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,466 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,471 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,471 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,472 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,472 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,479 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:43,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:43,510 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 06:08:43,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c392b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:43, skipping insertion in model container [2025-02-08 06:08:43,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:43,511 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 06:08:43,513 INFO L158 Benchmark]: Toolchain (without parser) took 635.68ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 82.5MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 06:08:43,513 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 06:08:43,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.84ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 82.5MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 06:08:43,514 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.84ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 82.5MB in the end (delta: 23.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 06:08:45,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 06:08:45,817 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-08 06:08:45,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 06:08:45,829 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 06:08:45,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 06:08:45,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 06:08:45,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 06:08:45,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 06:08:45,856 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 06:08:45,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 06:08:45,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 06:08:45,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 06:08:45,857 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 06:08:45,857 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 06:08:45,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 06:08:45,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 06:08:45,858 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 06:08:45,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 06:08:45,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 06:08:45,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 06:08:45,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 06:08:45,859 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 06:08:45,860 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 06:08:45,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:45,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 06:08:45,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 06:08:45,861 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 06:08:45,861 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 06:08:45,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 06:08:45,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 06:08:45,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 06:08:45,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 06:08:45,861 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 -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2025-02-08 06:08:46,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 06:08:46,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 06:08:46,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 06:08:46,198 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 06:08:46,199 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 06:08:46,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2025-02-08 06:08:47,618 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e96975e1f/5593010d85d94ae99be08725436d05a0/FLAG8700ddb68 [2025-02-08 06:08:47,958 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 06:08:47,960 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2025-02-08 06:08:47,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e96975e1f/5593010d85d94ae99be08725436d05a0/FLAG8700ddb68 [2025-02-08 06:08:47,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e96975e1f/5593010d85d94ae99be08725436d05a0 [2025-02-08 06:08:48,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 06:08:48,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 06:08:48,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:48,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 06:08:48,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 06:08:48,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:48" (1/1) ... [2025-02-08 06:08:48,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74085153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:48, skipping insertion in model container [2025-02-08 06:08:48,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 06:08:48" (1/1) ... [2025-02-08 06:08:48,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:08:48,426 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,473 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,480 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,488 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,500 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,548 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,553 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,558 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,568 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,613 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,614 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,616 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,616 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,618 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,620 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,621 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,622 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,622 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,627 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,627 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,628 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,629 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,632 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:48,663 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 06:08:48,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 06:08:48,731 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,752 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,756 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,759 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,765 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,782 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,783 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,785 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,787 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,802 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,807 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,808 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,810 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,812 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,815 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,816 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,818 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,819 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,819 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,820 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 06:08:48,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:48,831 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 06:08:48,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 06:08:49,039 INFO L204 MainTranslator]: Completed translation [2025-02-08 06:08:49,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49 WrapperNode [2025-02-08 06:08:49,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 06:08:49,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 06:08:49,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 06:08:49,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 06:08:49,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,192 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1655 [2025-02-08 06:08:49,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 06:08:49,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 06:08:49,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 06:08:49,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 06:08:49,203 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,217 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,371 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2025-02-08 06:08:49,375 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,442 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 06:08:49,513 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 06:08:49,514 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 06:08:49,514 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 06:08:49,516 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (1/1) ... [2025-02-08 06:08:49,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 06:08:49,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:08:49,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 06:08:49,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-08 06:08:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-08 