./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:57:37,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:57:37,510 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:57:37,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:57:37,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:57:37,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:57:37,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:57:37,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:57:37,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:57:37,547 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:57:37,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:57:37,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:57:37,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:57:37,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:57:37,548 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:57:37,548 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:57:37,549 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:57:37,550 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:57:37,550 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:57:37,551 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:57:37,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:57:37,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:57:37,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:57:37,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:57:37,552 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 -> a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 [2025-02-06 09:57:37,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:57:37,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:57:37,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:57:37,789 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:57:37,789 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:57:37,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2025-02-06 09:57:38,945 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/201e6352f/23d7b7a93370448882e1ca0b6d37c50e/FLAG5789228de [2025-02-06 09:57:39,289 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:57:39,289 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2025-02-06 09:57:39,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/201e6352f/23d7b7a93370448882e1ca0b6d37c50e/FLAG5789228de [2025-02-06 09:57:39,323 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/201e6352f/23d7b7a93370448882e1ca0b6d37c50e [2025-02-06 09:57:39,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:57:39,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:57:39,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:57:39,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:57:39,332 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:57:39,333 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:57:39" (1/1) ... [2025-02-06 09:57:39,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367cdfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:39, skipping insertion in model container [2025-02-06 09:57:39,334 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:57:39" (1/1) ... [2025-02-06 09:57:39,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:57:39,670 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,703 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,708 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,710 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,717 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,743 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,744 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,745 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,745 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,749 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,751 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,752 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,752 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,757 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:39,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:57:39,782 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 09:57:39,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36077fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:39, skipping insertion in model container [2025-02-06 09:57:39,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:57:39,783 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:57:39,787 INFO L158 Benchmark]: Toolchain (without parser) took 457.23ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 91.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:57:39,788 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:57:39,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.90ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 91.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 09:57:39,789 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.90ms. Allocated memory is still 142.6MB. Free memory was 110.4MB in the beginning and 91.3MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:57:41,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:57:41,750 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:57:41,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:57:41,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:57:41,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:57:41,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:57:41,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:57:41,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:57:41,779 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:57:41,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:57:41,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:57:41,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:57:41,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:57:41,780 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:57:41,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:57:41,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:57:41,781 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:57:41,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:57:41,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:57:41,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:57:41,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:57:41,782 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:57:41,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:57:41,783 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:57:41,783 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:57:41,783 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:57:41,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:57:41,783 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:57:41,783 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:57:41,783 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:57:41,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:57:41,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:57:41,784 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:57:41,784 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:57:41,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:57:41,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:57:41,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:57:41,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:57:41,784 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 -> a379a11019678fc2a367efcf212f49fd3083d5f94e928c550866b32de723f686 [2025-02-06 09:57:42,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:57:42,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:57:42,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:57:42,011 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:57:42,011 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:57:42,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2025-02-06 09:57:43,193 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a10f7c1b/9dd8c2b2ecb9445d85b44f4d8d73b582/FLAGdf1edcb5c [2025-02-06 09:57:43,477 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:57:43,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-1.i [2025-02-06 09:57:43,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a10f7c1b/9dd8c2b2ecb9445d85b44f4d8d73b582/FLAGdf1edcb5c [2025-02-06 09:57:43,502 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0a10f7c1b/9dd8c2b2ecb9445d85b44f4d8d73b582 [2025-02-06 09:57:43,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:57:43,505 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:57:43,506 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:57:43,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:57:43,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:57:43,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:57:43" (1/1) ... [2025-02-06 09:57:43,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347d9551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:43, skipping insertion in model container [2025-02-06 09:57:43,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:57:43" (1/1) ... [2025-02-06 09:57:43,550 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:57:43,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,845 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,848 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,851 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,864 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,906 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,909 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,910 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,911 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,912 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,913 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,914 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,915 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,917 