./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:54:48,092 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:54:48,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-02-06 09:54:48,135 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:54:48,136 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:54:48,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:54:48,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:54:48,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:54:48,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:54:48,149 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:54:48,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:54:48,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:54:48,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:54:48,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:54:48,149 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:54:48,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:54:48,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:54:48,149 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:54:48,150 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:54:48,151 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:54:48,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:54:48,151 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:54:48,151 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 -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2025-02-06 09:54:48,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:54:48,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:54:48,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:54:48,337 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:54:48,337 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:54:48,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2025-02-06 09:54:49,443 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/87002544e/4681b81161964c50ad8983174cbe7011/FLAGcf95b8979 [2025-02-06 09:54:49,834 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:54:49,834 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2025-02-06 09:54:49,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/87002544e/4681b81161964c50ad8983174cbe7011/FLAGcf95b8979 [2025-02-06 09:54:50,024 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/87002544e/4681b81161964c50ad8983174cbe7011 [2025-02-06 09:54:50,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:54:50,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:54:50,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:54:50,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:54:50,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:54:50,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:54:50" (1/1) ... [2025-02-06 09:54:50,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6ad852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:50, skipping insertion in model container [2025-02-06 09:54:50,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:54:50" (1/1) ... [2025-02-06 09:54:50,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:54:50,414 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 09:54:50,443 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:54:50,446 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 09:54:50,447 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 09:54:50,460 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:54:50,490 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 09:54:50,490 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 09:54:50,491 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 09:54:50,491 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 09:54:50,494 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:54:50,496 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 09:54:50,496 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 09:54:50,497 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 09:54:50,499 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:54:50,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:54:50,521 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 09:54:50,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@634f844c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:50, skipping insertion in model container [2025-02-06 09:54:50,522 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:54:50,522 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-06 09:54:50,525 INFO L158 Benchmark]: Toolchain (without parser) took 496.51ms. Allocated memory is still 167.8MB. Free memory was 129.6MB in the beginning and 108.2MB in the end (delta: 21.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:54:50,525 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory was 140.5MB in the beginning and 140.2MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 09:54:50,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.94ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 108.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 09:54:50,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory was 140.5MB in the beginning and 140.2MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.94ms. Allocated memory is still 167.8MB. Free memory was 129.1MB in the beginning and 108.2MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1001]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 09:54:52,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:54:52,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-02-06 09:54:52,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:54:52,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:54:52,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:54:52,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:54:52,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:54:52,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 09:54:52,256 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 09:54:52,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:54:52,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:54:52,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:54:52,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:54:52,257 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:54:52,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:54:52,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:54:52,257 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:54:52,257 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:54:52,258 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:54:52,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:54:52,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:54:52,259 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:54:52,260 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 09:54:52,260 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 09:54:52,260 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:54:52,260 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:54:52,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:54:52,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:54:52,260 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 -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2025-02-06 09:54:52,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:54:52,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:54:52,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:54:52,528 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:54:52,528 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:54:52,529 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2025-02-06 09:54:53,772 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1effcae4/1aafe8eefa42431c87b985f6a63335f0/FLAG7ef3113a7 [2025-02-06 09:54:54,040 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:54:54,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2025-02-06 09:54:54,059 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1effcae4/1aafe8eefa42431c87b985f6a63335f0/FLAG7ef3113a7 [2025-02-06 09:54:54,074 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e1effcae4/1aafe8eefa42431c87b985f6a63335f0 [2025-02-06 09:54:54,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:54:54,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:54:54,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:54:54,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:54:54,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:54:54,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:54,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656ddcde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54, skipping insertion in model container [2025-02-06 09:54:54,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:54,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:54:54,506 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:54:54,536 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 09:54:54,538 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 09:54:54,540 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 09:54:54,545 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 09:54:54,569 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 09:54:54,569 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 09:54:54,570 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 09:54:54,571 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 09:54:54,575 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 09:54:54,576 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-06 09:54:54,577 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 09:54:54,577 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 09:54:54,581 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 09:54:54,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:54:54,607 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-06 09:54:54,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:54:54,661 