06:08:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-08 06:08:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-08 06:08:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-08 06:08:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-08 06:08:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-08 06:08:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 06:08:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 06:08:49,844 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 06:08:49,846 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 06:09:04,191 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2025-02-08 06:09:04,324 INFO L? ?]: Removed 226 outVars from TransFormulas that were not future-live. [2025-02-08 06:09:04,324 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 06:09:04,349 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 06:09:04,350 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 06:09:04,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:09:04 BoogieIcfgContainer [2025-02-08 06:09:04,350 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 06:09:04,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 06:09:04,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 06:09:04,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 06:09:04,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 06:08:48" (1/3) ... [2025-02-08 06:09:04,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a65e4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:09:04, skipping insertion in model container [2025-02-08 06:09:04,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 06:08:49" (2/3) ... [2025-02-08 06:09:04,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a65e4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 06:09:04, skipping insertion in model container [2025-02-08 06:09:04,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 06:09:04" (3/3) ... [2025-02-08 06:09:04,360 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2025-02-08 06:09:04,373 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 06:09:04,375 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test5-3.i that has 6 procedures, 320 locations, 1 initial locations, 58 loop locations, and 2 error locations. [2025-02-08 06:09:04,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 06:09:04,422 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@670424e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 06:09:04,422 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 06:09:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 292 states have (on average 1.667808219178082) internal successors, (487), 301 states have internal predecessors, (487), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-08 06:09:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 06:09:04,432 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:04,433 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:04,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:04,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:04,439 INFO L85 PathProgramCache]: Analyzing trace with hash -452674815, now seen corresponding path program 1 times [2025-02-08 06:09:04,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:04,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848217993] [2025-02-08 06:09:04,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:04,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:04,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:04,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:04,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 06:09:04,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 06:09:04,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 06:09:04,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:04,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:04,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:04,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:09:04,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:04,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848217993] [2025-02-08 06:09:04,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848217993] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:04,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:04,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:09:04,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585797467] [2025-02-08 06:09:04,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:04,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:09:04,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:04,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:09:04,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:04,799 INFO L87 Difference]: Start difference. First operand has 312 states, 292 states have (on average 1.667808219178082) internal successors, (487), 301 states have internal predecessors, (487), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:09:05,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:05,379 INFO L93 Difference]: Finished difference Result 473 states and 634 transitions. [2025-02-08 06:09:05,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:09:05,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 06:09:05,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:05,397 INFO L225 Difference]: With dead ends: 473 [2025-02-08 06:09:05,398 INFO L226 Difference]: Without dead ends: 467 [2025-02-08 06:09:05,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:05,405 INFO L435 NwaCegarLoop]: 398 mSDtfsCounter, 207 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:05,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 786 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-08 06:09:05,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2025-02-08 06:09:05,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 409. [2025-02-08 06:09:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 393 states have (on average 1.3358778625954197) internal successors, (525), 399 states have internal predecessors, (525), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 06:09:05,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 544 transitions. [2025-02-08 06:09:05,482 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 544 transitions. Word has length 7 [2025-02-08 06:09:05,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:05,483 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 544 transitions. [2025-02-08 06:09:05,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:09:05,483 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 544 transitions. [2025-02-08 06:09:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-08 06:09:05,483 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:05,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:05,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 06:09:05,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:05,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:05,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash -452645024, now seen corresponding path program 1 times [2025-02-08 06:09:05,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:05,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867092669] [2025-02-08 06:09:05,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:05,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:05,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:05,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:05,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 06:09:05,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 06:09:05,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 06:09:05,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:05,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:05,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 06:09:05,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 06:09:05,900 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:05,900 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:05,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867092669] [2025-02-08 06:09:05,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867092669] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:05,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:05,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 06:09:05,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053855863] [2025-02-08 06:09:05,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:05,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:09:05,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:05,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:09:05,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:05,902 INFO L87 Difference]: Start difference. First operand 409 states and 544 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:09:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:06,101 INFO L93 Difference]: Finished difference Result 543 states and 715 transitions. [2025-02-08 06:09:06,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:09:06,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2025-02-08 06:09:06,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:06,108 INFO L225 Difference]: With dead ends: 543 [2025-02-08 06:09:06,108 INFO L226 Difference]: Without dead ends: 543 [2025-02-08 06:09:06,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:06,109 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 294 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:06,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 815 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:09:06,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2025-02-08 06:09:06,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 345. [2025-02-08 06:09:06,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 329 states have (on average 1.3191489361702127) internal successors, (434), 335 states have internal predecessors, (434), 13 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-08 06:09:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 453 transitions. [2025-02-08 06:09:06,140 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 453 transitions. Word has length 7 [2025-02-08 06:09:06,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:06,140 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 453 transitions. [2025-02-08 06:09:06,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 06:09:06,140 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 453 transitions. [2025-02-08 06:09:06,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-02-08 06:09:06,147 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:06,147 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:06,154 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 06:09:06,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:06,348 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:06,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:06,348 INFO L85 PathProgramCache]: Analyzing trace with hash -290452398, now seen corresponding path program 1 times [2025-02-08 06:09:06,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:06,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829760939] [2025-02-08 06:09:06,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:06,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:06,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:06,354 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:06,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 06:09:06,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-02-08 06:09:07,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-02-08 06:09:07,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:07,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:07,045 INFO L256 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:07,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:07,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-08 06:09:07,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:07,924 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:07,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829760939] [2025-02-08 06:09:07,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829760939] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:07,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:07,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:09:07,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773534719] [2025-02-08 06:09:07,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:07,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:09:07,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:07,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:09:07,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:07,927 INFO L87 Difference]: Start difference. First operand 345 states and 453 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:09:08,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:08,375 INFO L93 Difference]: Finished difference Result 533 states and 703 transitions. [2025-02-08 06:09:08,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:09:08,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 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 162 [2025-02-08 06:09:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:08,386 INFO L225 Difference]: With dead ends: 533 [2025-02-08 06:09:08,386 INFO L226 Difference]: Without dead ends: 533 [2025-02-08 06:09:08,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:08,387 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 197 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:08,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 835 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-08 06:09:08,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2025-02-08 06:09:08,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 473. [2025-02-08 06:09:08,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 454 states have (on average 1.3215859030837005) internal successors, (600), 460 states have internal predecessors, (600), 16 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 06:09:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 625 transitions. [2025-02-08 06:09:08,405 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 625 transitions. Word has length 162 [2025-02-08 06:09:08,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:08,406 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 625 transitions. [2025-02-08 06:09:08,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-08 06:09:08,406 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 625 transitions. [2025-02-08 06:09:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-02-08 06:09:08,409 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:08,409 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:08,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 06:09:08,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:08,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:08,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1200393163, now seen corresponding path program 1 times [2025-02-08 06:09:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:08,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005145648] [2025-02-08 06:09:08,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:08,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:08,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:08,615 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:08,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 06:09:09,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-02-08 06:09:09,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-02-08 06:09:09,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:09,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:09,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:09,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:09,389 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 06:09:09,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:09,389 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:09,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005145648] [2025-02-08 06:09:09,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005145648] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:09,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:09,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:09:09,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715260798] [2025-02-08 06:09:09,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:09,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:09:09,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:09,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:09:09,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:09,394 INFO L87 Difference]: Start difference. First operand 473 states and 625 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:09,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:09,542 INFO L93 Difference]: Finished difference Result 513 states and 665 transitions. [2025-02-08 06:09:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:09:09,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 177 [2025-02-08 06:09:09,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:09,545 INFO L225 Difference]: With dead ends: 513 [2025-02-08 06:09:09,545 INFO L226 Difference]: Without dead ends: 513 [2025-02-08 06:09:09,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:09,546 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 8 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:09,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 747 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:09:09,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2025-02-08 06:09:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2025-02-08 06:09:09,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 494 states have (on average 1.2955465587044535) internal successors, (640), 500 states have internal predecessors, (640), 16 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 06:09:09,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 665 transitions. [2025-02-08 06:09:09,560 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 665 transitions. Word has length 177 [2025-02-08 06:09:09,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:09,560 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 665 transitions. [2025-02-08 06:09:09,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 665 transitions. [2025-02-08 06:09:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-02-08 06:09:09,563 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:09,563 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:09,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 06:09:09,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:09,764 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:09,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:09,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1902989002, now seen corresponding path program 1 times [2025-02-08 06:09:09,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:09,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446370755] [2025-02-08 06:09:09,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:09,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:09,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:09,768 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:09,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 06:09:10,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-02-08 06:09:10,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-02-08 06:09:10,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:10,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:10,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:10,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:10,479 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-08 06:09:10,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:10,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:10,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446370755] [2025-02-08 06:09:10,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446370755] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:10,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:10,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 06:09:10,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303661513] [2025-02-08 06:09:10,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:10,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 06:09:10,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:10,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 06:09:10,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:10,481 INFO L87 Difference]: Start difference. First operand 513 states and 665 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:09:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:10,616 INFO L93 Difference]: Finished difference Result 553 states and 705 transitions. [2025-02-08 06:09:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 06:09:10,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 177 [2025-02-08 06:09:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:10,619 INFO L225 Difference]: With dead ends: 553 [2025-02-08 06:09:10,619 INFO L226 Difference]: Without dead ends: 553 [2025-02-08 06:09:10,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 06:09:10,620 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 8 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:10,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 747 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:09:10,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-02-08 06:09:10,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2025-02-08 06:09:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 534 states have (on average 1.2734082397003745) internal successors, (680), 540 states have internal predecessors, (680), 16 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 06:09:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 705 transitions. [2025-02-08 06:09:10,634 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 705 transitions. Word has length 177 [2025-02-08 06:09:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:10,634 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 705 transitions. [2025-02-08 06:09:10,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:09:10,635 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 705 transitions. [2025-02-08 06:09:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-02-08 06:09:10,636 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:10,637 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:10,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 06:09:10,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:10,837 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:10,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:10,838 INFO L85 PathProgramCache]: Analyzing trace with hash 695070827, now seen corresponding path program 1 times [2025-02-08 06:09:10,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:10,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63173363] [2025-02-08 06:09:10,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:10,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:10,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:10,841 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:10,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 06:09:11,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-02-08 06:09:11,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-02-08 06:09:11,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:11,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:11,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:11,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:11,908 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 06:09:11,909 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:11,909 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:11,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63173363] [2025-02-08 06:09:11,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63173363] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:11,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:11,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:11,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466963606] [2025-02-08 06:09:11,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:11,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:11,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:11,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:11,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:11,911 INFO L87 Difference]: Start difference. First operand 553 states and 705 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:16,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:09:20,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:09:25,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:09:29,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:09:35,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-08 06:09:36,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:36,206 INFO L93 Difference]: Finished difference Result 506 states and 637 transitions. [2025-02-08 06:09:36,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:09:36,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 177 [2025-02-08 06:09:36,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:36,209 INFO L225 Difference]: With dead ends: 506 [2025-02-08 06:09:36,210 INFO L226 Difference]: Without dead ends: 506 [2025-02-08 06:09:36,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:09:36,211 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 516 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:36,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 712 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 5 Unknown, 0 Unchecked, 24.3s Time] [2025-02-08 06:09:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2025-02-08 06:09:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2025-02-08 06:09:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 487 states have (on average 1.2566735112936345) internal successors, (612), 493 states have internal predecessors, (612), 16 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 06:09:36,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 637 transitions. [2025-02-08 06:09:36,227 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 637 transitions. Word has length 177 [2025-02-08 06:09:36,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:36,228 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 637 transitions. [2025-02-08 06:09:36,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:36,229 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 637 transitions. [2025-02-08 06:09:36,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-08 06:09:36,231 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:36,231 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:36,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 06:09:36,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:36,432 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:36,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:36,433 INFO L85 PathProgramCache]: Analyzing trace with hash -359579753, now seen corresponding path program 1 times [2025-02-08 06:09:36,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:36,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156138033] [2025-02-08 06:09:36,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:36,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:36,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:36,436 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:36,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 06:09:36,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-08 06:09:37,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-08 06:09:37,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:37,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:37,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:37,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-08 06:09:37,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:37,259 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:37,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156138033] [2025-02-08 06:09:37,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156138033] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:37,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:37,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:37,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329793864] [2025-02-08 06:09:37,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:37,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:37,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:37,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:37,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:37,261 INFO L87 Difference]: Start difference. First operand 506 states and 637 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:37,425 