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:43,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:57:43,940 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:57:43,952 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:57:43,980 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,001 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,002 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,004 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,007 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,023 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,023 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,025 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,025 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,026 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,027 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,027 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,028 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,034 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:57:44,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:57:44,045 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:57:44,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:57:44,135 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:57:44,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44 WrapperNode [2025-02-06 09:57:44,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:57:44,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:57:44,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:57:44,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:57:44,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,200 INFO L138 Inliner]: procedures = 180, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1005 [2025-02-06 09:57:44,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:57:44,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:57:44,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:57:44,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:57:44,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,223 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,303 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 219, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-02-06 09:57:44,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,342 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,367 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:57:44,368 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:57:44,368 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:57:44,368 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:57:44,369 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (1/1) ... [2025-02-06 09:57:44,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:57:44,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:44,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:57:44,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:57:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 09:57:44,424 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 09:57:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 09:57:44,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 09:57:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 09:57:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 09:57:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 09:57:44,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 09:57:44,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 09:57:44,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:57:44,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:57:44,594 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:57:44,596 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:57:52,020 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 09:57:52,120 INFO L? ?]: Removed 136 outVars from TransFormulas that were not future-live. [2025-02-06 09:57:52,121 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:57:52,137 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:57:52,138 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:57:52,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:57:52 BoogieIcfgContainer [2025-02-06 09:57:52,139 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:57:52,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:57:52,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:57:52,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:57:52,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:57:43" (1/3) ... [2025-02-06 09:57:52,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b5ce6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:57:52, skipping insertion in model container [2025-02-06 09:57:52,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:57:44" (2/3) ... [2025-02-06 09:57:52,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b5ce6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:57:52, skipping insertion in model container [2025-02-06 09:57:52,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:57:52" (3/3) ... [2025-02-06 09:57:52,147 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-1.i [2025-02-06 09:57:52,158 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:57:52,159 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_test3-1.i that has 6 procedures, 216 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-06 09:57:52,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:57:52,202 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;@c5d015f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:57:52,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:57:52,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 192 states have (on average 1.65625) internal successors, (318), 201 states have internal predecessors, (318), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2025-02-06 09:57:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 09:57:52,215 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:52,215 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:52,215 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:52,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:52,220 INFO L85 PathProgramCache]: Analyzing trace with hash -669185383, now seen corresponding path program 1 times [2025-02-06 09:57:52,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:52,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965617060] [2025-02-06 09:57:52,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:52,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:52,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:52,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:52,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:57:52,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 09:57:52,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 09:57:52,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:52,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:52,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 09:57:52,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:57:52,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:52,420 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:52,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965617060] [2025-02-06 09:57:52,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965617060] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:52,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:52,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:57:52,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130004524] [2025-02-06 09:57:52,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:52,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:57:52,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:52,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:57:52,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:57:52,470 INFO L87 Difference]: Start difference. First operand has 208 states, 192 states have (on average 1.65625) internal successors, (318), 201 states have internal predecessors, (318), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:57:52,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:52,502 INFO L93 Difference]: Finished difference Result 206 states and 271 transitions. [2025-02-06 09:57:52,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:57:52,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-02-06 09:57:52,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:52,508 INFO L225 Difference]: With dead ends: 206 [2025-02-06 09:57:52,508 INFO L226 Difference]: Without dead ends: 204 [2025-02-06 09:57:52,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:57:52,511 INFO L435 NwaCegarLoop]: 271 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:52,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:57:52,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2025-02-06 09:57:52,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2025-02-06 09:57:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 190 states have (on average 1.3210526315789475) internal successors, (251), 197 states have internal predecessors, (251), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 09:57:52,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 269 transitions. [2025-02-06 09:57:52,545 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 269 transitions. Word has length 8 [2025-02-06 09:57:52,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:52,545 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 269 transitions. [2025-02-06 09:57:52,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:57:52,545 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 269 transitions. [2025-02-06 09:57:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 09:57:52,546 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:52,546 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:52,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:57:52,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:52,747 