./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:04:11,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:04:11,750 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-01-09 22:04:11,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:04:11,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:04:11,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:04:11,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:04:11,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:04:11,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:04:11,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:04:11,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:04:11,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:04:11,786 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:04:11,787 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:11,787 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:11,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:04:11,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:04:11,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:04:11,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:04:11,788 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 -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2025-01-09 22:04:11,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:04:11,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:04:11,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:04:11,975 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:04:11,975 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:04:11,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-01-09 22:04:13,148 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0d7416b7/ef30acda7af44ad58eceed3d99f5baf1/FLAGd61f65f36 [2025-01-09 22:04:13,538 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:04:13,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-01-09 22:04:13,556 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0d7416b7/ef30acda7af44ad58eceed3d99f5baf1/FLAGd61f65f36 [2025-01-09 22:04:13,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f0d7416b7/ef30acda7af44ad58eceed3d99f5baf1 [2025-01-09 22:04:13,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:04:13,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:04:13,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:13,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:04:13,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:04:13,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:13" (1/1) ... [2025-01-09 22:04:13,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70675efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:13, skipping insertion in model container [2025-01-09 22:04:13,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:13" (1/1) ... [2025-01-09 22:04:13,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:04:13,920 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,945 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,946 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,952 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,959 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,985 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,985 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,987 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,987 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,988 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,989 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,990 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,990 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,992 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,993 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,994 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,995 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,995 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,996 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:13,998 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:14,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:14,019 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-01-09 22:04:14,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@477d0179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:14, skipping insertion in model container [2025-01-09 22:04:14,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:14,021 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-01-09 22:04:14,023 INFO L158 Benchmark]: Toolchain (without parser) took 453.31ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 82.6MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 22:04:14,024 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:04:14,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.77ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 82.6MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 22:04:14,026 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 116.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.77ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 82.6MB in the end (delta: 21.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:04:15,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:04:16,015 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-01-09 22:04:16,020 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:04:16,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:04:16,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:04:16,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:04:16,045 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:04:16,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:04:16,046 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:04:16,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:04:16,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:04:16,046 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:04:16,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:04:16,047 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:04:16,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:04:16,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 22:04:16,048 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:04:16,049 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:16,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:16,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:04:16,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:04:16,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:04:16,051 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 -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2025-01-09 22:04:16,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:04:16,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:04:16,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:04:16,297 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:04:16,297 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:04:16,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-01-09 22:04:17,457 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c3a73ca9/4f4e98f67f084e74bbf74de5f982a8ea/FLAG6d97bd7e3 [2025-01-09 22:04:17,755 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:04:17,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2025-01-09 22:04:17,775 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c3a73ca9/4f4e98f67f084e74bbf74de5f982a8ea/FLAG6d97bd7e3 [2025-01-09 22:04:18,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c3a73ca9/4f4e98f67f084e74bbf74de5f982a8ea [2025-01-09 22:04:18,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:04:18,022 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:04:18,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:18,024 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:04:18,026 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:04:18,027 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3075548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18, skipping insertion in model container [2025-01-09 22:04:18,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:04:18,422 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,450 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,452 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,455 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,459 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,486 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,486 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,488 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,488 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,493 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,494 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,494 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,499 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,501 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,502 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,506 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,507 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,507 