INFO L93 Difference]: Finished difference Result 472 states and 581 transitions. [2025-02-08 06:09:37,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:09:37,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 185 [2025-02-08 06:09:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:37,427 INFO L225 Difference]: With dead ends: 472 [2025-02-08 06:09:37,427 INFO L226 Difference]: Without dead ends: 472 [2025-02-08 06:09:37,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:09:37,429 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 32 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:37,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1090 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:09:37,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2025-02-08 06:09:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2025-02-08 06:09:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 453 states have (on average 1.2273730684326711) internal successors, (556), 459 states have internal predecessors, (556), 16 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 06:09:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 581 transitions. [2025-02-08 06:09:37,440 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 581 transitions. Word has length 185 [2025-02-08 06:09:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:37,440 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 581 transitions. [2025-02-08 06:09:37,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:37,441 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 581 transitions. [2025-02-08 06:09:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-08 06:09:37,443 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:37,443 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:37,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 06:09:37,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:37,644 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:37,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:37,644 INFO L85 PathProgramCache]: Analyzing trace with hash -582699298, now seen corresponding path program 1 times [2025-02-08 06:09:37,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:37,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514569495] [2025-02-08 06:09:37,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:37,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:37,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:37,647 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:37,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 06:09:38,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-08 06:09:38,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-08 06:09:38,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:38,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:38,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 892 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:38,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-08 06:09:38,384 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:38,384 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:38,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514569495] [2025-02-08 06:09:38,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514569495] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:38,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:38,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:38,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444618807] [2025-02-08 06:09:38,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:38,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:38,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:38,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:38,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:38,386 INFO L87 Difference]: Start difference. First operand 472 states and 581 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:09:38,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:38,539 INFO L93 Difference]: Finished difference Result 438 states and 525 transitions. [2025-02-08 06:09:38,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:09:38,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 185 [2025-02-08 06:09:38,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:38,543 INFO L225 Difference]: With dead ends: 438 [2025-02-08 06:09:38,543 INFO L226 Difference]: Without dead ends: 438 [2025-02-08 06:09:38,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:09:38,545 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 32 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:38,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1057 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:09:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2025-02-08 06:09:38,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2025-02-08 06:09:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 419 states have (on average 1.1933174224343674) internal successors, (500), 425 states have internal predecessors, (500), 16 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 06:09:38,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 525 transitions. [2025-02-08 06:09:38,559 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 525 transitions. Word has length 185 [2025-02-08 06:09:38,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:38,559 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 525 transitions. [2025-02-08 06:09:38,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:09:38,560 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 525 transitions. [2025-02-08 06:09:38,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-08 06:09:38,562 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:38,562 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:38,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 06:09:38,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:38,763 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:38,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash 146604727, now seen corresponding path program 1 times [2025-02-08 06:09:38,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:38,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32623628] [2025-02-08 06:09:38,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:38,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:38,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:38,766 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:38,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 06:09:39,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-08 06:09:39,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-08 06:09:39,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:39,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:39,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:39,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-02-08 06:09:39,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:39,496 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:39,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32623628] [2025-02-08 06:09:39,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32623628] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:39,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:39,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:39,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550628340] [2025-02-08 06:09:39,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:39,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:39,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:39,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:39,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:39,497 INFO L87 Difference]: Start difference. First operand 438 states and 525 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:39,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:39,682 INFO L93 Difference]: Finished difference Result 441 states and 520 transitions. [2025-02-08 06:09:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 06:09:39,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 185 [2025-02-08 06:09:39,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:39,684 INFO L225 Difference]: With dead ends: 441 [2025-02-08 06:09:39,684 INFO L226 Difference]: Without dead ends: 441 [2025-02-08 06:09:39,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 06:09:39,685 INFO L435 NwaCegarLoop]: 349 mSDtfsCounter, 30 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:39,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1028 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:09:39,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2025-02-08 06:09:39,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2025-02-08 06:09:39,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 422 states have (on average 1.1729857819905214) internal successors, (495), 428 states have internal predecessors, (495), 16 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-02-08 06:09:39,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 520 transitions. [2025-02-08 06:09:39,694 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 520 transitions. Word has length 185 [2025-02-08 06:09:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:39,694 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 520 transitions. [2025-02-08 06:09:39,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-08 06:09:39,694 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 520 transitions. [2025-02-08 06:09:39,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-08 06:09:39,695 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:39,696 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:39,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 06:09:39,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:39,896 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:39,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:39,897 INFO L85 PathProgramCache]: Analyzing trace with hash -988910832, now seen corresponding path program 1 times [2025-02-08 06:09:39,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:39,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744104732] [2025-02-08 06:09:39,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:39,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:39,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:39,901 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:39,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 06:09:40,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-08 06:09:40,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-08 06:09:40,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:40,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:40,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:40,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-08 06:09:40,658 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 06:09:40,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:40,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744104732] [2025-02-08 06:09:40,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744104732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 06:09:40,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 06:09:40,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 06:09:40,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859143832] [2025-02-08 06:09:40,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 06:09:40,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 06:09:40,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:40,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 06:09:40,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:40,660 INFO L87 Difference]: Start difference. First operand 441 states and 520 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:09:40,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:40,748 INFO L93 Difference]: Finished difference Result 444 states and 526 transitions. [2025-02-08 06:09:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 06:09:40,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 185 [2025-02-08 06:09:40,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:40,752 INFO L225 Difference]: With dead ends: 444 [2025-02-08 06:09:40,752 INFO L226 Difference]: Without dead ends: 444 [2025-02-08 06:09:40,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 06:09:40,753 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 0 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:40,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1082 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-08 06:09:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2025-02-08 06:09:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2025-02-08 06:09:40,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 424 states have (on average 1.1745283018867925) internal successors, (498), 431 states have internal predecessors, (498), 16 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2025-02-08 06:09:40,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 526 transitions. [2025-02-08 06:09:40,763 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 526 transitions. Word has length 185 [2025-02-08 06:09:40,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:40,764 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 526 transitions. [2025-02-08 06:09:40,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-08 06:09:40,764 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 526 transitions. [2025-02-08 06:09:40,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-02-08 06:09:40,765 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:40,765 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:40,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 06:09:40,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:40,966 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:40,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:40,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2132158960, now seen corresponding path program 1 times [2025-02-08 06:09:40,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:40,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900646217] [2025-02-08 06:09:40,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:40,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:40,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:40,971 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:40,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 06:09:41,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-02-08 06:09:41,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-02-08 06:09:41,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:41,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:41,697 INFO L256 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 06:09:41,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 06:09:42,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:09:42,845 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-08 06:09:42,846 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:42,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900646217] [2025-02-08 06:09:42,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900646217] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:09:42,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:09:42,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2025-02-08 06:09:42,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243783296] [2025-02-08 06:09:42,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:09:42,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 06:09:42,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:42,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 06:09:42,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-08 06:09:42,847 INFO L87 Difference]: Start difference. First operand 444 states and 526 transitions. Second operand has 6 states, 6 states have (on average 47.333333333333336) internal successors, (284), 6 states have internal predecessors, (284), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-08 06:09:43,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:43,559 INFO L93 Difference]: Finished difference Result 961 states and 1145 transitions. [2025-02-08 06:09:43,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 06:09:43,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 47.333333333333336) internal successors, (284), 6 states have internal predecessors, (284), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 189 [2025-02-08 06:09:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:43,564 INFO L225 Difference]: With dead ends: 961 [2025-02-08 06:09:43,564 INFO L226 Difference]: Without dead ends: 961 [2025-02-08 06:09:43,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-02-08 06:09:43,565 INFO L435 NwaCegarLoop]: 593 mSDtfsCounter, 1170 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:43,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1753 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-08 06:09:43,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2025-02-08 06:09:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 883. [2025-02-08 06:09:43,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 854 states have (on average 1.17096018735363) internal successors, (1000), 861 states have internal predecessors, (1000), 25 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (26), 18 states have call predecessors, (26), 18 states have call successors, (26) [2025-02-08 06:09:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1051 transitions. [2025-02-08 06:09:43,594 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1051 transitions. Word has length 189 [2025-02-08 06:09:43,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:43,595 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1051 transitions. [2025-02-08 06:09:43,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.333333333333336) internal successors, (284), 6 states have internal predecessors, (284), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-08 06:09:43,595 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1051 transitions. [2025-02-08 06:09:43,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2025-02-08 06:09:43,598 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:43,599 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:43,627 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 [2025-02-08 06:09:43,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:43,799 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:43,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash 619597696, now seen corresponding path program 1 times [2025-02-08 06:09:43,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:43,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1806837866] [2025-02-08 06:09:43,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 06:09:43,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:43,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:43,803 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:43,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 06:09:44,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 501 statements into 1 equivalence classes. [2025-02-08 06:09:45,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 501 of 501 statements. [2025-02-08 06:09:45,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 06:09:45,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:45,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 2351 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 06:09:45,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 143 proven. 1 refuted. 0 times theorem prover too weak. 518 trivial. 0 not checked. [2025-02-08 06:09:45,356 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:09:45,514 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 115 proven. 13 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2025-02-08 06:09:45,514 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:45,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806837866] [2025-02-08 06:09:45,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806837866] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:09:45,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:09:45,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-08 06:09:45,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696911855] [2025-02-08 06:09:45,514 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:09:45,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 06:09:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:45,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 06:09:45,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-08 06:09:45,516 INFO L87 Difference]: Start difference. First operand 883 states and 1051 transitions. Second operand has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-08 06:09:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:45,753 INFO L93 Difference]: Finished difference Result 894 states and 1082 transitions. [2025-02-08 06:09:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 06:09:45,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 501 [2025-02-08 06:09:45,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:45,759 INFO L225 Difference]: With dead ends: 894 [2025-02-08 06:09:45,759 INFO L226 Difference]: Without dead ends: 894 [2025-02-08 06:09:45,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1003 GetRequests, 994 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-08 06:09:45,760 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 4 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:45,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1788 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-08 06:09:45,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2025-02-08 06:09:45,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 892. [2025-02-08 06:09:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 862 states have (on average 1.1763341067285382) internal successors, (1014), 869 states have internal predecessors, (1014), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (34), 18 states have call predecessors, (34), 18 states have call successors, (34) [2025-02-08 06:09:45,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1073 transitions. [2025-02-08 06:09:45,783 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1073 transitions. Word has length 501 [2025-02-08 06:09:45,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:45,784 INFO L471 AbstractCegarLoop]: Abstraction has 892 states and 1073 transitions. [2025-02-08 06:09:45,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-08 06:09:45,784 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1073 transitions. [2025-02-08 06:09:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2025-02-08 06:09:45,788 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:45,788 INFO L218 NwaCegarLoop]: trace histogram [12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:45,855 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 [2025-02-08 06:09:45,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:45,990 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:45,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:45,991 INFO L85 PathProgramCache]: Analyzing trace with hash 2101356544, now seen corresponding path program 2 times [2025-02-08 06:09:45,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:45,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1221102078] [2025-02-08 06:09:45,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 06:09:45,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:45,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:45,995 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:45,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 06:09:46,753 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 509 statements into 2 equivalence classes. [2025-02-08 06:09:47,535 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 509 of 509 statements. [2025-02-08 06:09:47,536 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 06:09:47,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 06:09:47,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 2439 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-08 06:09:47,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 06:09:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 157 proven. 3 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2025-02-08 06:09:47,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 06:09:48,006 INFO L134 CoverageAnalysis]: Checked inductivity of 754 backedges. 109 proven. 48 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2025-02-08 06:09:48,007 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 06:09:48,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221102078] [2025-02-08 06:09:48,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221102078] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 06:09:48,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-08 06:09:48,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-08 06:09:48,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686341573] [2025-02-08 06:09:48,008 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-08 06:09:48,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 06:09:48,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 06:09:48,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 06:09:48,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-08 06:09:48,010 INFO L87 Difference]: Start difference. First operand 892 states and 1073 transitions. Second operand has 10 states, 10 states have (on average 22.3) internal successors, (223), 10 states have internal predecessors, (223), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-08 06:09:48,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 06:09:48,458 INFO L93 Difference]: Finished difference Result 900 states and 1083 transitions. [2025-02-08 06:09:48,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 06:09:48,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 22.3) internal successors, (223), 10 states have internal predecessors, (223), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 509 [2025-02-08 06:09:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 06:09:48,462 INFO L225 Difference]: With dead ends: 900 [2025-02-08 06:09:48,462 INFO L226 Difference]: Without dead ends: 898 [2025-02-08 06:09:48,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1008 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-08 06:09:48,462 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 5 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-08 06:09:48,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1796 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-08 06:09:48,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2025-02-08 06:09:48,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 896. [2025-02-08 06:09:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 866 states have (on average 1.1778290993071594) internal successors, (1020), 873 states have internal predecessors, (1020), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (26), 18 states have call predecessors, (26), 18 states have call successors, (26) [2025-02-08 06:09:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1071 transitions. [2025-02-08 06:09:48,487 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1071 transitions. Word has length 509 [2025-02-08 06:09:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 06:09:48,487 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 1071 transitions. [2025-02-08 06:09:48,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 22.3) internal successors, (223), 10 states have internal predecessors, (223), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-08 06:09:48,488 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1071 transitions. [2025-02-08 06:09:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2025-02-08 06:09:48,492 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 06:09:48,492 INFO L218 NwaCegarLoop]: trace histogram [20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 06:09:48,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-08 06:09:48,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:48,693 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-08 06:09:48,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 06:09:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1415420672, now seen corresponding path program 3 times [2025-02-08 06:09:48,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 06:09:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2038315492] [2025-02-08 06:09:48,694 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 06:09:48,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 06:09:48,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 06:09:48,696 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 06:09:48,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 06:09:49,528 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 517 statements into 16 equivalence classes.