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 09:54:54,681 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 09:54:54,686 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 09:54:54,688 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 09:54:54,691 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 09:54:54,712 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 09:54:54,712 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 09:54:54,716 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 09:54:54,716 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 09:54:54,717 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 09:54:54,718 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 09:54:54,720 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 09:54:54,721 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 09:54:54,723 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 09:54:54,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:54:54,733 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:54:54,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:54:54,897 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:54:54,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54 WrapperNode [2025-02-06 09:54:54,898 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:54:54,899 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:54:54,899 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:54:54,899 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:54:54,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:54,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:54,952 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1026 [2025-02-06 09:54:54,953 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:54:54,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:54:54,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:54:54,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:54:54,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:54,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:54,966 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,023 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 34, 12, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 54 writes are split as follows [0, 4, 1, 49]. [2025-02-06 09:54:55,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,070 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:54:55,093 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:54:55,094 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:54:55,094 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:54:55,095 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (1/1) ... [2025-02-06 09:54:55,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:54:55,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:54:55,121 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 09:54:55,123 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 09:54:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-02-06 09:54:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-06 09:54:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:54:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 09:54:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 09:54:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2025-02-06 09:54:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 09:54:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:54:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2025-02-06 09:54:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2025-02-06 09:54:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 09:54:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 09:54:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 09:54:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 09:54:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2025-02-06 09:54:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2025-02-06 09:54:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:54:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:54:55,320 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:54:55,321 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:54:55,379 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L955: havoc #t~malloc32.base, #t~malloc32.offset; [2025-02-06 09:55:00,240 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L979: havoc real_malloc_#t~malloc39#1.base, real_malloc_#t~malloc39#1.offset; [2025-02-06 09:55:00,240 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L969: havoc alt_memcmp_#t~nondet36#1; [2025-02-06 09:55:00,240 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L987: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-02-06 09:55:00,290 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2025-02-06 09:55:00,290 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:55:00,298 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:55:00,298 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:55:00,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:55:00 BoogieIcfgContainer [2025-02-06 09:55:00,299 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:55:00,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:55:00,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:55:00,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:55:00,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:54:54" (1/3) ... [2025-02-06 09:55:00,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a6f851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:55:00, skipping insertion in model container [2025-02-06 09:55:00,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:54:54" (2/3) ... [2025-02-06 09:55:00,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79a6f851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:55:00, skipping insertion in model container [2025-02-06 09:55:00,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:55:00" (3/3) ... [2025-02-06 09:55:00,305 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-1.i [2025-02-06 09:55:00,315 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:55:00,316 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test6-1.i that has 6 procedures, 232 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2025-02-06 09:55:00,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:55:00,348 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;@10058cf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:55:00,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 09:55:00,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 206 states have (on average 1.5970873786407767) internal successors, (329), 212 states have internal predecessors, (329), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-02-06 09:55:00,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 09:55:00,355 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:00,355 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:00,356 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:00,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:00,363 INFO L85 PathProgramCache]: Analyzing trace with hash -212854732, now seen corresponding path program 1 times [2025-02-06 09:55:00,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:00,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459937551] [2025-02-06 09:55:00,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:00,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:00,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:00,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:00,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 09:55:00,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 09:55:00,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 09:55:00,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:00,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:00,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 09:55:00,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:00,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:00,545 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:00,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459937551] [2025-02-06 09:55:00,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459937551] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:00,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:00,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 09:55:00,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732830992] [2025-02-06 09:55:00,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:00,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:55:00,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:00,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:55:00,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:55:00,562 INFO L87 Difference]: Start difference. First operand has 232 states, 206 states have (on average 1.5970873786407767) internal successors, (329), 212 states have internal predecessors, (329), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:00,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:00,578 INFO L93 Difference]: Finished difference Result 227 states and 292 transitions. [2025-02-06 09:55:00,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:55:00,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 09:55:00,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:00,586 INFO L225 Difference]: With dead ends: 227 [2025-02-06 09:55:00,586 INFO L226 Difference]: Without dead ends: 225 [2025-02-06 09:55:00,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:55:00,588 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:00,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:55:00,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2025-02-06 09:55:00,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2025-02-06 09:55:00,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 202 states have (on average 1.2871287128712872) internal successors, (260), 207 states have internal predecessors, (260), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:55:00,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 290 transitions. [2025-02-06 09:55:00,628 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 290 transitions. Word has length 10 [2025-02-06 09:55:00,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:00,629 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 290 transitions. [2025-02-06 09:55:00,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 290 transitions. [2025-02-06 09:55:00,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 09:55:00,629 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:00,629 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:00,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:00,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:00,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:00,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2053840307, now seen corresponding path program 1 times [2025-02-06 09:55:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:00,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499183454] [2025-02-06 09:55:00,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:00,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:00,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:00,837 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:00,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 09:55:00,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 09:55:00,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 09:55:00,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:00,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:00,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:55:00,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:01,062 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:01,062 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:01,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499183454] [2025-02-06 09:55:01,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499183454] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:01,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:01,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:01,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804659709] [2025-02-06 09:55:01,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:01,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:01,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:01,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:01,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:01,065 INFO L87 Difference]: Start difference. First operand 225 states and 290 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:04,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-02-06 09:55:06,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:06,372 INFO L93 Difference]: Finished difference Result 339 states and 440 transitions. [2025-02-06 09:55:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:06,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-06 09:55:06,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:06,375 INFO L225 Difference]: With dead ends: 339 [2025-02-06 09:55:06,375 INFO L226 Difference]: Without dead ends: 339 [2025-02-06 09:55:06,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:06,376 INFO L435 NwaCegarLoop]: 277 mSDtfsCounter, 137 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:06,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 785 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2025-02-06 09:55:06,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2025-02-06 09:55:06,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 335. [2025-02-06 09:55:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 312 states have (on average 1.2980769230769231) internal successors, (405), 317 states have internal predecessors, (405), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:55:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 435 transitions. [2025-02-06 09:55:06,415 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 435 transitions. Word has length 12 [2025-02-06 09:55:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:06,415 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 435 transitions. [2025-02-06 09:55:06,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:06,415 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 435 transitions. [2025-02-06 09:55:06,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 09:55:06,415 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:06,415 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:06,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:06,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:06,618 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:06,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1019628342, now seen corresponding path program 1 times [2025-02-06 09:55:06,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:06,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66194525] [2025-02-06 09:55:06,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:06,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:06,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:06,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:06,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 09:55:06,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 09:55:06,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 09:55:06,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:06,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:06,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:55:06,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:06,753 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:06,753 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:06,754 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:06,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:55:06,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:06,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:55:06,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:06,818 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:06,818 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:06,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66194525] [2025-02-06 09:55:06,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66194525] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:06,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:06,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:06,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844968482] [2025-02-06 09:55:06,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:06,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:06,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:06,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:06,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:06,820 INFO L87 Difference]: Start difference. First operand 335 states and 435 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:07,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:07,215 INFO L93 Difference]: Finished difference Result 514 states and 674 transitions. [2025-02-06 09:55:07,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:07,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-06 09:55:07,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:07,217 INFO L225 Difference]: With dead ends: 514 [2025-02-06 09:55:07,217 INFO L226 Difference]: Without dead ends: 514 [2025-02-06 09:55:07,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:55:07,218 INFO L435 NwaCegarLoop]: 269 mSDtfsCounter, 228 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:07,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 790 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 09:55:07,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2025-02-06 09:55:07,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 334. [2025-02-06 09:55:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 311 states have (on average 1.2958199356913183) internal successors, (403), 316 states have internal predecessors, (403), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:55:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 433 transitions. [2025-02-06 09:55:07,227 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 433 transitions. Word has length 15 [2025-02-06 09:55:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:07,227 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 433 transitions. [2025-02-06 09:55:07,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 433 transitions. [2025-02-06 09:55:07,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:55:07,228 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:07,228 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 09:55:07,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:07,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:07,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:07,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:07,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1697089683, now seen corresponding path program 1 times [2025-02-06 09:55:07,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:07,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1123777086] [2025-02-06 09:55:07,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:07,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:07,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:07,437 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:07,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 09:55:07,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:55:07,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:55:07,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:07,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:07,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 09:55:07,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:07,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:07,660 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:07,660 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:07,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123777086] [2025-02-06 09:55:07,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123777086] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:07,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:07,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:07,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028148053] [2025-02-06 09:55:07,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:07,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:07,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:07,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:07,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:07,661 INFO L87 Difference]: Start difference. First operand 334 states and 433 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:07,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:07,742 INFO L93 Difference]: Finished difference Result 340 states and 423 transitions. [2025-02-06 09:55:07,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 09:55:07,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-02-06 09:55:07,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:07,744 INFO L225 Difference]: With dead ends: 340 [2025-02-06 09:55:07,744 INFO L226 Difference]: Without dead ends: 340 [2025-02-06 09:55:07,744 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 09:55:07,744 INFO L435 NwaCegarLoop]: 261 mSDtfsCounter, 30 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:07,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 764 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:07,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-02-06 09:55:07,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2025-02-06 09:55:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 317 states have (on average 1.2397476340694007) internal successors, (393), 322 states have internal predecessors, (393), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-02-06 09:55:07,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 423 transitions. [2025-02-06 09:55:07,751 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 423 transitions. Word has length 50 [2025-02-06 09:55:07,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:07,751 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 423 transitions. [2025-02-06 09:55:07,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:07,752 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 423 transitions. [2025-02-06 09:55:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 09:55:07,752 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:07,752 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 09:55:07,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 09:55:07,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:07,957 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:07,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:07,958 INFO L85 PathProgramCache]: Analyzing trace with hash -742687884, now seen corresponding path program 1 times [2025-02-06 09:55:07,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:07,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1832607336] [2025-02-06 09:55:07,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:07,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:07,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:07,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:07,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 09:55:08,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 09:55:08,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 09:55:08,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:08,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:08,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 09:55:08,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:08,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:08,322 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:08,322 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:08,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832607336] [2025-02-06 09:55:08,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832607336] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:08,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:08,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 09:55:08,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949564360] [2025-02-06 09:55:08,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:08,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:55:08,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:08,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:55:08,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:55:08,324 INFO L87 Difference]: Start difference. First operand 340 states and 423 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:08,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:08,418 INFO L93 Difference]: Finished difference Result 350 states and 434 transitions. [2025-02-06 09:55:08,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 09:55:08,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2025-02-06 09:55:08,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:08,421 INFO L225 Difference]: With dead ends: 350 [2025-02-06 09:55:08,421 INFO L226 Difference]: Without dead ends: 350 [2025-02-06 09:55:08,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-06 09:55:08,422 INFO L435 NwaCegarLoop]: 273 mSDtfsCounter, 8 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:08,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1401 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:08,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2025-02-06 09:55:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 349. [2025-02-06 09:55:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 323 states have (on average 1.2352941176470589) internal successors, (399), 329 states have internal predecessors, (399), 19 states have call successors, (19), 7 states have call predecessors, (19), 5 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-06 09:55:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 433 transitions. [2025-02-06 09:55:08,433 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 433 transitions. Word has length 50 [2025-02-06 09:55:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:08,433 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 433 transitions. [2025-02-06 09:55:08,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:55:08,433 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 433 transitions. [2025-02-06 09:55:08,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-06 09:55:08,435 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:08,436 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:08,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:08,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:08,640 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:08,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:08,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1292821696, now seen corresponding path program 1 times [2025-02-06 09:55:08,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:08,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188478102] [2025-02-06 09:55:08,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:08,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:08,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:08,646 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:08,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 09:55:08,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 09:55:08,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 09:55:08,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:08,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:08,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:55:08,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:55:08,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:08,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:08,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188478102] [2025-02-06 09:55:08,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188478102] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:08,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:08,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:08,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617233422] [2025-02-06 09:55:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:08,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:08,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:08,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:08,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:08,949 INFO L87 Difference]: Start difference. First operand 349 states and 433 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 09:55:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:09,135 INFO L93 Difference]: Finished difference Result 919 states and 1160 transitions. [2025-02-06 09:55:09,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:09,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 70 [2025-02-06 09:55:09,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:09,138 INFO L225 Difference]: With dead ends: 919 [2025-02-06 09:55:09,138 INFO L226 Difference]: Without dead ends: 919 [2025-02-06 09:55:09,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:09,139 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 507 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:09,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 1437 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 09:55:09,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2025-02-06 09:55:09,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 864. [2025-02-06 09:55:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 818 states have (on average 1.254278728606357) internal successors, (1026), 825 states have internal predecessors, (1026), 33 states have call successors, (33), 12 states have call predecessors, (33), 11 states have return successors, (32), 26 states have call predecessors, (32), 29 states have call successors, (32) [2025-02-06 09:55:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1091 transitions. [2025-02-06 09:55:09,155 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1091 transitions. Word has length 70 [2025-02-06 09:55:09,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:09,155 INFO L471 AbstractCegarLoop]: Abstraction has 864 states and 1091 transitions. [2025-02-06 09:55:09,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-06 09:55:09,155 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1091 transitions. [2025-02-06 09:55:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-06 09:55:09,156 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:09,156 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:09,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 09:55:09,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:09,361 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:09,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:09,362 INFO L85 PathProgramCache]: Analyzing trace with hash -600877202, now seen corresponding path program 1 times [2025-02-06 09:55:09,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:09,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1460536391] [2025-02-06 09:55:09,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:09,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:09,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:09,365 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:09,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 09:55:09,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-06 09:55:09,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-06 09:55:09,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:09,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:09,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 09:55:09,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 09:55:09,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:09,763 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:09,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460536391] [2025-02-06 09:55:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460536391] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:09,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:09,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:09,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761022166] [2025-02-06 09:55:09,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:09,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:09,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:09,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:09,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:09,765 INFO L87 Difference]: Start difference. First operand 864 states and 1091 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:55:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:09,798 INFO L93 Difference]: Finished difference Result 876 states and 1106 transitions. [2025-02-06 09:55:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:09,799 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 96 [2025-02-06 09:55:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:09,802 INFO L225 Difference]: With dead ends: 876 [2025-02-06 09:55:09,802 INFO L226 Difference]: Without dead ends: 876 [2025-02-06 09:55:09,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:09,802 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 0 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:09,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 820 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 09:55:09,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2025-02-06 09:55:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2025-02-06 09:55:09,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 827 states have (on average 1.2551390568319225) internal successors, (1038), 837 states have internal predecessors, (1038), 33 states have call successors, (33), 12 states have call predecessors, (33), 14 states have return successors, (35), 26 states have call predecessors, (35), 29 states have call successors, (35) [2025-02-06 09:55:09,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1106 transitions. [2025-02-06 09:55:09,818 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1106 transitions. Word has length 96 [2025-02-06 09:55:09,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:09,818 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1106 transitions. [2025-02-06 09:55:09,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:55:09,818 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1106 transitions. [2025-02-06 09:55:09,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-06 09:55:09,819 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:09,819 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:09,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 09:55:10,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:10,023 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:10,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:10,024 INFO L85 PathProgramCache]: Analyzing trace with hash 445083240, now seen corresponding path program 1 times [2025-02-06 09:55:10,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:10,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [86272253] [2025-02-06 09:55:10,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:10,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:10,027 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:10,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 09:55:10,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-06 09:55:10,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-06 09:55:10,349 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:10,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:10,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 09:55:10,366 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:10,607 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 09:55:10,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:55:10,819 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-06 09:55:10,820 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:10,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86272253] [2025-02-06 09:55:10,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86272253] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:55:10,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:55:10,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2025-02-06 09:55:10,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750398873] [2025-02-06 09:55:10,820 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:55:10,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 09:55:10,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:10,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 09:55:10,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-02-06 09:55:10,823 INFO L87 Difference]: Start difference. First operand 876 states and 1106 transitions. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-06 09:55:12,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:12,383 INFO L93 Difference]: Finished difference Result 3305 states and 4202 transitions. [2025-02-06 09:55:12,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 09:55:12,384 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) Word has length 98 [2025-02-06 09:55:12,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:12,394 INFO L225 Difference]: With dead ends: 3305 [2025-02-06 09:55:12,394 INFO L226 Difference]: Without dead ends: 3305 [2025-02-06 09:55:12,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2025-02-06 09:55:12,394 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 4515 mSDsluCounter, 6293 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4546 SdHoareTripleChecker+Valid, 7247 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:12,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4546 Valid, 7247 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 09:55:12,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2025-02-06 09:55:12,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 2444. [2025-02-06 09:55:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 2344 states have (on average 1.261518771331058) internal successors, (2957), 2362 states have internal predecessors, (2957), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2025-02-06 09:55:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3100 transitions. [2025-02-06 09:55:12,457 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3100 transitions. Word has length 98 [2025-02-06 09:55:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:12,457 INFO L471 AbstractCegarLoop]: Abstraction has 2444 states and 3100 transitions. [2025-02-06 09:55:12,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 12 states have internal predecessors, (160), 8 states have call successors, (14), 7 states have call predecessors, (14), 7 states have return successors, (10), 5 states have call predecessors, (10), 7 states have call successors, (10) [2025-02-06 09:55:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3100 transitions. [2025-02-06 09:55:12,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-02-06 09:55:12,458 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:12,458 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:12,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 09:55:12,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:12,663 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:12,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:12,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1696230665, now seen corresponding path program 1 times [2025-02-06 09:55:12,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:12,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1694226087] [2025-02-06 09:55:12,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:12,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:12,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:12,671 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:12,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 09:55:12,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-02-06 09:55:13,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-02-06 09:55:13,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:13,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:13,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 09:55:13,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:13,046 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:13,047 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:13,047 INFO L173 IndexEqualityManager]: detected equality via solver [2025-02-06 09:55:13,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2025-02-06 09:55:13,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 09:55:13,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2025-02-06 09:55:13,163 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-06 09:55:13,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 09:55:13,164 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:13,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694226087] [2025-02-06 09:55:13,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694226087] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:55:13,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:55:13,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 09:55:13,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612587206] [2025-02-06 09:55:13,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:55:13,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 09:55:13,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:13,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 09:55:13,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 09:55:13,169 INFO L87 Difference]: Start difference. First operand 2444 states and 3100 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:55:13,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:13,586 INFO L93 Difference]: Finished difference Result 3444 states and 4426 transitions. [2025-02-06 09:55:13,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 09:55:13,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 106 [2025-02-06 09:55:13,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:13,595 INFO L225 Difference]: With dead ends: 3444 [2025-02-06 09:55:13,595 INFO L226 Difference]: Without dead ends: 3444 [2025-02-06 09:55:13,595 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 09:55:13,596 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 213 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:13,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 763 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 09:55:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3444 states. [2025-02-06 09:55:13,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3444 to 2460. [2025-02-06 09:55:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 2360 states have (on average 1.2597457627118644) internal successors, (2973), 2378 states have internal predecessors, (2973), 69 states have call successors, (69), 26 states have call predecessors, (69), 29 states have return successors, (74), 55 states have call predecessors, (74), 65 states have call successors, (74) [2025-02-06 09:55:13,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3116 transitions. [2025-02-06 09:55:13,633 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3116 transitions. Word has length 106 [2025-02-06 09:55:13,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:13,633 INFO L471 AbstractCegarLoop]: Abstraction has 2460 states and 3116 transitions. [2025-02-06 09:55:13,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-02-06 09:55:13,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3116 transitions. [2025-02-06 09:55:13,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-02-06 09:55:13,634 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:13,634 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:13,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:13,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:13,835 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:13,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2036717930, now seen corresponding path program 1 times [2025-02-06 09:55:13,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:13,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386193509] [2025-02-06 09:55:13,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:55:13,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:13,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:13,838 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:13,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 09:55:14,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-02-06 09:55:14,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-02-06 09:55:14,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:55:14,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:55:14,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 09:55:14,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 09:55:14,273 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 09:55:14,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 09:55:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-02-06 09:55:14,365 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 09:55:14,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386193509] [2025-02-06 09:55:14,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386193509] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 09:55:14,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 09:55:14,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-02-06 09:55:14,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459125867] [2025-02-06 09:55:14,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 09:55:14,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 09:55:14,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 09:55:14,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 09:55:14,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 09:55:14,366 INFO L87 Difference]: Start difference. First operand 2460 states and 3116 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-06 09:55:14,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 09:55:14,517 INFO L93 Difference]: Finished difference Result 2538 states and 3230 transitions. [2025-02-06 09:55:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 09:55:14,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 113 [2025-02-06 09:55:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 09:55:14,524 INFO L225 Difference]: With dead ends: 2538 [2025-02-06 09:55:14,525 INFO L226 Difference]: Without dead ends: 2538 [2025-02-06 09:55:14,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-02-06 09:55:14,525 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 5 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 09:55:14,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1357 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 09:55:14,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2025-02-06 09:55:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2520. [2025-02-06 09:55:14,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 2414 states have (on average 1.2688483844241922) internal successors, (3063), 2432 states have internal predecessors, (3063), 69 states have call successors, (69), 32 states have call predecessors, (69), 35 states have return successors, (80), 55 states have call predecessors, (80), 65 states have call successors, (80) [2025-02-06 09:55:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3212 transitions. [2025-02-06 09:55:14,566 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3212 transitions. Word has length 113 [2025-02-06 09:55:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 09:55:14,566 INFO L471 AbstractCegarLoop]: Abstraction has 2520 states and 3212 transitions. [2025-02-06 09:55:14,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-06 09:55:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3212 transitions. [2025-02-06 09:55:14,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-02-06 09:55:14,567 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 09:55:14,567 INFO L218 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 09:55:14,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-06 09:55:14,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:14,769 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-02-06 09:55:14,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:55:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1048601660, now seen corresponding path program 2 times [2025-02-06 09:55:14,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 09:55:14,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097437682] [2025-02-06 09:55:14,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 09:55:14,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 09:55:14,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:55:14,772 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 09:55:14,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 09:55:15,027 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 117 statements into 2 equivalence classes.