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,508 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,512 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,515 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:18,531 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-01-09 22:04:18,539 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:04:18,563 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,572 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,573 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,574 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,576 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,588 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,588 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,589 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,589 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,590 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,591 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,591 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,592 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,593 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,594 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,599 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,600 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,600 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,600 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,602 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-01-09 22:04:18,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:18,609 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 22:04:18,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:04:18,740 INFO L204 MainTranslator]: Completed translation [2025-01-09 22:04:18,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18 WrapperNode [2025-01-09 22:04:18,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:04:18,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 22:04:18,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 22:04:18,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 22:04:18,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,809 INFO L138 Inliner]: procedures = 286, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1181 [2025-01-09 22:04:18,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 22:04:18,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 22:04:18,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 22:04:18,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 22:04:18,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,822 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,893 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 34, 12, 270]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 62 writes are split as follows [0, 4, 1, 57]. [2025-01-09 22:04:18,893 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,968 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:18,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 22:04:18,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 22:04:18,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 22:04:18,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 22:04:18,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (1/1) ... [2025-01-09 22:04:19,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:04:19,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:19,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 22:04:19,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 22:04:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-01-09 22:04:19,040 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-01-09 22:04:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-01-09 22:04:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-01-09 22:04:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-01-09 22:04:19,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 22:04:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-01-09 22:04:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-01-09 22:04:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-09 22:04:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-01-09 22:04:19,044 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 22:04:19,044 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-01-09 22:04:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-01-09 22:04:19,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 22:04:19,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 22:04:19,206 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 22:04:19,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 22:04:24,921 INFO L? ?]: Removed 169 outVars from TransFormulas that were not future-live. [2025-01-09 22:04:24,922 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 22:04:24,934 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 22:04:24,934 INFO L312 CfgBuilder]: Removed 35 assume(true) statements. [2025-01-09 22:04:24,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:04:24 BoogieIcfgContainer [2025-01-09 22:04:24,935 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 22:04:24,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 22:04:24,936 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 22:04:24,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 22:04:24,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:04:18" (1/3) ... [2025-01-09 22:04:24,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a95a363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:04:24, skipping insertion in model container [2025-01-09 22:04:24,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:04:18" (2/3) ... [2025-01-09 22:04:24,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a95a363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:04:24, skipping insertion in model container [2025-01-09 22:04:24,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:04:24" (3/3) ... [2025-01-09 22:04:24,941 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2025-01-09 22:04:24,950 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 22:04:24,952 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test6-2.i that has 6 procedures, 266 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2025-01-09 22:04:24,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 22:04:24,983 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;@2522b9e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 22:04:24,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-09 22:04:24,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 266 states, 239 states have (on average 1.5899581589958158) internal successors, (380), 244 states have internal predecessors, (380), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 22:04:24,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 22:04:24,994 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:24,994 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:24,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:25,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:25,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1574779065, now seen corresponding path program 1 times [2025-01-09 22:04:25,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:25,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [797700622] [2025-01-09 22:04:25,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:25,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:25,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:25,015 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:25,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 22:04:25,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 22:04:25,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 22:04:25,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:25,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:25,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 22:04:25,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:25,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:25,188 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:25,188 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:25,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797700622] [2025-01-09 22:04:25,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797700622] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:25,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:25,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 22:04:25,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854350741] [2025-01-09 22:04:25,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:25,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 22:04:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:25,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 22:04:25,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 22:04:25,207 INFO L87 Difference]: Start difference. First operand has 266 states, 239 states have (on average 1.5899581589958158) internal successors, (380), 244 states have internal predecessors, (380), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:25,226 INFO L93 Difference]: Finished difference Result 261 states and 339 transitions. [2025-01-09 22:04:25,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 22:04:25,227 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-09 22:04:25,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:25,232 INFO L225 Difference]: With dead ends: 261 [2025-01-09 22:04:25,232 INFO L226 Difference]: Without dead ends: 259 [2025-01-09 22:04:25,233 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 22:04:25,234 INFO L435 NwaCegarLoop]: 339 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, 339 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 [2025-01-09 22:04:25,235 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:04:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2025-01-09 22:04:25,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2025-01-09 22:04:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 234 states have (on average 1.294871794871795) internal successors, (303), 239 states have internal predecessors, (303), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-09 22:04:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 337 transitions. [2025-01-09 22:04:25,265 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 337 transitions. Word has length 10 [2025-01-09 22:04:25,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:25,265 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 337 transitions. [2025-01-09 22:04:25,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:25,266 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 337 transitions. [2025-01-09 22:04:25,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-09 22:04:25,266 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:25,266 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:25,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 22:04:25,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:25,467 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:25,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1095865279, now seen corresponding path program 1 times [2025-01-09 22:04:25,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:25,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1443060615] [2025-01-09 22:04:25,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:25,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:25,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:25,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:25,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 22:04:25,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 22:04:25,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 22:04:25,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:25,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:25,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:04:25,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:25,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:25,721 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:25,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443060615] [2025-01-09 22:04:25,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443060615] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:25,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:25,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:04:25,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479971015] [2025-01-09 22:04:25,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:25,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:04:25,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:25,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:04:25,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:25,723 INFO L87 Difference]: Start difference. First operand 259 states and 337 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:28,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:28,174 INFO L93 Difference]: Finished difference Result 412 states and 539 transitions. [2025-01-09 22:04:28,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:04:28,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-01-09 22:04:28,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:28,176 INFO L225 Difference]: With dead ends: 412 [2025-01-09 22:04:28,176 INFO L226 Difference]: Without dead ends: 412 [2025-01-09 22:04:28,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:04:28,177 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 183 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:28,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 962 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 22:04:28,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2025-01-09 22:04:28,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 377. [2025-01-09 22:04:28,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 349 states have (on average 1.2979942693409743) internal successors, (453), 354 states have internal predecessors, (453), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 22:04:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 493 transitions. [2025-01-09 22:04:28,192 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 493 transitions. Word has length 12 [2025-01-09 22:04:28,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:28,192 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 493 transitions. [2025-01-09 22:04:28,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:28,192 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 493 transitions. [2025-01-09 22:04:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 22:04:28,193 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:28,193 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:28,200 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 [2025-01-09 22:04:28,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:28,394 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:28,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:28,394 INFO L85 PathProgramCache]: Analyzing trace with hash -639004804, now seen corresponding path program 1 times [2025-01-09 22:04:28,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:28,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668851721] [2025-01-09 22:04:28,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:28,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:28,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:28,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:28,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 22:04:28,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-09 22:04:28,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-09 22:04:28,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:28,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:28,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 22:04:28,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:28,544 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:28,545 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:28,545 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:28,553 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 [2025-01-09 22:04:28,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 22:04:28,594 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 [2025-01-09 22:04:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:28,604 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:28,604 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:28,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668851721] [2025-01-09 22:04:28,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668851721] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:28,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:28,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:04:28,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950064665] [2025-01-09 22:04:28,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:28,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:04:28,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:28,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:04:28,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:28,605 INFO L87 Difference]: Start difference. First operand 377 states and 493 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:28,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:28,909 INFO L93 Difference]: Finished difference Result 589 states and 778 transitions. [2025-01-09 22:04:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:04:28,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-01-09 22:04:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:28,912 INFO L225 Difference]: With dead ends: 589 [2025-01-09 22:04:28,912 INFO L226 Difference]: Without dead ends: 589 [2025-01-09 22:04:28,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:04:28,912 INFO L435 NwaCegarLoop]: 325 mSDtfsCounter, 271 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:28,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 949 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 22:04:28,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2025-01-09 22:04:28,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 376. [2025-01-09 22:04:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 348 states have (on average 1.2959770114942528) internal successors, (451), 353 states have internal predecessors, (451), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 22:04:28,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 491 transitions. [2025-01-09 22:04:28,926 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 491 transitions. Word has length 15 [2025-01-09 22:04:28,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:28,926 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 491 transitions. [2025-01-09 22:04:28,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:28,927 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 491 transitions. [2025-01-09 22:04:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 22:04:28,927 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:28,927 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:28,934 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 [2025-01-09 22:04:29,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:29,128 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:29,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash -40769683, now seen corresponding path program 1 times [2025-01-09 22:04:29,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:29,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502835205] [2025-01-09 22:04:29,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:29,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:29,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:29,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:29,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 22:04:29,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 22:04:29,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 22:04:29,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:29,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:29,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 22:04:29,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:29,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:29,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:29,361 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:29,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502835205] [2025-01-09 22:04:29,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502835205] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:29,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:29,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 22:04:29,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426442562] [2025-01-09 22:04:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:29,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:04:29,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:29,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:04:29,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:29,362 INFO L87 Difference]: Start difference. First operand 376 states and 491 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:29,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:29,438 INFO L93 Difference]: Finished difference Result 416 states and 531 transitions. [2025-01-09 22:04:29,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:04:29,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-01-09 22:04:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:29,440 INFO L225 Difference]: With dead ends: 416 [2025-01-09 22:04:29,440 INFO L226 Difference]: Without dead ends: 416 [2025-01-09 22:04:29,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:04:29,441 INFO L435 NwaCegarLoop]: 319 mSDtfsCounter, 7 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:29,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 621 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:04:29,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2025-01-09 22:04:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2025-01-09 22:04:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 388 states have (on average 1.2654639175257731) internal successors, (491), 393 states have internal predecessors, (491), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 22:04:29,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 531 transitions. [2025-01-09 22:04:29,449 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 531 transitions. Word has length 50 [2025-01-09 22:04:29,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:29,450 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 531 transitions. [2025-01-09 22:04:29,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 531 transitions. [2025-01-09 22:04:29,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 22:04:29,450 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:29,450 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:29,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 22:04:29,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:29,655 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:29,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:29,655 INFO L85 PathProgramCache]: Analyzing trace with hash 776878767, now seen corresponding path program 1 times [2025-01-09 22:04:29,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:29,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [423693728] [2025-01-09 22:04:29,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:29,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:29,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:29,661 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:29,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 22:04:29,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 22:04:29,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 22:04:29,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:29,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:29,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 22:04:29,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:29,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:29,875 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:29,875 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:29,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423693728] [2025-01-09 22:04:29,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423693728] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:29,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:29,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 22:04:29,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170273353] [2025-01-09 22:04:29,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:29,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 22:04:29,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:29,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 22:04:29,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:04:29,876 INFO L87 Difference]: Start difference. First operand 416 states and 531 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:29,954 INFO L93 Difference]: Finished difference Result 382 states and 475 transitions. [2025-01-09 22:04:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 22:04:29,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-01-09 22:04:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:29,955 INFO L225 Difference]: With dead ends: 382 [2025-01-09 22:04:29,955 INFO L226 Difference]: Without dead ends: 382 [2025-01-09 22:04:29,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:04:29,956 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 29 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:29,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 901 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:04:29,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-01-09 22:04:29,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2025-01-09 22:04:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 354 states have (on average 1.228813559322034) internal successors, (435), 359 states have internal predecessors, (435), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-01-09 22:04:29,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 475 transitions. [2025-01-09 22:04:29,962 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 475 transitions. Word has length 50 [2025-01-09 22:04:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:29,963 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 475 transitions. [2025-01-09 22:04:29,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:29,963 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 475 transitions. [2025-01-09 22:04:29,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 22:04:29,963 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:29,964 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 22:04:29,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 22:04:30,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:30,164 