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:52,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:52,748 INFO L85 PathProgramCache]: Analyzing trace with hash -579943541, now seen corresponding path program 1 times [2025-02-06 09:57:52,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:52,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634572639] [2025-02-06 09:57:52,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:52,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:52,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:52,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:52,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:57:52,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 09:57:52,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 09:57:52,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:52,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:52,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:57:52,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:52,892 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:52,892 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:52,893 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:52,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:57:52,950 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:57:52,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:57:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:57:52,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:52,964 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:52,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634572639] [2025-02-06 09:57:52,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634572639] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:52,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:52,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:57:52,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717573882] [2025-02-06 09:57:52,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:52,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:57:52,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:52,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:57:52,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:52,966 INFO L87 Difference]: Start difference. First operand 204 states and 269 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:57:53,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:53,392 INFO L93 Difference]: Finished difference Result 391 states and 522 transitions. [2025-02-06 09:57:53,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:57:53,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 09:57:53,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:53,395 INFO L225 Difference]: With dead ends: 391 [2025-02-06 09:57:53,395 INFO L226 Difference]: Without dead ends: 391 [2025-02-06 09:57:53,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:57:53,396 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 233 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:53,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 739 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 09:57:53,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2025-02-06 09:57:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 206. [2025-02-06 09:57:53,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 192 states have (on average 1.3177083333333333) internal successors, (253), 199 states have internal predecessors, (253), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 09:57:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 271 transitions. [2025-02-06 09:57:53,407 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 271 transitions. Word has length 10 [2025-02-06 09:57:53,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:53,407 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 271 transitions. [2025-02-06 09:57:53,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:57:53,407 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 271 transitions. [2025-02-06 09:57:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 09:57:53,408 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:53,408 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:53,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 09:57:53,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:53,610 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:53,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash 910323505, now seen corresponding path program 1 times [2025-02-06 09:57:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:53,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249303851] [2025-02-06 09:57:53,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:53,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:53,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:53,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:53,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:57:53,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 09:57:53,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 09:57:53,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:53,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:53,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:57:53,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:54,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:57:54,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:54,125 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:54,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249303851] [2025-02-06 09:57:54,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249303851] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:54,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:54,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:57:54,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68540695] [2025-02-06 09:57:54,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:54,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:57:54,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:54,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:57:54,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:57:54,126 INFO L87 Difference]: Start difference. First operand 206 states and 271 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:57:54,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:54,563 INFO L93 Difference]: Finished difference Result 312 states and 411 transitions. [2025-02-06 09:57:54,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:57:54,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2025-02-06 09:57:54,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:54,564 INFO L225 Difference]: With dead ends: 312 [2025-02-06 09:57:54,564 INFO L226 Difference]: Without dead ends: 312 [2025-02-06 09:57:54,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:57:54,565 INFO L435 NwaCegarLoop]: 310 mSDtfsCounter, 100 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:54,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 555 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 09:57:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-02-06 09:57:54,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 309. [2025-02-06 09:57:54,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 295 states have (on average 1.3220338983050848) internal successors, (390), 302 states have internal predecessors, (390), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 09:57:54,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 408 transitions. [2025-02-06 09:57:54,579 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 408 transitions. Word has length 65 [2025-02-06 09:57:54,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:54,579 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 408 transitions. [2025-02-06 09:57:54,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:57:54,579 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 408 transitions. [2025-02-06 09:57:54,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-06 09:57:54,580 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:54,580 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:54,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 09:57:54,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:54,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:54,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:54,784 INFO L85 PathProgramCache]: Analyzing trace with hash -180930756, now seen corresponding path program 1 times [2025-02-06 09:57:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:54,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555041349] [2025-02-06 09:57:54,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:54,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:54,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:54,788 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:54,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:57:54,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 09:57:55,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 09:57:55,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:55,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:55,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:57:55,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:57:55,353 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:55,353 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:55,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555041349] [2025-02-06 09:57:55,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555041349] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:55,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:55,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:57:55,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482411426] [2025-02-06 09:57:55,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:55,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:57:55,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:55,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:57:55,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:55,354 INFO L87 Difference]: Start difference. First operand 309 states and 408 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:59,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:58:03,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:58:04,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:58:04,819 INFO L93 Difference]: Finished difference Result 407 states and 543 transitions. [2025-02-06 09:58:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:58:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 80 [2025-02-06 09:58:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:58:04,824 INFO L225 Difference]: With dead ends: 407 [2025-02-06 09:58:04,824 INFO L226 Difference]: Without dead ends: 407 [2025-02-06 09:58:04,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:58:04,824 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 490 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2025-02-06 09:58:04,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 501 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2025-02-06 09:58:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2025-02-06 09:58:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 393. [2025-02-06 09:58:04,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 379 states have (on average 1.3218997361477574) internal successors, (501), 386 states have internal predecessors, (501), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 09:58:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 519 transitions. [2025-02-06 09:58:04,839 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 519 transitions. Word has length 80 [2025-02-06 09:58:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:58:04,841 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 519 transitions. [2025-02-06 09:58:04,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 519 transitions. [2025-02-06 09:58:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-06 09:58:04,843 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:58:04,843 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:58:04,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:58:05,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:05,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:58:05,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:58:05,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1213206342, now seen corresponding path program 1 times [2025-02-06 09:58:05,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:58:05,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816444236] [2025-02-06 09:58:05,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:58:05,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:05,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:58:05,052 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:58:05,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:58:05,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-06 09:58:05,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-06 09:58:05,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:58:05,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:58:05,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:58:05,379 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:58:05,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:58:05,400 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:58:05,400 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:58:05,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816444236] [2025-02-06 09:58:05,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816444236] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:58:05,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:58:05,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:58:05,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426312841] [2025-02-06 09:58:05,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:58:05,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:58:05,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:58:05,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:58:05,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:58:05,403 INFO L87 Difference]: Start difference. First operand 393 states and 519 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:05,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:58:05,523 INFO L93 Difference]: Finished difference Result 399 states and 509 transitions. [2025-02-06 09:58:05,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:58:05,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2025-02-06 09:58:05,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:58:05,525 INFO L225 Difference]: With dead ends: 399 [2025-02-06 09:58:05,525 INFO L226 Difference]: Without dead ends: 399 [2025-02-06 09:58:05,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:58:05,528 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 30 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:58:05,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 701 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:58:05,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2025-02-06 09:58:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2025-02-06 09:58:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 385 states have (on average 1.2753246753246754) internal successors, (491), 392 states have internal predecessors, (491), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 09:58:05,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 509 transitions. [2025-02-06 09:58:05,542 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 509 transitions. Word has length 86 [2025-02-06 09:58:05,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:58:05,542 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 509 transitions. [2025-02-06 09:58:05,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:05,542 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 509 transitions. [2025-02-06 09:58:05,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-06 09:58:05,543 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:58:05,543 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:58:05,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 09:58:05,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:05,749 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:58:05,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:58:05,749 INFO L85 PathProgramCache]: Analyzing trace with hash -452865121, now seen corresponding path program 1 times [2025-02-06 09:58:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:58:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449608731] [2025-02-06 09:58:05,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:58:05,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:05,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:58:05,752 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:58:05,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 09:58:05,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-06 09:58:06,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-06 09:58:06,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:58:06,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:58:06,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:58:06,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:58:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:58:06,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:58:06,098 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:58:06,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449608731] [2025-02-06 09:58:06,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449608731] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:58:06,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:58:06,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:58:06,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946458908] [2025-02-06 09:58:06,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:58:06,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:58:06,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:58:06,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:58:06,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:58:06,103 INFO L87 Difference]: Start difference. First operand 399 states and 509 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:06,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:58:06,143 INFO L93 Difference]: Finished difference Result 402 states and 513 transitions. [2025-02-06 09:58:06,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:58:06,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 86 [2025-02-06 09:58:06,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:58:06,146 INFO L225 Difference]: With dead ends: 402 [2025-02-06 09:58:06,146 INFO L226 Difference]: Without dead ends: 402 [2025-02-06 09:58:06,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:58:06,147 INFO L435 NwaCegarLoop]: 255 mSDtfsCounter, 0 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:58:06,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 761 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:58:06,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2025-02-06 09:58:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2025-02-06 09:58:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 387 states have (on average 1.276485788113695) internal successors, (494), 395 states have internal predecessors, (494), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-02-06 09:58:06,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 513 transitions. [2025-02-06 09:58:06,161 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 513 transitions. Word has length 86 [2025-02-06 09:58:06,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:58:06,161 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 513 transitions. [2025-02-06 09:58:06,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:06,161 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 513 transitions. [2025-02-06 09:58:06,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-06 09:58:06,162 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:58:06,162 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:58:06,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:58:06,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:06,363 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:58:06,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:58:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash -774490501, now seen corresponding path program 1 times [2025-02-06 09:58:06,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:58:06,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676140910] [2025-02-06 09:58:06,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:58:06,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:06,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:58:06,366 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:58:06,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 09:58:06,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-06 09:58:06,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-06 09:58:06,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:58:06,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:58:06,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:58:06,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:58:06,732 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:58:06,732 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:58:06,733 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:58:06,734 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:58:06,772 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:58:06,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:58:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:58:06,785 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:58:06,786 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:58:06,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676140910] [2025-02-06 09:58:06,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676140910] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:58:06,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:58:06,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:58:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115422237] [2025-02-06 09:58:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:58:06,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:58:06,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:58:06,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:58:06,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:58:06,787 INFO L87 Difference]: Start difference. First operand 402 states and 513 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:07,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:58:07,340 INFO L93 Difference]: Finished difference Result 545 states and 699 transitions. [2025-02-06 09:58:07,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:58:07,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 88 [2025-02-06 09:58:07,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:58:07,343 INFO L225 Difference]: With dead ends: 545 [2025-02-06 09:58:07,343 INFO L226 Difference]: Without dead ends: 545 [2025-02-06 09:58:07,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:58:07,344 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 203 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 09:58:07,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 751 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 09:58:07,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2025-02-06 09:58:07,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 404. [2025-02-06 09:58:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 389 states have (on average 1.275064267352185) internal successors, (496), 397 states have internal predecessors, (496), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-02-06 09:58:07,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 515 transitions. [2025-02-06 09:58:07,352 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 515 transitions. Word has length 88 [2025-02-06 09:58:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:58:07,352 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 515 transitions. [2025-02-06 09:58:07,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 515 transitions. [2025-02-06 09:58:07,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 09:58:07,353 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:58:07,353 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:58:07,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 09:58:07,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:07,558 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:58:07,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:58:07,559 INFO L85 PathProgramCache]: Analyzing trace with hash 381557914, now seen corresponding path program 1 times [2025-02-06 09:58:07,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:58:07,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2064281598] [2025-02-06 09:58:07,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:58:07,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:07,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:58:07,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:58:07,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 09:58:07,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 09:58:07,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 09:58:07,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:58:07,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:58:07,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:58:07,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:58:07,937 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:58:07,937 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:58:07,937 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:58:07,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064281598] [2025-02-06 09:58:07,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064281598] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:58:07,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:58:07,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:58:07,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648046473] [2025-02-06 09:58:07,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:58:07,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:58:07,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:58:07,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:58:07,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:58:07,938 INFO L87 Difference]: Start difference. First operand 404 states and 515 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:08,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:58:08,054 INFO L93 Difference]: Finished difference Result 413 states and 500 transitions. [2025-02-06 09:58:08,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:58:08,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 127 [2025-02-06 09:58:08,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:58:08,056 INFO L225 Difference]: With dead ends: 413 [2025-02-06 09:58:08,056 INFO L226 Difference]: Without dead ends: 413 [2025-02-06 09:58:08,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:58:08,056 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 30 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:58:08,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 668 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:58:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2025-02-06 09:58:08,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2025-02-06 09:58:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 398 states have (on average 1.2085427135678393) internal successors, (481), 406 states have internal predecessors, (481), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-02-06 09:58:08,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 500 transitions. [2025-02-06 09:58:08,063 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 500 transitions. Word has length 127 [2025-02-06 09:58:08,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:58:08,064 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 500 transitions. [2025-02-06 09:58:08,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:58:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 500 transitions. [2025-02-06 09:58:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-02-06 09:58:08,065 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:58:08,065 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:58:08,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 09:58:08,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:08,266 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:58:08,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:58:08,267 INFO L85 PathProgramCache]: Analyzing trace with hash -753957645, now seen corresponding path program 1 times [2025-02-06 09:58:08,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:58:08,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263367814] [2025-02-06 09:58:08,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:58:08,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:08,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:58:08,270 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:58:08,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 09:58:08,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-02-06 09:58:08,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-02-06 09:58:08,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:58:08,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:58:08,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:58:08,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:58:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:58:08,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:58:08,775 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:58:08,775 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:58:08,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263367814] [2025-02-06 09:58:08,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263367814] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:58:08,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:58:08,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 09:58:08,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080948382] [2025-02-06 09:58:08,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:58:08,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:58:08,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:58:08,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:58:08,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:58:08,777 INFO L87 Difference]: Start difference. First operand 413 states and 500 transitions. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:58:08,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:58:08,901 INFO L93 Difference]: Finished difference Result 424 states and 517 transitions. [2025-02-06 09:58:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:58:08,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 127 [2025-02-06 09:58:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:58:08,904 INFO L225 Difference]: With dead ends: 424 [2025-02-06 09:58:08,904 INFO L226 Difference]: Without dead ends: 424 [2025-02-06 09:58:08,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:58:08,906 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 5 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:58:08,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 968 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:58:08,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2025-02-06 09:58:08,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 422. [2025-02-06 09:58:08,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 406 states have (on average 1.2192118226600985) internal successors, (495), 414 states have internal predecessors, (495), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 8 states have call successors, (10) [2025-02-06 09:58:08,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 515 transitions. [2025-02-06 09:58:08,916 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 515 transitions. Word has length 127 [2025-02-06 09:58:08,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:58:08,916 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 515 transitions. [2025-02-06 09:58:08,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:58:08,916 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 515 transitions. [2025-02-06 09:58:08,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-02-06 09:58:08,917 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:58:08,917 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:58:08,931 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 09:58:09,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:09,118 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:58:09,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:58:09,119 INFO L85 PathProgramCache]: Analyzing trace with hash 679952239, now seen corresponding path program 2 times [2025-02-06 09:58:09,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:58:09,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1144185413] [2025-02-06 09:58:09,120 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:58:09,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:09,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:58:09,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:58:09,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 09:58:09,412 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 131 statements into 2 equivalence classes. [2025-02-06 09:58:09,605 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 131 of 131 statements. [2025-02-06 09:58:09,605 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:58:09,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:58:09,624 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:58:09,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:58:09,685 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 09:58:09,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:58:09,823 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:58:09,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:58:09,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144185413] [2025-02-06 09:58:09,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144185413] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:58:09,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:58:09,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 09:58:09,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873761297] [2025-02-06 09:58:09,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:58:09,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:58:09,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:58:09,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:58:09,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:58:09,826 INFO L87 Difference]: Start difference. First operand 422 states and 515 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:58:10,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:58:10,102 INFO L93 Difference]: Finished difference Result 430 states and 525 transitions. [2025-02-06 09:58:10,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:58:10,102 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2025-02-06 09:58:10,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:58:10,104 INFO L225 Difference]: With dead ends: 430 [2025-02-06 09:58:10,105 INFO L226 Difference]: Without dead ends: 428 [2025-02-06 09:58:10,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:58:10,105 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 5 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:58:10,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 976 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:58:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2025-02-06 09:58:10,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2025-02-06 09:58:10,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 410 states have (on average 1.221951219512195) internal successors, (501), 418 states have internal predecessors, (501), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2025-02-06 09:58:10,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 520 transitions. [2025-02-06 09:58:10,114 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 520 transitions. Word has length 131 [2025-02-06 09:58:10,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:58:10,115 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 520 transitions. [2025-02-06 09:58:10,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:58:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 520 transitions. [2025-02-06 09:58:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-06 09:58:10,116 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:58:10,116 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:58:10,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 09:58:10,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:10,318 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:58:10,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:58:10,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1042418735, now seen corresponding path program 3 times [2025-02-06 09:58:10,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:58:10,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312808758] [2025-02-06 09:58:10,319 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:58:10,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:58:10,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:58:10,322 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:58:10,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 09:58:10,588 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 135 statements into 6 equivalence classes. [2025-02-06 09:58:10,749 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 118 of 135 statements. [2025-02-06 09:58:10,749 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 09:58:10,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:58:10,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 09:58:10,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:58:10,773 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:58:10,773 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:58:10,774 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:58:10,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:58:12,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:58:12,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 189 treesize of output 87 [2025-02-06 09:58:12,444 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:58:12,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 74 [2025-02-06 09:58:12,465 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-06 09:58:12,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:58:12,902 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-02-06 09:58:12,902 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:58:12,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312808758] [2025-02-06 09:58:12,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312808758] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:58:12,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:58:12,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-02-06 09:58:12,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630866610] [2025-02-06 09:58:12,903 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:58:12,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 09:58:12,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:58:12,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 09:58:12,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-02-06 09:58:12,904 INFO L87 Difference]: Start difference. First operand 426 states and 520 transitions. Second operand has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:58:17,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:21,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:25,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:29,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:33,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:37,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:41,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:46,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:50,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:54,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:58:58,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:59:02,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:59:06,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:59:10,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:59:14,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:59:18,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 09:59:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:59:19,019 INFO L93 Difference]: Finished difference Result 1086 states and 1330 transitions. [2025-02-06 09:59:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 09:59:19,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2025-02-06 09:59:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:59:19,022 INFO L225 Difference]: With dead ends: 1086 [2025-02-06 09:59:19,023 INFO L226 Difference]: Without dead ends: 1086 [2025-02-06 09:59:19,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 255 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2025-02-06 09:59:19,023 INFO L435 NwaCegarLoop]: 318 mSDtfsCounter, 793 mSDsluCounter, 2370 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 20 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 2688 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.8s IncrementalHoareTripleChecker+Time [2025-02-06 09:59:19,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 2688 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 233 Invalid, 16 Unknown, 0 Unchecked, 65.8s Time] [2025-02-06 09:59:19,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2025-02-06 09:59:19,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 636. [2025-02-06 09:59:19,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 616 states have (on average 1.2142857142857142) internal successors, (748), 624 states have internal predecessors, (748), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2025-02-06 09:59:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 773 transitions. [2025-02-06 09:59:19,034 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 773 transitions. Word has length 135 [2025-02-06 09:59:19,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:59:19,034 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 773 transitions. [2025-02-06 09:59:19,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.416666666666666) internal successors, (185), 12 states have internal predecessors, (185), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:59:19,034 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 773 transitions. [2025-02-06 09:59:19,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-02-06 09:59:19,036 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:59:19,036 INFO L218 NwaCegarLoop]: trace histogram [10, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:59:19,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-06 09:59:19,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:59:19,237 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:59:19,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:59:19,238 INFO L85 PathProgramCache]: Analyzing trace with hash 58696214, now seen corresponding path program 1 times [2025-02-06 09:59:19,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:59:19,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1693246958] [2025-02-06 09:59:19,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:59:19,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:59:19,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:59:19,242 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:59:19,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 09:59:19,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 300 statements into 1 equivalence classes. [2025-02-06 09:59:20,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 300 of 300 statements. [2025-02-06 09:59:20,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:59:20,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:59:20,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 1504 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:59:20,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:59:20,219 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 150 proven. 10 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2025-02-06 09:59:20,219 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:59:20,431 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 150 proven. 10 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2025-02-06 09:59:20,432 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:59:20,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693246958] [2025-02-06 09:59:20,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693246958] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:59:20,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:59:20,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-02-06 09:59:20,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982206381] [2025-02-06 09:59:20,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:59:20,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 09:59:20,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:59:20,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 09:59:20,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-02-06 09:59:20,434 INFO L87 Difference]: Start difference. First operand 636 states and 773 transitions. Second operand has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 14 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:59:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:59:20,834 INFO L93 Difference]: Finished difference Result 659 states and 808 transitions. [2025-02-06 09:59:20,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 09:59:20,835 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 14 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 300 [2025-02-06 09:59:20,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:59:20,837 INFO L225 Difference]: With dead ends: 659 [2025-02-06 09:59:20,837 INFO L226 Difference]: Without dead ends: 653 [2025-02-06 09:59:20,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:59:20,838 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 8 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:59:20,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1456 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:59:20,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2025-02-06 09:59:20,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 644. [2025-02-06 09:59:20,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 624 states have (on average 1.2195512820512822) internal successors, (761), 632 states have internal predecessors, (761), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 11 states have call successors, (12) [2025-02-06 09:59:20,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 786 transitions. [2025-02-06 09:59:20,856 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 786 transitions. Word has length 300 [2025-02-06 09:59:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:59:20,856 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 786 transitions. [2025-02-06 09:59:20,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 14 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:59:20,856 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 786 transitions. [2025-02-06 09:59:20,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2025-02-06 09:59:20,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:59:20,859 INFO L218 NwaCegarLoop]: trace histogram [16, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:59:20,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 09:59:21,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:59:21,064 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:59:21,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:59:21,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1878093174, now seen corresponding path program 2 times [2025-02-06 09:59:21,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:59:21,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204908139] [2025-02-06 09:59:21,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:59:21,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:59:21,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:59:21,069 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:59:21,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 09:59:21,546 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 306 statements into 2 equivalence classes. [2025-02-06 09:59:22,020 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 306 of 306 statements. [2025-02-06 09:59:22,021 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:59:22,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat