./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:56:34,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:56:34,288 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:56:34,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:56:34,296 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:56:34,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:56:34,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:56:34,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:56:34,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:56:34,321 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:56:34,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:56:34,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:56:34,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:56:34,322 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:56:34,323 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:56:34,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:56:34,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:56:34,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:56:34,324 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2025-02-06 09:56:34,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:56:34,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:56:34,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:56:34,559 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:56:34,559 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:56:34,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test3-1.i [2025-02-06 09:56:35,759 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7e9fc5c4/f3c62830b91d41aba8cf11b75145e289/FLAGd67ed3da1 [2025-02-06 09:56:36,085 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:56:36,085 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test3-1.i [2025-02-06 09:56:36,095 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7e9fc5c4/f3c62830b91d41aba8cf11b75145e289/FLAGd67ed3da1 [2025-02-06 09:56:36,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d7e9fc5c4/f3c62830b91d41aba8cf11b75145e289 [2025-02-06 09:56:36,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:56:36,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:56:36,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:56:36,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:56:36,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:56:36,340 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:56:36" (1/1) ... [2025-02-06 09:56:36,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762a5b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:36, skipping insertion in model container [2025-02-06 09:56:36,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:56:36" (1/1) ... [2025-02-06 09:56:36,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:56:36,629 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,658 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,660 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,665 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,672 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,717 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,717 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,719 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,719 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,720 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,725 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,725 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,729 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,733 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:36,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:56:36,748 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-06 09:56:36,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7afe8e04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:36, skipping insertion in model container [2025-02-06 09:56:36,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:56:36,749 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:56:36,751 INFO L158 Benchmark]: Toolchain (without parser) took 413.73ms. Allocated memory is still 201.3MB. Free memory was 153.1MB in the beginning and 134.2MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:56:36,751 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 201.3MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:56:36,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.98ms. Allocated memory is still 201.3MB. Free memory was 153.1MB in the beginning and 134.2MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 09:56:36,753 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 201.3MB. Free memory is still 118.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.98ms. Allocated memory is still 201.3MB. Free memory was 153.1MB in the beginning and 134.2MB in the end (delta: 18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test3-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:56:38,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:56:38,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:56:38,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:56:38,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:56:38,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:56:38,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:56:38,708 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:56:38,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:56:38,708 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:56:38,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:56:38,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:56:38,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:56:38,709 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:56:38,710 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:56:38,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:56:38,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:56:38,710 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:56:38,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:56:38,710 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:56:38,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:56:38,711 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:56:38,712 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:56:38,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:56:38,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:56:38,712 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 -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2025-02-06 09:56:38,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:56:38,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:56:38,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:56:38,987 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:56:38,987 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:56:38,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test3-1.i [2025-02-06 09:56:40,160 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a7906813d/694ba525596a4d4eb0fdb6ea8907e8b9/FLAG02346470a [2025-02-06 09:56:40,418 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:56:40,418 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test3-1.i [2025-02-06 09:56:40,428 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a7906813d/694ba525596a4d4eb0fdb6ea8907e8b9/FLAG02346470a [2025-02-06 09:56:40,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a7906813d/694ba525596a4d4eb0fdb6ea8907e8b9 [2025-02-06 09:56:40,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:56:40,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:56:40,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:56:40,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:56:40,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:56:40,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:56:40" (1/1) ... [2025-02-06 09:56:40,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b230ca8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:40, skipping insertion in model container [2025-02-06 09:56:40,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:56:40" (1/1) ... [2025-02-06 09:56:40,478 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:56:40,752 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,785 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,790 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,797 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,805 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,837 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,837 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,839 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,839 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,841 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,842 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,842 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,843 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,846 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:56:40,870 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:56:40,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:56:40,891 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,903 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,905 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,906 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,909 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,923 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,923 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,924 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,925 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,926 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,927 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,927 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,928 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,930 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:56:40,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:56:40,935 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:56:41,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:56:41,035 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:56:41,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41 WrapperNode [2025-02-06 09:56:41,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:56:41,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:56:41,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:56:41,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:56:41,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,091 INFO L138 Inliner]: procedures = 180, calls = 274, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 986 [2025-02-06 09:56:41,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:56:41,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:56:41,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:56:41,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:56:41,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,115 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,188 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2025-02-06 09:56:41,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,219 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,220 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,222 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:56:41,228 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:56:41,228 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:56:41,229 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:56:41,229 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (1/1) ... [2025-02-06 09:56:41,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:56:41,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:56:41,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:56:41,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:56:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 09:56:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 09:56:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 09:56:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:56:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 09:56:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-02-06 09:56:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-02-06 09:56:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-02-06 09:56:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:56:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:56:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:56:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 09:56:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:56:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:56:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:56:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 09:56:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:56:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:56:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 09:56:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:56:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:56:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:56:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 09:56:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:56:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:56:41,428 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:56:41,430 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:56:48,983 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 09:56:49,047 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2025-02-06 09:56:49,048 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:56:49,062 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:56:49,062 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:56:49,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:56:49 BoogieIcfgContainer [2025-02-06 09:56:49,062 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:56:49,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:56:49,065 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:56:49,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:56:49,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:56:40" (1/3) ... [2025-02-06 09:56:49,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c79528f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:56:49, skipping insertion in model container [2025-02-06 09:56:49,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:56:41" (2/3) ... [2025-02-06 09:56:49,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c79528f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:56:49, skipping insertion in model container [2025-02-06 09:56:49,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:56:49" (3/3) ... [2025-02-06 09:56:49,070 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test3-1.i [2025-02-06 09:56:49,080 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:56:49,081 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SAX_nondet_test3-1.i that has 5 procedures, 205 locations, 1 initial locations, 38 loop locations, and 2 error locations. [2025-02-06 09:56:49,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:56:49,114 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;@33674a41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:56:49,114 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:56:49,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 187 states have (on average 1.6524064171122994) internal successors, (309), 190 states have internal predecessors, (309), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 09:56:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 09:56:49,124 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:49,124 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 09:56:49,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:56:49,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:56:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash 10773009, now seen corresponding path program 1 times [2025-02-06 09:56:49,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:56:49,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2040237437] [2025-02-06 09:56:49,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:49,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:56:49,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:56:49,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:56:49,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:56:49,249 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 09:56:49,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 09:56:49,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:49,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:49,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:56:49,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:56:49,377 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_18| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18| (_ bv0 1)) |c_#valid|))) is different from true [2025-02-06 09:56:49,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:56:49,384 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:56:49,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:56:49,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040237437] [2025-02-06 09:56:49,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040237437] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:56:49,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:56:49,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:56:49,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968619642] [2025-02-06 09:56:49,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:56:49,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:56:49,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:56:49,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:56:49,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:56:49,432 INFO L87 Difference]: Start difference. First operand has 197 states, 187 states have (on average 1.6524064171122994) internal successors, (309), 190 states have internal predecessors, (309), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:53,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:56:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:56:54,027 INFO L93 Difference]: Finished difference Result 289 states and 380 transitions. [2025-02-06 09:56:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:56:54,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-02-06 09:56:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:56:54,042 INFO L225 Difference]: With dead ends: 289 [2025-02-06 09:56:54,045 INFO L226 Difference]: Without dead ends: 286 [2025-02-06 09:56:54,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:56:54,049 INFO L435 NwaCegarLoop]: 247 mSDtfsCounter, 118 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 381 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-06 09:56:54,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 478 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 1 Unknown, 381 Unchecked, 4.5s Time] [2025-02-06 09:56:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2025-02-06 09:56:54,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 194. [2025-02-06 09:56:54,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 185 states have (on average 1.3027027027027027) internal successors, (241), 187 states have internal predecessors, (241), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 09:56:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 251 transitions. [2025-02-06 09:56:54,086 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 251 transitions. Word has length 4 [2025-02-06 09:56:54,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:56:54,086 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 251 transitions. [2025-02-06 09:56:54,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 251 transitions. [2025-02-06 09:56:54,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 09:56:54,087 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:54,087 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:56:54,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 09:56:54,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:56:54,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:56:54,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:56:54,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2044467511, now seen corresponding path program 1 times [2025-02-06 09:56:54,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:56:54,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083898047] [2025-02-06 09:56:54,289 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:56:54,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:56:54,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:56:54,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:56:54,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:56:54,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 09:56:54,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 09:56:54,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:56:54,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:56:54,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:56:54,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:56:54,551 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_19| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19|)))) is different from true [2025-02-06 09:56:54,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:56:54,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:56:54,551 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:56:54,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083898047] [2025-02-06 09:56:54,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083898047] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:56:54,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:56:54,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:56:54,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649810358] [2025-02-06 09:56:54,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:56:54,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:56:54,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:56:54,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:56:54,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:56:54,553 INFO L87 Difference]: Start difference. First operand 194 states and 251 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:58,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:56:59,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:56:59,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:56:59,868 INFO L93 Difference]: Finished difference Result 287 states and 376 transitions. [2025-02-06 09:56:59,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:56:59,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-02-06 09:56:59,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:56:59,876 INFO L225 Difference]: With dead ends: 287 [2025-02-06 09:56:59,876 INFO L226 Difference]: Without dead ends: 286 [2025-02-06 09:56:59,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-02-06 09:56:59,877 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 111 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 375 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:56:59,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 476 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 375 Unchecked, 5.3s Time] [2025-02-06 09:56:59,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2025-02-06 09:56:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 262. [2025-02-06 09:56:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 251 states have (on average 1.3107569721115537) internal successors, (329), 253 states have internal predecessors, (329), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-06 09:56:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 343 transitions. [2025-02-06 09:56:59,887 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 343 transitions. Word has length 11 [2025-02-06 09:56:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:56:59,887 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 343 transitions. [2025-02-06 09:56:59,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:56:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 343 transitions. [2025-02-06 09:56:59,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 09:56:59,887 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:56:59,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:56:59,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 09:57:00,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:00,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:00,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:00,093 INFO L85 PathProgramCache]: Analyzing trace with hash -2012505920, now seen corresponding path program 1 times [2025-02-06 09:57:00,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:00,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374239443] [2025-02-06 09:57:00,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:00,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:00,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:00,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:00,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:57:00,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 09:57:00,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 09:57:00,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:00,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:00,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:57:00,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:57:00,306 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:00,307 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:00,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374239443] [2025-02-06 09:57:00,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374239443] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:00,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:00,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:57:00,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943026246] [2025-02-06 09:57:00,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:00,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:57:00,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:00,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:57:00,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:00,308 INFO L87 Difference]: Start difference. First operand 262 states and 343 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-02-06 09:57:04,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:57:05,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:05,980 INFO L93 Difference]: Finished difference Result 350 states and 457 transitions. [2025-02-06 09:57:05,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:57:05,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 15 [2025-02-06 09:57:05,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:05,984 INFO L225 Difference]: With dead ends: 350 [2025-02-06 09:57:05,984 INFO L226 Difference]: Without dead ends: 348 [2025-02-06 09:57:05,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:05,984 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 134 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:05,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 672 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2025-02-06 09:57:05,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-02-06 09:57:05,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2025-02-06 09:57:05,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 336 states have (on average 1.3095238095238095) internal successors, (440), 339 states have internal predecessors, (440), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-06 09:57:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 454 transitions. [2025-02-06 09:57:05,999 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 454 transitions. Word has length 15 [2025-02-06 09:57:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:05,999 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 454 transitions. [2025-02-06 09:57:05,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2025-02-06 09:57:05,999 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 454 transitions. [2025-02-06 09:57:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:57:06,000 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:06,000 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] [2025-02-06 09:57:06,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 09:57:06,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:06,205 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:06,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash 555805747, now seen corresponding path program 1 times [2025-02-06 09:57:06,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:06,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840945445] [2025-02-06 09:57:06,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:06,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:06,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:06,209 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:06,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:57:06,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:57:06,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:57:06,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:06,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:06,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:57:06,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:06,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:57:06,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:06,380 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:06,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840945445] [2025-02-06 09:57:06,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840945445] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:06,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:06,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:57:06,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698595614] [2025-02-06 09:57:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:06,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:57:06,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:06,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:57:06,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:57:06,382 INFO L87 Difference]: Start difference. First operand 347 states and 454 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2025-02-06 09:57:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:06,502 INFO L93 Difference]: Finished difference Result 407 states and 514 transitions. [2025-02-06 09:57:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:57:06,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 50 [2025-02-06 09:57:06,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:06,506 INFO L225 Difference]: With dead ends: 407 [2025-02-06 09:57:06,506 INFO L226 Difference]: Without dead ends: 407 [2025-02-06 09:57:06,506 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 [2025-02-06 09:57:06,506 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 9 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:06,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 447 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:57:06,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2025-02-06 09:57:06,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2025-02-06 09:57:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 396 states have (on average 1.2626262626262625) internal successors, (500), 399 states have internal predecessors, (500), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-06 09:57:06,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 514 transitions. [2025-02-06 09:57:06,521 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 514 transitions. Word has length 50 [2025-02-06 09:57:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:06,521 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 514 transitions. [2025-02-06 09:57:06,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2025-02-06 09:57:06,521 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 514 transitions. [2025-02-06 09:57:06,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:57:06,522 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:06,522 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] [2025-02-06 09:57:06,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:57:06,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:06,723 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:06,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1394494508, now seen corresponding path program 1 times [2025-02-06 09:57:06,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:06,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276387532] [2025-02-06 09:57:06,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:06,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:06,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:06,727 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:06,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:57:06,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:57:06,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:57:06,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:06,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:06,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:57:06,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:57:06,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:06,919 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:06,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276387532] [2025-02-06 09:57:06,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276387532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:06,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:06,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:57:06,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422768341] [2025-02-06 09:57:06,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:06,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:57:06,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:06,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:57:06,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:06,921 INFO L87 Difference]: Start difference. First operand 407 states and 514 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2025-02-06 09:57:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:07,001 INFO L93 Difference]: Finished difference Result 356 states and 430 transitions. [2025-02-06 09:57:07,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:57:07,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 50 [2025-02-06 09:57:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:07,019 INFO L225 Difference]: With dead ends: 356 [2025-02-06 09:57:07,020 INFO L226 Difference]: Without dead ends: 356 [2025-02-06 09:57:07,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:57:07,021 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 32 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:07,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 643 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:57:07,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-06 09:57:07,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2025-02-06 09:57:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 345 states have (on average 1.2057971014492754) internal successors, (416), 348 states have internal predecessors, (416), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-06 09:57:07,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 430 transitions. [2025-02-06 09:57:07,032 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 430 transitions. Word has length 50 [2025-02-06 09:57:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:07,032 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 430 transitions. [2025-02-06 09:57:07,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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) [2025-02-06 09:57:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 430 transitions. [2025-02-06 09:57:07,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:57:07,035 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:07,035 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] [2025-02-06 09:57:07,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 09:57:07,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:07,236 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:07,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:07,237 INFO L85 PathProgramCache]: Analyzing trace with hash 991597293, now seen corresponding path program 1 times [2025-02-06 09:57:07,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:07,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1802036065] [2025-02-06 09:57:07,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:07,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:07,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:07,240 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:07,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 09:57:07,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:57:07,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:57:07,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:07,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:07,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:57:07,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:07,404 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:07,405 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:07,406 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:07,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:57:07,475 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:57:07,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:57:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:57:07,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:07,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:07,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802036065] [2025-02-06 09:57:07,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802036065] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:07,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:07,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:57:07,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457669144] [2025-02-06 09:57:07,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:07,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 09:57:07,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:07,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 09:57:07,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:57:07,539 INFO L87 Difference]: Start difference. First operand 356 states and 430 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2025-02-06 09:57:08,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:08,102 INFO L93 Difference]: Finished difference Result 357 states and 440 transitions. [2025-02-06 09:57:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:57:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 50 [2025-02-06 09:57:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:08,104 INFO L225 Difference]: With dead ends: 357 [2025-02-06 09:57:08,104 INFO L226 Difference]: Without dead ends: 354 [2025-02-06 09:57:08,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:57:08,104 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 106 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:08,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 906 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 09:57:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2025-02-06 09:57:08,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 308. [2025-02-06 09:57:08,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 298 states have (on average 1.2281879194630871) internal successors, (366), 301 states have internal predecessors, (366), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 09:57:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 378 transitions. [2025-02-06 09:57:08,116 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 378 transitions. Word has length 50 [2025-02-06 09:57:08,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:08,116 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 378 transitions. [2025-02-06 09:57:08,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2025-02-06 09:57:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 378 transitions. [2025-02-06 09:57:08,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-06 09:57:08,120 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:08,120 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:08,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:57:08,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:08,321 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:08,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1159283015, now seen corresponding path program 1 times [2025-02-06 09:57:08,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:08,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485693357] [2025-02-06 09:57:08,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:08,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:08,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:08,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:08,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 09:57:08,523 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-06 09:57:08,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-06 09:57:08,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:08,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:08,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:57:08,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:57:08,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:08,672 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:08,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485693357] [2025-02-06 09:57:08,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485693357] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:08,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:08,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:57:08,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152926337] [2025-02-06 09:57:08,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:08,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:57:08,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:08,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:57:08,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:57:08,674 INFO L87 Difference]: Start difference. First operand 308 states and 378 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:08,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:08,761 INFO L93 Difference]: Finished difference Result 348 states and 418 transitions. [2025-02-06 09:57:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:57:08,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2025-02-06 09:57:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:08,762 INFO L225 Difference]: With dead ends: 348 [2025-02-06 09:57:08,762 INFO L226 Difference]: Without dead ends: 348 [2025-02-06 09:57:08,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:57:08,763 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 9 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:08,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 425 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:57:08,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-02-06 09:57:08,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2025-02-06 09:57:08,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 338 states have (on average 1.2011834319526626) internal successors, (406), 341 states have internal predecessors, (406), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-06 09:57:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 418 transitions. [2025-02-06 09:57:08,768 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 418 transitions. Word has length 81 [2025-02-06 09:57:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:08,768 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 418 transitions. [2025-02-06 09:57:08,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:08,769 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 418 transitions. [2025-02-06 09:57:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-06 09:57:08,769 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:08,769 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:08,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 09:57:08,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:08,970 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:08,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:08,971 INFO L85 PathProgramCache]: Analyzing trace with hash 511230554, now seen corresponding path program 1 times [2025-02-06 09:57:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:08,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345981104] [2025-02-06 09:57:08,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:08,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:08,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:08,973 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:08,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 09:57:09,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-06 09:57:09,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-06 09:57:09,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:09,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:09,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:57:09,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:57:09,418 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:09,418 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:09,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345981104] [2025-02-06 09:57:09,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345981104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:09,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:09,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:57:09,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117176491] [2025-02-06 09:57:09,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:09,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:57:09,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:09,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:57:09,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:09,420 INFO L87 Difference]: Start difference. First operand 348 states and 418 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:13,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:57:17,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:57:21,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:57:21,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:21,084 INFO L93 Difference]: Finished difference Result 439 states and 527 transitions. [2025-02-06 09:57:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:57:21,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2025-02-06 09:57:21,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:21,086 INFO L225 Difference]: With dead ends: 439 [2025-02-06 09:57:21,086 INFO L226 Difference]: Without dead ends: 439 [2025-02-06 09:57:21,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:57:21,087 INFO L435 NwaCegarLoop]: 246 mSDtfsCounter, 446 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:21,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 425 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2025-02-06 09:57:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2025-02-06 09:57:21,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 436. [2025-02-06 09:57:21,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 425 states have (on average 1.1976470588235295) internal successors, (509), 429 states have internal predecessors, (509), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-06 09:57:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 523 transitions. [2025-02-06 09:57:21,094 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 523 transitions. Word has length 81 [2025-02-06 09:57:21,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:21,094 INFO L471 AbstractCegarLoop]: Abstraction has 436 states and 523 transitions. [2025-02-06 09:57:21,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:21,094 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 523 transitions. [2025-02-06 09:57:21,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-06 09:57:21,095 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:21,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:21,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 09:57:21,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:21,299 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:21,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:21,299 INFO L85 PathProgramCache]: Analyzing trace with hash -327793711, now seen corresponding path program 1 times [2025-02-06 09:57:21,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:21,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [55625338] [2025-02-06 09:57:21,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:21,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:21,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:21,302 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:21,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 09:57:21,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-06 09:57:21,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-06 09:57:21,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:21,631 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:21,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:57:21,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:57:21,665 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:21,665 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:21,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55625338] [2025-02-06 09:57:21,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55625338] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:21,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:21,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:57:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941193725] [2025-02-06 09:57:21,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:21,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:57:21,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:21,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:57:21,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:21,666 INFO L87 Difference]: Start difference. First operand 436 states and 523 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:21,757 INFO L93 Difference]: Finished difference Result 402 states and 467 transitions. [2025-02-06 09:57:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:57:21,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2025-02-06 09:57:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:21,759 INFO L225 Difference]: With dead ends: 402 [2025-02-06 09:57:21,759 INFO L226 Difference]: Without dead ends: 402 [2025-02-06 09:57:21,759 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:57:21,761 INFO L435 NwaCegarLoop]: 208 mSDtfsCounter, 32 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:21,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 610 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:57:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2025-02-06 09:57:21,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2025-02-06 09:57:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 391 states have (on average 1.1585677749360614) internal successors, (453), 395 states have internal predecessors, (453), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-02-06 09:57:21,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 467 transitions. [2025-02-06 09:57:21,768 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 467 transitions. Word has length 85 [2025-02-06 09:57:21,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:21,768 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 467 transitions. [2025-02-06 09:57:21,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 467 transitions. [2025-02-06 09:57:21,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-06 09:57:21,770 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:21,770 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:21,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 09:57:21,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:21,971 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:21,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash -615560598, now seen corresponding path program 1 times [2025-02-06 09:57:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:21,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369487537] [2025-02-06 09:57:21,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:21,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:21,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:21,974 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:21,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 09:57:22,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-06 09:57:22,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-06 09:57:22,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:22,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:22,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:57:22,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 09:57:22,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:22,316 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:22,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369487537] [2025-02-06 09:57:22,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369487537] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:22,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:22,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:57:22,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820284686] [2025-02-06 09:57:22,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:22,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:57:22,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:22,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:57:22,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:22,318 INFO L87 Difference]: Start difference. First operand 402 states and 467 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:22,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:22,350 INFO L93 Difference]: Finished difference Result 405 states and 471 transitions. [2025-02-06 09:57:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:57:22,351 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2025-02-06 09:57:22,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:22,353 INFO L225 Difference]: With dead ends: 405 [2025-02-06 09:57:22,354 INFO L226 Difference]: Without dead ends: 405 [2025-02-06 09:57:22,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:57:22,354 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 0 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:22,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 674 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:57:22,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-02-06 09:57:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2025-02-06 09:57:22,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 393 states have (on average 1.1603053435114503) internal successors, (456), 398 states have internal predecessors, (456), 7 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-06 09:57:22,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 471 transitions. [2025-02-06 09:57:22,362 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 471 transitions. Word has length 85 [2025-02-06 09:57:22,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:22,362 INFO L471 AbstractCegarLoop]: Abstraction has 405 states and 471 transitions. [2025-02-06 09:57:22,362 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, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:22,362 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 471 transitions. [2025-02-06 09:57:22,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-06 09:57:22,363 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:22,363 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:22,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 09:57:22,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:22,564 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:22,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:22,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1806360922, now seen corresponding path program 1 times [2025-02-06 09:57:22,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:22,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196418758] [2025-02-06 09:57:22,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:22,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:22,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:22,567 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:22,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 09:57:22,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-06 09:57:22,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-06 09:57:22,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:22,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:22,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 09:57:22,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:22,931 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:57:22,932 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:57:23,040 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 09:57:23,041 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:23,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196418758] [2025-02-06 09:57:23,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196418758] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:57:23,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:57:23,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 09:57:23,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861232779] [2025-02-06 09:57:23,041 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:57:23,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:57:23,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:23,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:57:23,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:57:23,043 INFO L87 Difference]: Start difference. First operand 405 states and 471 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:57:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:23,154 INFO L93 Difference]: Finished difference Result 416 states and 488 transitions. [2025-02-06 09:57:23,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:57:23,155 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 87 [2025-02-06 09:57:23,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:23,157 INFO L225 Difference]: With dead ends: 416 [2025-02-06 09:57:23,157 INFO L226 Difference]: Without dead ends: 416 [2025-02-06 09:57:23,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:57:23,158 INFO L435 NwaCegarLoop]: 225 mSDtfsCounter, 4 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:23,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 895 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:57:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2025-02-06 09:57:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 414. [2025-02-06 09:57:23,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 401 states have (on average 1.172069825436409) internal successors, (470), 406 states have internal predecessors, (470), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-02-06 09:57:23,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 486 transitions. [2025-02-06 09:57:23,166 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 486 transitions. Word has length 87 [2025-02-06 09:57:23,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:23,166 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 486 transitions. [2025-02-06 09:57:23,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:57:23,166 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 486 transitions. [2025-02-06 09:57:23,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-06 09:57:23,167 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:23,167 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:23,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 09:57:23,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:23,368 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:23,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1321636138, now seen corresponding path program 2 times [2025-02-06 09:57:23,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:23,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526763058] [2025-02-06 09:57:23,369 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:57:23,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:23,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:23,373 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:23,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 09:57:23,588 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 91 statements into 2 equivalence classes. [2025-02-06 09:57:23,746 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 91 of 91 statements. [2025-02-06 09:57:23,746 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:57:23,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:23,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:57:23,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:24,084 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:24,085 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:24,085 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:57:24,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:57:24,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:57:24,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:57:24,175 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-06 09:57:24,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:57:24,175 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:24,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526763058] [2025-02-06 09:57:24,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526763058] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:57:24,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:57:24,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 09:57:24,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304139623] [2025-02-06 09:57:24,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:57:24,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:57:24,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:24,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:57:24,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:57:24,176 INFO L87 Difference]: Start difference. First operand 414 states and 486 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:24,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:24,457 INFO L93 Difference]: Finished difference Result 523 states and 616 transitions. [2025-02-06 09:57:24,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:57:24,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2025-02-06 09:57:24,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:24,459 INFO L225 Difference]: With dead ends: 523 [2025-02-06 09:57:24,459 INFO L226 Difference]: Without dead ends: 523 [2025-02-06 09:57:24,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-02-06 09:57:24,460 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 475 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:24,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 618 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:57:24,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-02-06 09:57:24,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 416. [2025-02-06 09:57:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 403 states have (on average 1.1712158808933002) internal successors, (472), 408 states have internal predecessors, (472), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2025-02-06 09:57:24,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 488 transitions. [2025-02-06 09:57:24,469 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 488 transitions. Word has length 91 [2025-02-06 09:57:24,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:24,469 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 488 transitions. [2025-02-06 09:57:24,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 09:57:24,470 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 488 transitions. [2025-02-06 09:57:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-02-06 09:57:24,471 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:24,471 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:24,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 09:57:24,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:24,672 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:24,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:24,672 INFO L85 PathProgramCache]: Analyzing trace with hash -336468625, now seen corresponding path program 1 times [2025-02-06 09:57:24,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:24,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932579624] [2025-02-06 09:57:24,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:57:24,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:24,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:24,676 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:24,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 09:57:24,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-02-06 09:57:25,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-02-06 09:57:25,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:57:25,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:25,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:57:25,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:25,110 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 09:57:25,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:57:25,214 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-06 09:57:25,214 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:25,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932579624] [2025-02-06 09:57:25,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932579624] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:57:25,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:57:25,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-02-06 09:57:25,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15340871] [2025-02-06 09:57:25,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:57:25,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 09:57:25,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:25,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 09:57:25,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-02-06 09:57:25,216 INFO L87 Difference]: Start difference. First operand 416 states and 488 transitions. Second operand has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:57:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:25,401 INFO L93 Difference]: Finished difference Result 424 states and 498 transitions. [2025-02-06 09:57:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 09:57:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 134 [2025-02-06 09:57:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:25,403 INFO L225 Difference]: With dead ends: 424 [2025-02-06 09:57:25,403 INFO L226 Difference]: Without dead ends: 422 [2025-02-06 09:57:25,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-02-06 09:57:25,403 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 6 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:25,403 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1125 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:57:25,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2025-02-06 09:57:25,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 420. [2025-02-06 09:57:25,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 407 states have (on average 1.1744471744471745) internal successors, (478), 412 states have internal predecessors, (478), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-06 09:57:25,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 493 transitions. [2025-02-06 09:57:25,413 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 493 transitions. Word has length 134 [2025-02-06 09:57:25,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:25,413 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 493 transitions. [2025-02-06 09:57:25,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-02-06 09:57:25,414 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 493 transitions. [2025-02-06 09:57:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-02-06 09:57:25,414 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:25,414 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:25,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 09:57:25,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:25,615 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:25,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1393314543, now seen corresponding path program 2 times [2025-02-06 09:57:25,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:25,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145359642] [2025-02-06 09:57:25,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:57:25,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:25,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:25,619 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:25,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 09:57:25,860 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 138 statements into 2 equivalence classes. [2025-02-06 09:57:26,062 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 138 of 138 statements. [2025-02-06 09:57:26,062 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 09:57:26,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:57:26,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 09:57:26,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:57:26,143 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 09:57:26,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:57:26,308 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 09:57:26,308 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:57:26,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145359642] [2025-02-06 09:57:26,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145359642] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:57:26,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:57:26,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-02-06 09:57:26,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378362729] [2025-02-06 09:57:26,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:57:26,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 09:57:26,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:57:26,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 09:57:26,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-02-06 09:57:26,310 INFO L87 Difference]: Start difference. First operand 420 states and 493 transitions. Second operand has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 14 states have internal predecessors, (135), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:57:26,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:57:26,686 INFO L93 Difference]: Finished difference Result 432 states and 509 transitions. [2025-02-06 09:57:26,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-02-06 09:57:26,687 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 14 states have internal predecessors, (135), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 138 [2025-02-06 09:57:26,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:57:26,688 INFO L225 Difference]: With dead ends: 432 [2025-02-06 09:57:26,688 INFO L226 Difference]: Without dead ends: 428 [2025-02-06 09:57:26,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-02-06 09:57:26,689 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 8 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:57:26,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1348 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:57:26,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2025-02-06 09:57:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 426. [2025-02-06 09:57:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 413 states have (on average 1.181598062953995) internal successors, (488), 418 states have internal predecessors, (488), 7 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-02-06 09:57:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 503 transitions. [2025-02-06 09:57:26,695 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 503 transitions. Word has length 138 [2025-02-06 09:57:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:57:26,695 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 503 transitions. [2025-02-06 09:57:26,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 14 states have internal predecessors, (135), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 09:57:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 503 transitions. [2025-02-06 09:57:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-06 09:57:26,696 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:57:26,696 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:57:26,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-02-06 09:57:26,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:26,897 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:57:26,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:57:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1228434607, now seen corresponding path program 3 times [2025-02-06 09:57:26,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:57:26,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [25434723] [2025-02-06 09:57:26,898 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 09:57:26,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:57:26,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:57:26,900 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:57:26,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 09:57:27,150 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 144 statements into 7 equivalence classes.