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:30,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:30,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2011512925, now seen corresponding path program 1 times [2025-01-09 22:04:30,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:30,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624815905] [2025-01-09 22:04:30,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:30,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:30,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:30,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:30,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 22:04:30,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 22:04:30,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 22:04:30,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:30,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:30,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 22:04:30,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:30,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:30,482 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:30,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624815905] [2025-01-09 22:04:30,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624815905] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:30,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:30,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 22:04:30,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279023471] [2025-01-09 22:04:30,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:30,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 22:04:30,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:30,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 22:04:30,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 22:04:30,483 INFO L87 Difference]: Start difference. First operand 382 states and 475 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:30,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:30,565 INFO L93 Difference]: Finished difference Result 391 states and 485 transitions. [2025-01-09 22:04:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 22:04:30,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-01-09 22:04:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:30,568 INFO L225 Difference]: With dead ends: 391 [2025-01-09 22:04:30,568 INFO L226 Difference]: Without dead ends: 391 [2025-01-09 22:04:30,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 22:04:30,568 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 8 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:30,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1951 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:04:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2025-01-09 22:04:30,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 390. [2025-01-09 22:04:30,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 359 states have (on average 1.2256267409470751) internal successors, (440), 365 states have internal predecessors, (440), 24 states have call successors, (24), 7 states have call predecessors, (24), 5 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 22:04:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 484 transitions. [2025-01-09 22:04:30,575 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 484 transitions. Word has length 50 [2025-01-09 22:04:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:30,575 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 484 transitions. [2025-01-09 22:04:30,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 22:04:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 484 transitions. [2025-01-09 22:04:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-09 22:04:30,576 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:30,577 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] [2025-01-09 22:04:30,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 22:04:30,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:30,777 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:30,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:30,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1610529412, now seen corresponding path program 1 times [2025-01-09 22:04:30,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:30,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [175678134] [2025-01-09 22:04:30,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:30,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:30,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:30,780 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:30,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 22:04:30,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-09 22:04:31,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 22:04:31,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:31,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:31,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:04:31,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:31,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:04:31,072 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:31,072 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:31,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175678134] [2025-01-09 22:04:31,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175678134] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:31,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:31,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:04:31,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290628779] [2025-01-09 22:04:31,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:31,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:04:31,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:31,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:04:31,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:31,074 INFO L87 Difference]: Start difference. First operand 390 states and 484 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 22:04:31,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:31,240 INFO L93 Difference]: Finished difference Result 1038 states and 1314 transitions. [2025-01-09 22:04:31,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:04:31,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2025-01-09 22:04:31,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:31,244 INFO L225 Difference]: With dead ends: 1038 [2025-01-09 22:04:31,244 INFO L226 Difference]: Without dead ends: 1038 [2025-01-09 22:04:31,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:31,244 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 594 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:31,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 1669 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:04:31,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2025-01-09 22:04:31,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 955. [2025-01-09 22:04:31,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 893 states have (on average 1.2463605823068309) internal successors, (1113), 903 states have internal predecessors, (1113), 48 states have call successors, (48), 13 states have call predecessors, (48), 12 states have return successors, (47), 38 states have call predecessors, (47), 44 states have call successors, (47) [2025-01-09 22:04:31,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1208 transitions. [2025-01-09 22:04:31,261 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1208 transitions. Word has length 70 [2025-01-09 22:04:31,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:31,261 INFO L471 AbstractCegarLoop]: Abstraction has 955 states and 1208 transitions. [2025-01-09 22:04:31,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 22:04:31,261 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1208 transitions. [2025-01-09 22:04:31,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 22:04:31,262 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:31,262 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 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] [2025-01-09 22:04:31,272 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 [2025-01-09 22:04:31,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:31,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:31,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:31,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1824629112, now seen corresponding path program 1 times [2025-01-09 22:04:31,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:31,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228947840] [2025-01-09 22:04:31,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:31,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:31,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:31,470 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:31,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 22:04:31,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 22:04:31,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 22:04:31,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:31,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:31,800 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 22:04:31,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-09 22:04:31,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:31,826 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:31,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228947840] [2025-01-09 22:04:31,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228947840] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:31,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:31,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:04:31,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588065413] [2025-01-09 22:04:31,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:31,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:04:31,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:31,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:04:31,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:31,827 INFO L87 Difference]: Start difference. First operand 955 states and 1208 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-01-09 22:04:31,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:31,859 INFO L93 Difference]: Finished difference Result 967 states and 1223 transitions. [2025-01-09 22:04:31,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:04:31,860 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 96 [2025-01-09 22:04:31,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:31,863 INFO L225 Difference]: With dead ends: 967 [2025-01-09 22:04:31,863 INFO L226 Difference]: Without dead ends: 967 [2025-01-09 22:04:31,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:31,863 INFO L435 NwaCegarLoop]: 323 mSDtfsCounter, 0 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:31,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 961 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:04:31,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2025-01-09 22:04:31,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2025-01-09 22:04:31,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 902 states have (on average 1.247228381374723) internal successors, (1125), 915 states have internal predecessors, (1125), 48 states have call successors, (48), 13 states have call predecessors, (48), 15 states have return successors, (50), 38 states have call predecessors, (50), 44 states have call successors, (50) [2025-01-09 22:04:31,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1223 transitions. [2025-01-09 22:04:31,878 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1223 transitions. Word has length 96 [2025-01-09 22:04:31,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:31,878 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1223 transitions. [2025-01-09 22:04:31,878 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-01-09 22:04:31,879 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1223 transitions. [2025-01-09 22:04:31,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-09 22:04:31,879 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:31,879 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 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] [2025-01-09 22:04:31,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 22:04:32,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:32,084 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:32,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:32,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1467941826, now seen corresponding path program 1 times [2025-01-09 22:04:32,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:32,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1871473886] [2025-01-09 22:04:32,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:32,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:32,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:32,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:32,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 22:04:32,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-09 22:04:32,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-09 22:04:32,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:32,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:32,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 22:04:32,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 22:04:32,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:04:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 22:04:32,873 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:32,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871473886] [2025-01-09 22:04:32,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871473886] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:04:32,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:04:32,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2025-01-09 22:04:32,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303387650] [2025-01-09 22:04:32,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:04:32,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 22:04:32,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:32,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 22:04:32,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-01-09 22:04:32,875 INFO L87 Difference]: Start difference. First operand 967 states and 1223 transitions. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-01-09 22:04:34,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:34,792 INFO L93 Difference]: Finished difference Result 3789 states and 4848 transitions. [2025-01-09 22:04:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-09 22:04:34,793 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 98 [2025-01-09 22:04:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:34,803 INFO L225 Difference]: With dead ends: 3789 [2025-01-09 22:04:34,803 INFO L226 Difference]: Without dead ends: 3789 [2025-01-09 22:04:34,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-01-09 22:04:34,804 INFO L435 NwaCegarLoop]: 1141 mSDtfsCounter, 3700 mSDsluCounter, 8678 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 315 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 9819 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 315 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:34,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 9819 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [315 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 22:04:34,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2025-01-09 22:04:34,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 2821. [2025-01-09 22:04:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2821 states, 2653 states have (on average 1.2570674707877874) internal successors, (3335), 2683 states have internal predecessors, (3335), 130 states have call successors, (130), 33 states have call predecessors, (130), 36 states have return successors, (135), 104 states have call predecessors, (135), 126 states have call successors, (135) [2025-01-09 22:04:34,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2821 states to 2821 states and 3600 transitions. [2025-01-09 22:04:34,851 INFO L78 Accepts]: Start accepts. Automaton has 2821 states and 3600 transitions. Word has length 98 [2025-01-09 22:04:34,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:34,852 INFO L471 AbstractCegarLoop]: Abstraction has 2821 states and 3600 transitions. [2025-01-09 22:04:34,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-01-09 22:04:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2821 states and 3600 transitions. [2025-01-09 22:04:34,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-01-09 22:04:34,853 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:34,853 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2025-01-09 22:04:34,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-09 22:04:35,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:35,054 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:35,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:35,054 INFO L85 PathProgramCache]: Analyzing trace with hash -370100881, now seen corresponding path program 1 times [2025-01-09 22:04:35,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:35,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [23295024] [2025-01-09 22:04:35,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:35,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:35,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:35,056 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:35,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 22:04:35,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-09 22:04:35,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-09 22:04:35,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:35,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:35,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 22:04:35,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:35,428 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:35,429 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:35,429 INFO L173 IndexEqualityManager]: detected equality via solver [2025-01-09 22:04:35,430 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 [2025-01-09 22:04:35,466 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-01-09 22:04:35,466 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 [2025-01-09 22:04:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 22:04:35,477 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 22:04:35,477 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:35,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23295024] [2025-01-09 22:04:35,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23295024] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:04:35,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:04:35,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 22:04:35,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433099170] [2025-01-09 22:04:35,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:04:35,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 22:04:35,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:35,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 22:04:35,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 22:04:35,478 INFO L87 Difference]: Start difference. First operand 2821 states and 3600 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-01-09 22:04:35,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:35,896 INFO L93 Difference]: Finished difference Result 3822 states and 4927 transitions. [2025-01-09 22:04:35,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 22:04:35,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 106 [2025-01-09 22:04:35,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:35,906 INFO L225 Difference]: With dead ends: 3822 [2025-01-09 22:04:35,906 INFO L226 Difference]: Without dead ends: 3822 [2025-01-09 22:04:35,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 22:04:35,907 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 214 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:35,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 904 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 22:04:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2025-01-09 22:04:35,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 2837. [2025-01-09 22:04:35,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2669 states have (on average 1.255526414387411) internal successors, (3351), 2699 states have internal predecessors, (3351), 130 states have call successors, (130), 33 states have call predecessors, (130), 36 states have return successors, (135), 104 states have call predecessors, (135), 126 states have call successors, (135) [2025-01-09 22:04:35,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 3616 transitions. [2025-01-09 22:04:35,949 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 3616 transitions. Word has length 106 [2025-01-09 22:04:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:35,950 INFO L471 AbstractCegarLoop]: Abstraction has 2837 states and 3616 transitions. [2025-01-09 22:04:35,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-01-09 22:04:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 3616 transitions. [2025-01-09 22:04:35,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 22:04:35,950 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:35,950 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 22:04:35,963 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 [2025-01-09 22:04:36,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:36,151 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:36,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:36,151 INFO L85 PathProgramCache]: Analyzing trace with hash 499455394, now seen corresponding path program 1 times [2025-01-09 22:04:36,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:36,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1665631883] [2025-01-09 22:04:36,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:04:36,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:36,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:36,154 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:36,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 22:04:36,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 22:04:36,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 22:04:36,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:04:36,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:04:36,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 22:04:36,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 22:04:36,622 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-09 22:04:36,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 22:04:36,710 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 22:04:36,712 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 22:04:36,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665631883] [2025-01-09 22:04:36,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665631883] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 22:04:36,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-01-09 22:04:36,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-01-09 22:04:36,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55340951] [2025-01-09 22:04:36,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-01-09 22:04:36,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 22:04:36,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 22:04:36,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 22:04:36,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-01-09 22:04:36,717 INFO L87 Difference]: Start difference. First operand 2837 states and 3616 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 22:04:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:04:36,824 INFO L93 Difference]: Finished difference Result 2915 states and 3730 transitions. [2025-01-09 22:04:36,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 22:04:36,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2025-01-09 22:04:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:04:36,835 INFO L225 Difference]: With dead ends: 2915 [2025-01-09 22:04:36,840 INFO L226 Difference]: Without dead ends: 2915 [2025-01-09 22:04:36,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-01-09 22:04:36,840 INFO L435 NwaCegarLoop]: 321 mSDtfsCounter, 5 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:04:36,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 960 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:04:36,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2915 states. [2025-01-09 22:04:36,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2915 to 2897. [2025-01-09 22:04:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2723 states have (on average 1.263679764965112) internal successors, (3441), 2753 states have internal predecessors, (3441), 130 states have call successors, (130), 39 states have call predecessors, (130), 42 states have return successors, (141), 104 states have call predecessors, (141), 126 states have call successors, (141) [2025-01-09 22:04:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 3712 transitions. [2025-01-09 22:04:36,941 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 3712 transitions. Word has length 113 [2025-01-09 22:04:36,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:04:36,941 INFO L471 AbstractCegarLoop]: Abstraction has 2897 states and 3712 transitions. [2025-01-09 22:04:36,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 22:04:36,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 3712 transitions. [2025-01-09 22:04:36,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-01-09 22:04:36,942 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:04:36,943 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 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] [2025-01-09 22:04:36,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-09 22:04:37,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:37,147 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-01-09 22:04:37,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:04:37,147 INFO L85 PathProgramCache]: Analyzing trace with hash -487687172, now seen corresponding path program 2 times [2025-01-09 22:04:37,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 22:04:37,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1511065410] [2025-01-09 22:04:37,148 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 22:04:37,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 22:04:37,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:04:37,151 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 22:04:37,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 22:04:37,400 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes.